[HN Gopher] How credit cards make money
       ___________________________________________________________________
        
       How credit cards make money
        
       Author : grn
       Score  : 223 points
       Date   : 2021-11-05 16:17 UTC (6 hours ago)
        
 (HTM) web link (bam.kalzumeus.com)
 (TXT) w3m dump (bam.kalzumeus.com)
        
       | askingpatio21 wrote:
       | Hey Patio - what's your current take on Crypto and have you / do
       | you cover that in your newsletter or have a more recent twtr
       | thread to send us to?
       | 
       | I know you've been a major skeptic of the gratuitous pyramiding,
       | wash trading, and shaky (or non existent) foundation of Tether
       | etc
       | 
       | But w/your depth of knowledge on the current financial system
       | would be very interested in your take on the current market and
       | next gens of defi / staking / shared pools / etc
       | 
       | Would love to see you ingest and break that all down
       | 
       | https://techcrunch.com/2021/10/13/payments-giant-stripe-says...
        
       | bob229 wrote:
       | They make money by taking advantage of fools. They are a shameful
       | product
        
       | patio11 wrote:
       | I'm happy to answer any questions or take suggestions for future
       | issues if you have them, HN.
       | 
       | Repeating something I've said before: this is the 3rd issue of a
       | weekly newsletter, and its going to come out on every Friday for
       | the foreseeable future. As someone who has spent more than 10
       | years here, I'm keenly sensitive to HN's desire to not have the
       | front page be as predictable as my new shipping cadence. I'd
       | appreciate if folks could be selective in submitting these; in
       | prior years I'd space out my essays to avoid wearing out my
       | welcome but that's difficult to do with a newsletter that is
       | open-to-the-public.
        
         | computator wrote:
         | If you have a credit card that charges no foreign exchange fee,
         | could you overpay your credit card (i.e., leave a balance in
         | your favor on the card), then withdraw cash at foreign ATM
         | machines, thereby avoiding _both_ forex fees and credit card
         | interest?
         | 
         | The terms & conditions on my credit card sound like it should
         | work (I shouldn't be charged interest if I have a credit
         | balance), but I've never tried it.
         | 
         | Failing that idea, do you have any tips for frequent American
         | travellers on how to get foreign _cash_ without paying
         | excessive conversion fees?
        
           | toast0 wrote:
           | > Failing that idea, do you have any tips for frequent
           | American travellers on how to get foreign cash without paying
           | excessive conversion fees?
           | 
           | Many credit union deposit accounts with ATM access can use
           | some foreign ATMs with no fees and reasonable forex rates.
           | Some online deposit accounts with ATM fee reimbursements will
           | also reimburse foreign ATM fees and have reasonable forex
           | rates. Things like Schwab and Fidelity, IIRC. My personal
           | experience is a bit dated, but I'd try to have two separate
           | cards on different networks if possible, because my ATM card
           | only worked in half of the UK ATMs I tried, and that wasn't
           | very convenient, as the ATMs I couldn't used were at the
           | chunnel station and I needed cash for an unlicensed taxi.
        
           | leesalminen wrote:
           | I just used a US Capital One 360 debit card to withdraw Costa
           | Rica Colones today. Based on Google's currency conversion for
           | today, it cost me $0.80 more than it should have. Maybe other
           | banks / countries are more egregious?
        
         | throwawaaaaay17 wrote:
         | Why not write on Substack? I'd love a comments section for your
         | newsletter.
        
           | patio11 wrote:
           | I welcome comments in my inbox but, having long-ago had them
           | on my blog, do not consider the lack of them a bug.
        
             | fragmede wrote:
             | Which is very reasonable. The SaaS product for comment
             | moderation on a very niche site hasn't arrived yet (afaik.
             | links welcome). Realistically though, you've outsourced the
             | cost of that that work to dang/the team on HN. Which is
             | what I'd do, but I wonder how dang feels about providing
             | that as a service.
        
         | TorKlingberg wrote:
         | I take it interchange fees is the reason some small stores will
         | not take credit cards for small purchases, and low-margin
         | stores will often not take Amex.
         | 
         | Separately, is the "credit score" system a particularly
         | American concept? In the UK the credit report companies will
         | give you a number, but it seems to be something they make up to
         | fill a consumer demand rather than something card issuers
         | actually use. Do you know how the FICO score became such a
         | central thing in US consumer credit, and does Japan work
         | differently?
        
           | patio11 wrote:
           | Substantially correct on the first part. In particular, and
           | depends on the region/processor/card brand, many SMBs will
           | have interchange which has a fixed-per-transaction component
           | in addition to a percentage fee, and that can be prohibitive
           | at small "basket" sizes.
           | 
           | The U.S. has the world's most developed and widely relied
           | upon credit reporting infrastructure, by a substantial
           | margin. The history of FICO doesn't quite fit into the
           | margins of this comment but I'd love to do an issue on it
           | someday. Credit scores per se are less a thing in Japan but
           | there are cross-issuer I-can't-believe-its-not-bureaus which
           | have information sharing agreements, the dominant purpose of
           | them being identifying fraudulent actors and account
           | takeovers rather than credit risk (nearly zero in Japan,
           | historically).
        
             | TorKlingberg wrote:
             | Thank you. It matches my impression that lenders in other
             | countries do share information, but mainly negative factors
             | such as defaults. Than means "credit building" does not
             | exist in the same way.
             | 
             | > nearly zero in Japan, historically
             | 
             | That surprises me actually. I know Japan has a very, let's
             | say, high conscientiousness culture but do they never get
             | into economic problems and are simply unable to pay card
             | bills?
        
               | patio11 wrote:
               | "Never" is a strong word, but you're welcome to read the
               | English-language reports of Japanese lenders which break
               | this out for their consumer businesses. Factors which
               | generally tend to depress it include low revolving credit
               | use, relatively high underwriting standards for credit
               | (not solely a positive thing--ask your favorite Japan-
               | resident foreigner for stories sometime), formal or
               | informal risk transfer, outsourcing collections to the
               | yakuza by policy [0], etc.
               | 
               | [0] I feel it necessary to say "I am not making this up.
               | It happened at first-rate financial institutions many
               | times within the last 20 years."
        
             | jasode wrote:
             | _> Credit scores per se are less a thing in Japan but there
             | are cross-issuer I-can't-believe-its-not-bureaus which have
             | information sharing agreements, the dominant purpose of
             | them being identifying fraudulent actors and account
             | takeovers rather than credit risk (nearly zero in Japan,
             | historically)._
             | 
             | Not debating you but a random reddit commenter says a
             | (pseudo) "credit score" in Japan is implementation and
             | semantics. The CIC, Zengin, and JICC organizations' credit
             | histories data _functions_ very similar to a USA credit
             | score.
             | 
             | https://old.reddit.com/r/japanlife/comments/goy0vv/are_cred
             | i...
        
         | vineyardmike wrote:
         | Hey Patrick,
         | 
         | Thanks for this. I'm earlier in my career but very interested
         | in fintech, so as i explore where i want to go, your writing
         | has been immensely helpful and informative!
         | 
         | I am particularly fascinated at the moment by the world of
         | differences in how finances work for people vs businesses. (eg.
         | People typically pay taxes in income, but businesses pay taxes
         | on profit. That leads to differences in how money is made/spent
         | between those groups.)
         | 
         | I guess one suggestion i have for your newsletter is in how
         | credit is given to businesses - humans (at least in US) have
         | fairly well understood credit scores. Its well documented how
         | credit card companies, consumer loans, mortgages evaluate
         | individual credit from those scores, but how does a business
         | acquire credit to for short term spending (corp cards), what
         | about to make big CapEx purchases like buildings, maybe even
         | for financial funds and speculative transactions? How are those
         | businesses evaluated, underwritten, etc? What about banks
         | borrowing from other banks?
        
         | amance wrote:
         | Patrick, as someone with a startup in this space, I just want
         | to say that your content is fantastic. I really appreciated
         | reading this, and was unaware that Japan had a (pricing
         | cartel?) with rewards. Is the market highly concentrated there
         | as it is in the US? If it is indeed an inexplicable
         | coordination situation, has there ever been any antitrust
         | action in this space there?
        
           | patio11 wrote:
           | Due to my quirky position as a foreigner who works in the
           | financial industry in Japan I will not comment on structural
           | sources for observed pricing discipline, but if you're
           | interested in this topic, you may enjoy the Japan Fair Trade
           | Commission's writing on it: https://www.jftc.go.jp/en/pressre
           | leases/yearly-2019/March/Su... It's an active area for them,
           | according to their public statements.
        
         | steveklabnik wrote:
         | One thing that might be fun to cover: I got in a twitter
         | discussion today about why Europeans don't use credit cards as
         | much as people do in the US. Researching this question and
         | related ones ("why are wire transfers free in Europe but not in
         | the US") are basically impossible to Google, as similar but not
         | actually good results ("the cheapest way to wire money to
         | Europe") drown out any primary resources.
        
           | avn2109 wrote:
           | Semi-related: What happens with interchange and related fees,
           | when an American credit card is used in Europe?
        
             | fragmede wrote:
             | Ooh that's a good one. It includes a detour into some
             | really weird forex stuff. If you're used to it it's not
             | _that_ weird but as a American, with US credit card, and a
             | US bank account who then banks exclusively in USD, I found
             | it complicated and fascinating.
             | 
             | Basically, other countries can bank in USD _sometimes_ , so
             | there's a weird corner case that you can send USD to a
             | merchant but can land in their account as
             | $converted_currency or USD that isn't so corner. I'll let
             | patio11 cover this (if/when he gets to it) as there are
             | details I no longer have access to and thus can't do the
             | subject justice.
        
               | lotsofpulp wrote:
               | As an aside, if you are using no forex fee US credit
               | card, and a foreign merchant asks if you want to pay with
               | USD or the local currency, always choose local currency.
               | 
               | If you choose USD, then the merchant gets to choose
               | whatever exchange rate they want to convert at, and will
               | be far from the spot price (hence some merchants go out
               | of their way to ask you if you want to pay with USD). If
               | you choose the local currency, then your American bank
               | will give you an exchange rate extremely close to the
               | spot rate and the transaction ends up being much cheaper
               | for you.
        
               | toast0 wrote:
               | Even if you have a card that charges an exchange fee,
               | they likely charge a fee for USD denominated foreign
               | transactions too, although it may be slightly less, and
               | the more favorable exchange rate from your bank may cover
               | the fee.
        
           | brummm wrote:
           | Interchange rates in Europe are capped at an order of
           | magnitude lower than in the US. The economics of rewards
           | credit cards just don't work out in Europe.
        
           | darkwater wrote:
           | > ("why are wire transfers free in Europe but not in the US")
           | 
           | this applies only to a subset of Europe or european banks.
        
             | bosie wrote:
             | Do you want to expand where it isn't the case?
        
         | jiqiren wrote:
         | Is it true top tier customer reward cards (black/platinum/amex
         | business/etc) have interchange fees that push into 3%
         | territory? If so, how do companies like Square make money when
         | they only charge the merchant 2.6% for a POS transaction?
        
           | amance wrote:
           | No. Aggregate interchange for top-tier Visa and Mastercard
           | personal cards maxes out at ~2.3%.
           | 
           | Corporate cards actually earn significantly higher
           | interchange, but even those don't aggregate out above 3%.
           | Actually, the networks spend a lot of time policing banks
           | from trying to arbitrage the difference by issuing corporate
           | cards to individuals.
           | 
           | Payment processors like Square just know that their margins
           | will vary by the type of card used by consumers, but aim to
           | have an aggregate positive margin across all cards. Once you
           | get into enterprise contract negotiations with them though,
           | they'll look at your card mix to make a pricing offer.
        
           | fragmede wrote:
           | Square, by virtue of their business model, get lower
           | interchange fee because charges where the credit card is
           | present, has lower fees. Online-only merchants get no such
           | discount.
        
       | morpheuskafka wrote:
       | > Debit cards are a very similar product with enough under-the-
       | hood differences that they deserve their own moment in the sun.
       | In particular, due to a quirk of U.S. interchange regulation,
       | they basically fund most of the fintech industry
       | 
       | Basically, the Durbin Amendment caps interchange on debit cards
       | at a far, far lower rate than credit cards; they also have
       | different networks (not MC or Visa) that can be run at least for
       | in person transactions. However, the limit does not apply to
       | banks with less than $10 billion in assets.
       | 
       | This is why some online banks can offer lower fees and sometimes
       | even debit cash back (1% is the most I've seen though, so not
       | competitive with credit). But its also why ever fintech under the
       | sun pushes debit cards so heavily--the debit card is issued by a
       | (small, non Durbin-covered) partner bank who then shares revenue
       | with the fintech company.
       | 
       | At the end of the day, credit cards are still significant better
       | for customers. You can have multiple cards with different
       | benefits while keeping all your money in one place, and you can
       | prevent overdrafts because you don't have random subscriptions
       | taking out unpredictable amounts of money in the middle of the
       | night and causing a check to bounce the next day. You are no
       | longer obsessing over "early payday" features or ACH speeds.
       | 
       | Credit cards also provide a nice hack to allow cash deposit for
       | those with only online banks--you can often use a big bank's ATM
       | to make a payment towards the credit card, allowing you to get
       | rid of ordinary amounts of cash.
        
         | vel0city wrote:
         | Can you further explain that cash deposit to credit card
         | payment process through an ATM? I've only ever used ATMs to
         | withdraw funds, never to make deposits, so I don't know what
         | that process would look like or which banks would let me do
         | that.
        
           | bombcar wrote:
           | Right before using phones to deposit checks, some of the more
           | advanced ATMs would let you deposit checks directing via
           | scanning (older ones would basically just take the check and
           | a teller would handle it later).
        
           | conductr wrote:
           | I use Wells Fargo. Their ATM's take and scan in checks, etc
           | and they will actually take in cash and count it inside the
           | ATM. You get to confirm the amounts and it deposits into your
           | account (subject to normal holds/availability timing). They
           | have a slot that is like a conveyor belt that opens and I
           | just insert the stack of paper you can hear what sounds like
           | a bill counter sorting the stack and counting it. You get to
           | see scans of the checks. It typically shows each one and asks
           | you to confirm the amount the OCR thinks is correct. No
           | envelopes, etc just feed it the stack of paper in any order
           | so long as it's short side first. Occasionally it will reject
           | a bill that is too wrinkled. I use it regularly instead of
           | waiting to see a teller.
        
           | blacksmith_tb wrote:
           | I had no idea that was an option, but I see BofA[1] supports
           | it. Seems broadly less convenient than online, but I suppose
           | better than needing to wait in line for a human teller.
           | 
           | 1: https://www.bankofamerica.com/banking-
           | information/assistance...
        
         | bluedevil2k wrote:
         | You missed the biggest advantage of credit cards - the limited
         | liability of the card holder to fraudulent charges!
         | 
         | From a financial website...
         | 
         | " CREDIT CARDS Credit cards offer consumers the widest fraud
         | protection. By Federal law, a cardholder is only liable for the
         | first $50 of an unauthorized transaction at most, with many
         | issuers offering cards with zero liability. DEBIT CARDS Debit
         | card holders are protected under a different law, the
         | Electronic Funds Transfer Act. With debit cards, users'
         | liability is capped at $50 only if they notify the bank within
         | two days of realizing the debit card is missing. Beyond that,
         | they could be responsible for up to $500 of a crook's spending
         | spree. And waiting more than 60 days to contact the bank could
         | leave a user stuck paying every cent of the unauthorized
         | charges."
        
           | zucked wrote:
           | I've taken this one step further and I now use a full-on
           | burner credit card. It has no autopay or reoccurring payments
           | associated with it so I could light it on fire and not be too
           | upset about it.
           | 
           | I' have all my autopayments set up on a specific card that
           | never leaves a drawer in my house.
           | 
           | End result is that when the burner card gets compromised, as
           | it does several times a year at gas pumps and such, I toss it
           | out, get a new one and it's not all that painful. The
           | autopayment card has yet to be compromised.
           | 
           | I wish it were easier to get temporary card numbers without
           | giving someone else access to my purchase data.
        
             | dsizzle wrote:
             | I don't get it - you fully cancel the card? Or do you mean
             | you just get the credit card to issue a new one? If that's
             | the case, then I don't the "burner" aspect. That's just
             | normal usage. If the former, what advantage does that
             | provide? Is it not in your name? If there's some fraudulent
             | charge but you just bail on the card rather than go through
             | the normal process, it looks like non-payment and affects
             | your credit.
        
               | toast0 wrote:
               | Paraphrasing a lot, I think the advice is to have one
               | credit card for scheduled payments and things, and not
               | take that out of the house. That way if your out and
               | about card gets replaced, you won't need to go through
               | and update all your scheduled payments.
        
               | jkubicek wrote:
               | I can't be the only one that uses my once-every-18-month
               | credit card cancellation to help me track down the
               | services that I forgot I had subscribed to.
        
               | toast0 wrote:
               | Unless you're dropping the account completely, it's not
               | super effective, because card issuers participate in
               | services to update your subscriptions to newly issued
               | numbers.
        
             | ricardobayes wrote:
             | You guys would love revolut we have in Europe. It has
             | capability to generate virtual card numbers that
             | automatically get disabled after a single use.
        
           | jjeaff wrote:
           | I'm not sure if that distinction makes much of a difference
           | since the vast majority of debit card theft is not via the
           | physical card, but through skimming.
           | 
           | Debit cards do have the disadvantage of your money being gone
           | until the bank makes you whole. But I'm not sure if the
           | liability is really any different (unless physically stolen
           | and not reported, I guess).
        
           | gregmac wrote:
           | This is one of the main reasons why I use credit cards over
           | debit.
           | 
           | If there's a dispute over a charge, I believe with debit
           | cards the money is still out of your account until it gets
           | sorted out -- this could be days or weeks.
           | 
           | With credit cards, the money in dispute is not "owed" to the
           | card company, and at worst it reduces your available credit
           | by that amount, which is only an issue if you're spending
           | enough to max your card out anyway.
           | 
           | Even though the end result is similar, there's a bad feeling
           | about the debit card fraud: It's _my_ money tied up, while
           | with credit it 's the _card issuer 's_ money.
        
             | adzm wrote:
             | FWIW I had fraudulent debit charges credited to my account
             | the next day while under investigation. Though the
             | experience was enough to pretty much stop using debit cards
             | except for specific accounts that are not my primary.
        
           | nostromo wrote:
           | I got burned by Aliexpress and now I highly recommend people
           | use credit cards for all purchases.
           | 
           | I had a debit card saved on Aliexpress. The account was
           | compromised by unknown means (maybe public wifi). Someone
           | bought several $1,000+ phones from China that shipped to me
           | in the US. I presume the sellers were in on it and were
           | selling me unwanted inventory at inflated prices. Because
           | they had tracking information, my bank (HSBC) said their
           | hands were tied and I lost several thousand dollars
           | overnight. It didn't matter that it was obviously fraud -- I
           | provided customer service emails, logs showing the purchases
           | all happened at 4am local time, and all at the exact same
           | timestamp.
           | 
           | Moral of the story: don't use debit cards, don't save your
           | cards online (save them in your browser and unselect "save
           | this card"), don't expect your bank to have effective fraud
           | detection, and don't trust Aliexpress to have your back.
        
             | [deleted]
        
             | ed_elliott_asc wrote:
             | I haven't had anything this bad but always use credit cards
             | online and maybe even in real life and pay off the balance
             | as the protections are so much better - it is stupid
             | really.
        
               | clairity wrote:
               | yes, never use your debit card and use only credit cards
               | online, but cash is better for non-major in-person
               | purchases as it's inherently private and anonymous. it's
               | also better for the payee (hopefully a local retailer not
               | a mega-corp), since they don't have to pay the fees. for
               | major in-person purchases, the extra (fraud, warranty,
               | etc.) protections provided by the credit card may be
               | worth the privacy/anonymity tradeoff.
        
             | bluedevil2k wrote:
             | Privacy.com - I use it for any recurring payment or
             | overseas purchase
        
             | jopsen wrote:
             | > Because they had tracking information, my bank (HSBC)
             | said their hands were tied...
             | 
             | But a lawsuit might untie them. That said fraud can
             | sometimes be too hard to prove.
        
             | Fnoord wrote:
             | You can save your debit/credit card, just don't save the
             | CVV (if it is static). My debit card provider also has a
             | feature to randomizes CVV every 5 minutes ie. for every
             | purchase (I can enable or disable the feature). CVV is
             | mandatory for online usage of debit/credit card.
             | 
             | The same provider also give 25 IBANs per account. I could,
             | for free, put 25 virtual debit cards on them, and have the
             | IBANs empty unless I put money on it. Good luck scamming me
             | this way. After all, the accounts are empty except for a
             | few min when I put money on them to spend it.
        
             | 101keyboard wrote:
             | My Citi Dividend 1% Cash Back card allows me to create
             | Virtual Cards for such things.
             | 
             | Any other cards anybody can recommend?
        
             | figassis wrote:
             | My solution to this is having a debit card connected to an
             | account that has no funds and allows no overdrafts. And I
             | only load the account when I specifically want to pay for
             | something. I do this for everything, incl. Spotify,
             | Netflix, etc. I pay a subscription when I want to pay for
             | it, so usually at the end of the month I load the total of
             | my subscriptions and they all go away. This also helps me
             | keep track of my spending and is a good way to see how
             | little things add up, like apple in app subscriptions. I do
             | this religiously because once I was traveling in the winter
             | and suddenly I had $200 disappear from my card and I was
             | unable to get a cab/uber and almost froze to death. Had to
             | get help from police officers. I swore to never again let
             | anyone just take money from me without my approval, whether
             | I owed them or not.
             | 
             | So you find my card in the wild, good luck.
        
               | prepend wrote:
               | How is this better than using a credit card?
        
               | chemmail wrote:
               | Some people can't control themselves.
        
             | jacquesm wrote:
             | Funny how the banks are able to roll back at will when
             | _they_ are defrauded but when it is their customers they
             | pretend that they can 't do anything. I've seen
             | transactions six months old rolled back because it
             | benefited the bank.
        
               | SilasX wrote:
               | Which is why I cringed at patio11's twitter thread where
               | he insisted that the banking system is one giant kumbaya
               | circle that works together to Do The Right THing
               | 
               | https://twitter.com/patio11/status/1443745867572277250
        
               | jacquesm wrote:
               | I've worked for a bank, let's just say that I can't agree
               | with that. A US bank at that.
        
           | [deleted]
        
           | amelius wrote:
           | > Credit cards offer consumers the widest fraud protection
           | 
           | That's for consumers, but what protection do I get on my
           | company credit card?
        
         | phaedrus441 wrote:
         | > _Credit cards also provide a nice hack to allow cash deposit
         | for those with only online banks..._
         | 
         | Thank you, I had no idea about this! Going to seriously help me
         | "deposit" cash since my bank's closest physical presence is two
         | states away...
        
         | stefan_ wrote:
         | The intersection between the people that have random overdrafts
         | and those that just pay off their credit card debt in full
         | every time is the empty set. Why make up excuses for a few rent
         | seekers that tax the entire economy?
        
           | lotsofpulp wrote:
           | Merchants WANT people to use credit cards. There is nothing
           | stopping merchants from offering a cash/debit price and a
           | credit price since 10 years ago. The frank dodd legislation
           | made illegal for card networks to ban offering discounts for
           | debit card payments, and in Mar 2017, the Supreme Court said
           | merchants cannot be barred from advertising higher prices for
           | credit cards.
           | 
           | https://www.ftc.gov/tips-advice/business-
           | center/guidance/new...
           | 
           | https://en.wikipedia.org/wiki/Expressions_Hair_Design_v._Sch.
           | ..
           | 
           | It is very clear that most merchants earn more from people
           | using credit cards more often, otherwise they would try to
           | dissuade or offset it by adding a premium for using credit
           | cards.
           | 
           | Target sort of does this by giving a 5% discount if you pay
           | via ACH from your bank account (via a debit target redcard
           | account), and in the western US, a grocery store company
           | called Winco advertises it does not take credit cards at all
           | in order to provide the lowest prices.
           | 
           | On the other hand, Aldi in the US used to only take debit
           | cards, and they started taking credit cards 5 or so years
           | ago, so they are obviously assuming they will earn more money
           | by lifting prices a little and attracting credit card users.
        
             | TheDong wrote:
             | I don't think "WANT" is the right word there. "WANT" is
             | active, and I would posit that merchants "reluctantly
             | accept reality" when it comes to credit cards.
             | 
             | The obviously silly analogue would be that a merchant who
             | dislikes guns could choose to hang a sign in their texas
             | cafe with "no guns allowed", but they probably won't. That
             | doesn't mean they WANT people to bring in guns, but that
             | they think it would do too much harm within the market
             | they're in to reject them. It would be a case of "reluctant
             | acceptance of reality".
             | 
             | I think credit cards are the same. It should be self-
             | evident that a merchant would want customers to pay with
             | debit cards since the lack of interchange fees means the
             | merchant makes strictly more money. Of course they want to
             | make more money. But they also must accept that charging
             | more fees for credit card users or rejecting them entirely
             | would reduce overall customer base and profit, and so they
             | accept that people can use credit cards. They want
             | customers, not credit card usage.
        
               | mywittyname wrote:
               | Retailers do track spend based on payment type. It was
               | the case several years ago that people who paid with
               | credit cards tended to spend more and buy higher margin
               | items than other payment types.
               | 
               | I'm not sure if this is still the case, but if it is,
               | then that is one situations where accepting credit cards
               | pays for itself.
               | 
               | It is helpful to keep in mind that different businesses
               | can pay wildly different fees for CC transactions.
               | Walmart can sell you a $0.50 item for basically nothing,
               | while a corner market might be better off if you stole it
               | instead. So Walmart might absolutely want everyone to use
               | credit cards while the corner market would likely prefer
               | nobody did.
        
             | revolvingocelot wrote:
             | >It is very clear that most merchants earn more from people
             | using credit cards more often, otherwise there is no reason
             | they would try to dissuade or offset it by adding a premium
             | for using credit cards.
             | 
             | Can you elaborate? IME merchants do NOT want people to use
             | credit cards; transaction fees eat into the sale price. I
             | remember a time when some electronics stores would
             | explicitly advertise a cash discount, so as to avoid the
             | transaction fees. I once worked in a bar that accepted
             | every major credit card, save American Express, because of
             | their several-points-higher transaction fee. The premium is
             | added to offset this.
             | 
             | How is it very clear that most merchants earn more?
        
               | lotsofpulp wrote:
               | > How is it very clear that most merchants earn more?
               | 
               | Because they do not offer discounts for cash/debit, and
               | they also do not charge a fee for using credit card.
               | 
               | As I showed in my post, legally, merchants are clear to
               | advertise higher prices for credit card users. The fact
               | that they do not means they do not want to dissuade
               | credit card use. From there, it follows that since
               | businesses are interested in earning more money, that if
               | they do not want to dissuade credit card use, then they
               | must be earning more money (or at least breaking even)
               | due to people using credit cards.
               | 
               | People spend more money when they use credit cards than
               | debit/cash. Note that my above post specified "most
               | merchants", not all merchants. Obviously, some merchants
               | do benefit from dissuading credit card use, such as the
               | examples I gave, or many gas stations and small
               | restaurants or convenience stores.
        
               | kasey_junk wrote:
               | Cash management is also very expensive for most
               | merchants. There are effectively 3 reasons merchants
               | might prefer cards to cash these days a) their volume is
               | so low that cash management is not an issue (that is the
               | transaction fees) b) their margins are so low on a
               | particular item that the transaction fee eats all of it
               | but the broader business still uses credit cards or c)
               | they do not want an electronic record of the sale.
        
           | mindslight wrote:
           | Everybody finds different local maximums. I autopay credit
           | cards in full every statement, while most charges that hit my
           | checking account are overdrafts - it autopulls from the
           | companion savings account with a better rate. Credit cards
           | coalescing many small charges into one allows me to easily
           | stay within 6 transactions per month (Reg D). Although I look
           | forward to returning to using cash wherever possible after
           | the pandemic has cleared up a bit more.
        
         | xivzgrev wrote:
         | Credit cards are not a panacea. For subprime customers, debit
         | cards are often more popular because they help ensure people
         | spend within their limits.
        
         | davchana wrote:
         | Just a data point about your last paragraph, depositing cash to
         | make payments. My chase atm card does not allow to deposit cash
         | directly to any chase or non chase credit card. I have to put
         | it in chase checking, and then I can use it for payments. Also,
         | capital one, synchrony, amex does not allow me to pay more than
         | 10% of my outstanding balance on their credit cards.
        
           | masklinn wrote:
           | > Also, capital one, synchrony, amex does not allow me to pay
           | more than 10% of my outstanding balance on their credit
           | cards.
           | 
           | Do you mean "in cash" or, like, as any single transaction?
        
             | davchana wrote:
             | No, i mean if my outstanding credit card balance is $100
             | (statement or not, but outside of pending, means cleared),
             | then Amex or Capital One apps does not allow payments
             | bigger than $110 (minus any pending payments).
        
         | Asooka wrote:
         | I just have two bank accounts. One I use to pay online, that I
         | put money into myself, and another where I receive my salary.
         | The most anyone can surprise charge me is about 60 EUR, because
         | I don't keep more money in the online purchases account. The
         | upside is that I understand all parts of how this works. I
         | never managed to grok all the details about credit cards and
         | their endless features. I just pay the bank to maintain two
         | accounts with two debit cards, and it costs me the exact same
         | amount every month.
        
           | vineyardmike wrote:
           | > never managed to grok all the details about credit cards
           | 
           | You should look at getting a charge card. Basically a credit
           | card where you can't keep a balance. Its basically a pay-
           | after debit card where you can not pay a charge if its fraud.
           | 
           | Some have nice perks, but you can just ignore that if you
           | want.
        
         | ollien wrote:
         | > You are no longer obsessing over "early payday" features or
         | ACH speeds.
         | 
         | Timing ACH payments _sucks_.
         | 
         | Tangential, but I'm in a renting situation where my landlord
         | demands rent land in their account on the first of the month.
         | Receiving rent on the 26th (i.e. 5 days early, not 26 days
         | late) was deemed "too confusing" for them. I now have to play
         | this awful game of timing ACH transfers to land on their
         | account as close to the first as I possibly can.
        
           | arcticbull wrote:
           | Agreed, luckily RTP rollout is well under way, and it won't
           | be long before ACH is a thing of the past. [1]
           | 
           | [1] https://www.theclearinghouse.org/payment-systems/rtp
        
             | toomuchtodo wrote:
             | FedNow, the Fed's instant payment system to replace ACH, it
             | currently ahead of schedule for a 2023 GA. Beta testing
             | between a handful of financial institutions is working as
             | expected (from what I've heard). One way or another,
             | instant payments will be here shortly.
        
           | jedberg wrote:
           | What state are you in? What they are doing may be illegal. In
           | California the rent is on time as long as you pay in advance
           | of the deadline. If you send in six months rent all at once,
           | then you are on time for the next six months.
           | 
           | Also your bank may be able to do this for you. If you add
           | your landlord as a bill pay recipient and set the due date as
           | the 1st, the bank will mail the check on the appropriate day,
           | and if it arrives late, will often cover the late fee.
        
             | pdpi wrote:
             | I just tried this, I opened my bank's app and it took me
             | the whole of 2 minutes to set up a standing order to pay my
             | friend PS10 on the first of the month. It would be in his
             | account on the 1st, or the next working day. I pay my
             | cleaner via bank transfer when she leaves my place, and
             | it's in her account by the time she's in the bus. My bank
             | mailing cheques to my landlord is a concept that's just
             | bizarre to me.
        
               | jedberg wrote:
               | Given that you are sending pounds instead of dollars, I'm
               | guessing you live in a civilized place with modern
               | banking and not a backwoods like the USA.
               | 
               | The problem is not technology, it's the USA banking
               | system. We have no way to instantly send money to someone
               | over a few thousand dollars without huge fees. Oftentimes
               | rent exceeds that limit in urban areas.
        
               | lotsofpulp wrote:
               | You can send money via Zelle instantly, but I would stick
               | to check or ACH purposes for legal dispute reasons in the
               | case of conducting business, especially paying rent.
        
               | jedberg wrote:
               | Zelle has a few thousand dollar per day/week/month limit,
               | which, at least in the Bay Area, is too low for rent.
        
           | reaperducer wrote:
           | _I 'm in a renting situation where my landlord demands rent
           | land in their account on the first of the month. Receiving
           | rent on the 26th (i.e. 5 days early, not 26 days late) was
           | deemed "too confusing" for them._
           | 
           | I ran into this at my last place. I'm the sort of person who
           | likes to pay things ahead so I don't have to think or worry
           | about them. I was used to paying my rent ahead and quarterly.
           | 
           | When I moved to the new place (in a western state), the
           | apartment company insisted that rent be paid _exactly_ on the
           | 1st, and paid online.
           | 
           | Not only did it not want the rent early, it was not possible
           | to pay early, as the company's online system would show a
           | zero balance, and would not show a payment mechanism.
           | 
           | Even worse -- I couldn't pay a bunch up front. It would only
           | allow payments for the exact amount due for that month.
           | 
           | Payment was also accepted by check. But only in person, and
           | with a $75 "processing" fee.
           | 
           | And this wasn't some rinky-dink neighborhood landlord. It was
           | a national apartment company with over 20,000 units in a
           | dozen states.
           | 
           | Interestingly, my new apartment has the same online system as
           | the old one, but allows me to pay however much I want as
           | often as I want. (As long as it's not late, duh.) So it
           | wasn't a technical limitation, it was management's policy.
        
             | Nextgrid wrote:
             | A lot of landlords would absolutely prefer someone who pays
             | long in advance. If I were you I would've given these guys
             | the middle finger and found a better landlord.
        
               | kelnos wrote:
               | Unfortunately you often don't find out about this policy
               | until you've signed the lease and set up your payment
               | account.
        
               | mindslight wrote:
               | Any such policy would need to be specified within the
               | lease to be enforceable. If there is nothing in your
               | lease that mandates a bespoke payment method, call their
               | bluff and just pay by check.
               | 
               | There are real issues with incomprehensible leases and
               | terms of adhesion sprung late in the process, but it
               | behooves us to keep focus on the specific contours of the
               | problem so the people who are able to push back on such
               | nonsense can better do so.
        
               | reaperducer wrote:
               | The primary reasons people choose a residence are price
               | and location. Method of payment is probably not even in
               | the top hundred reasons on the list.
        
               | mindslight wrote:
               | I'm not saying that this is the only way to push back
               | against such bullshit, or asserting that those who don't
               | push back deserve what they get or something. I'm merely
               | pointing out one avenue for fighting it, which if it
               | matters to someone that much, they might want to explore.
               | 
               | It might be important enough for you, next time. It might
               | be important for someone with similar preferences [0]
               | that has read your comment and will be on the lookout.
               | I've rejected unconscionable leases wholesale and gotten
               | simple boilerplate ones in their place. It can be done.
               | The more we openly discuss such bullshit, the less
               | prospective tenants can be surprised later on in the
               | process when such terms get sprung on them.
               | 
               | [0] really having a single day window to pay should be a
               | concern to anybody. That sounds like a shameless way of
               | creating late fees.
        
             | jackson1442 wrote:
             | Ha! My current apartment wants me to pay $19.95 to do a
             | one-time eCheck (direct debit, it's basically free on their
             | end) but allows me to drop checks in the office for free.
             | What a backwards system.
        
       | lnwlebjel wrote:
       | Patrick, how much do you read in a given day (eg. hours?) All
       | those words (and the deep knowledge they reveal) must come from
       | somewhere. And what do you read? Not just twitter I suspect.
       | 
       | This article of yours is fascinating:
       | https://bam.kalzumeus.com/archive/financial-innovation-is-ha...
       | 
       | Thanks
        
         | patio11 wrote:
         | Varies wildly by the day (and year); probably two hours at the
         | median. I have an advantage in that this sort of thing was a
         | hobby for me for 20 years and then it became very work-relevant
         | the last 5.
         | 
         | Someday I'll try to curate a reading list but in the meanwhile
         | the sort of things I read are generally the sort of things I
         | link to in essays/on Twitter/etc. Everything from WSJ to Byrne
         | Hobart's newsletter to Fed research papers to e.g. almost any
         | book that looks plausibly interesting about financial fraud
         | (best one: Lying about Money, Dan Davies).
        
           | fragmede wrote:
           | As someone who soaks up information as a sponge, there's a
           | wealth of knowledge to be gained from experts in their field,
           | interactively, and access to Slack at a fintech company
           | provides that in piles. I'm curious, how much time would you
           | say you spend on slack/how do you interact with that?
        
           | bradj wrote:
           | Have you read up about the world of commodity trading at all?
           | I imagine you'd be interested in the book The World for Sale
           | if you haven't already read it. Interesting combination of
           | market structure, fraud and geopolitics.
        
       | benatkin wrote:
       | steal money
       | 
       | FTFY
        
         | mst wrote:
         | Cost of handling cash is higher than you might expect, which
         | means that interchange fees aren't nearly as bad a deal for the
         | merchants as people think.
        
       | otterley wrote:
       | Flagging to remove unnecessary author name in title.
        
         | blyvocalfrylish wrote:
         | but... i like this author? when i see patio11 or Patrick
         | McKenzie's name in a submission title or submitter field, i
         | know that i am going to be reading some good writing today.
        
           | telotortium wrote:
           | 1. It's not general practice at HN to put the author in the
           | title, unless it _really_ changes how you interpret the
           | title. For example, you might submit _Principia Mathematica
           | (Bertrand Russell)_ if you think there 's a real risk people
           | might confuse it with _Philosophiae Naturalis Principia
           | Mathematica_ by Issac Newton.
           | 
           | 2. kalzumeus.com is patio11's personal domain, so it's even
           | less necessary to put the author in the title.
        
           | spaetzleesser wrote:
           | I think there is a risk of developing a superstar cult if the
           | authors name is in the title. I also don't like titles like
           | "Harvard scientists have found X". Suddenly the article gets
           | more credibility because if "Harvard". Although in reality
           | the big name institutions are putting out as much BS as
           | everybody else.
        
           | patio11 wrote:
           | The HN convention is for titles to generally very closely
           | track original titles unless those are
           | misleading/clickbaity/etc, and assume that HNers have the
           | domain name to author map reasonably cached.
           | 
           | (Thanks for the praise! Hope to continue earning it.)
        
           | jimbob45 wrote:
           | HN's staying power comes from its highly conservative
           | approach to website design but I agree that there are some
           | articles that would greatly benefit from having their
           | author's names attached to them.
        
           | sokoloff wrote:
           | Me too. However, including some author's names and not others
           | is inherently an editorializing decision and I'd prefer to
           | keep the editorializing out of headlines. I didn't flag it,
           | but do prefer that the original headline stays (which is "How
           | credit cards make money", not "Credit cards make money"
           | anyway)
           | 
           | In this case, the domain is a clear cue to me.
        
       | _trampeltier wrote:
       | Does anybody know excactly what data a store get about me, if I
       | buy it with a Credit or Debit card. Does someone has some example
       | data or so?
        
       | pc86 wrote:
       | Title should be "How credit cards make money"
        
         | kentonv wrote:
         | I think HN automatically removes "How" from the beginning of
         | titles, on the basis that it's superfluous or clickbait-y or
         | something.
         | 
         | I personally find this confusing, it often changes the meaning
         | of the title IMO.
        
       | sofixa wrote:
       | Generally good article, but this part bothers me:
       | 
       | > For another, this ended up being an almost peculiarly American
       | experience. In Europe, regulators were worried about the cost of
       | interchange to businesses (rather than consumers) and capped it.
       | Since issuers didn't have the margin to compete on rewards paid
       | for by interchange, they instead leaned into branding and
       | convenience, and credit cards became a smaller portion of the
       | payment mix (about 47% of electronic payments, compared to almost
       | 70% in the U.S.).
       | 
       | First, the 47% is for all types of cards, debit and credit.
       | Second in the SEPA space (at least the eurozone), wire transfers
       | are free of charge, and are frequently used(for rent, salary,
       | buying a kitchen, even between friends, at least in France),
       | which removes some of the uses for bank cards. Furthermore, bank
       | cards usually have limits, so buying expensive things (like a car
       | or kitchen) isn't necessarily straightforward, unlike a wire
       | transfer. IMHO shit prices and delays are the reason peope in the
       | US often use cheques where in the EU we'd use a wire transfer,
       | and it isn't really true that cards are less used here.
        
       | flerchin wrote:
       | I feel like folks like us, that never miss a payment, and max out
       | our rewards, are net-losses for most credit card issuers. It's
       | not clear why they don't just fire us as customers.
        
         | thebean11 wrote:
         | Depending on the issuer, you might still be net positive as
         | there's a higher chance you'll buy other products from them
         | later. Think home loans, brokerage accounts, CDs, etc.
        
         | kelnos wrote:
         | I used to think that, but I'm not sure. If we're generating
         | enough interchange/fees (or other forms of revenue that aren't
         | so obvious) for them, it might be worth it.
         | 
         | I pay $550 annually for one card, but I easily pay for that
         | (and then some) through statement credit and redeeming points.
         | The net value I get out of the card is well over $1k per year.
         | But it's not clear to me whether or not the issuer makes that
         | back via other means. Just they aren't making that back from
         | _me_. I expect card issuers are very very much aware of
         | customers just like me, and are able to financially justify my
         | existence.
        
           | criddell wrote:
           | I'm guessing your data is pretty valuable to them.
        
             | mst wrote:
             | The article disagrees with data sales being a relevant
             | factor.
        
         | ishjoh wrote:
         | In particular it's good to remember that for every dollar you
         | spend on your credit card, the credit card company is charging
         | the merchant a percentage fee, so even folks who never miss a
         | payment and max their rewards can still be very profitable
        
         | BenoitEssiambre wrote:
         | My understanding is that merchants are charged around 3% of all
         | that you purchase in interchange/surcharge while you get only
         | like 1% back in reward.
        
           | alexfrydl wrote:
           | This is definitely true but just fyi by now you should be
           | getting 2% back on everything, more if it's specific
           | categories. If you're only getting 1% and have good credit,
           | you need a new card.
        
             | jfk13 wrote:
             | Note that while this may be the case in the US, where
             | interchange fees are outrageous and therefore the cards can
             | offer such "rewards", the relevant figures may look quite
             | different in other places.
        
         | stefan_ wrote:
         | They are still an oligopoly that charges ~2% on _every
         | transaction_ for the grand cost of maintaining a bunch of
         | servers, plus whatever liquidity risk they take on by ignoring
         | all security standards introduced since the magstripe?
         | 
         | If you think you are winning on rewards, you might also believe
         | you can win long-term playing in a casino.
        
           | lotsofpulp wrote:
           | > plus whatever liquidity risk they take on by ignoring all
           | security standards introduced since the magstripe?
           | 
           | The card networks told merchants they are risking losing any
           | and all chargeback for non chip purchases a few years ago. If
           | a merchant is taking mag stripe still, that is their risk.
           | 
           | > If you think you are winning on rewards, you might also
           | believe you can win long-term playing in a casino.
           | 
           | I am definitely earning more via cash back rewards than I am
           | paying in fees. A 2% cash back card which can be had for
           | free, gets you pretty close. At 5% cash back, you're clearly
           | earning more than however much prices are inflated to pay for
           | the card processor fees.
           | 
           | And at the end of the day, I don't have the option of paying
           | 5% less at most places. So any percent cash back is a win.
        
         | chrisseaton wrote:
         | How do you square that with card issuers that require you to
         | pay in full each month, like American Express?
        
           | ceejayoz wrote:
           | Those days are long gone for American Express.
           | 
           | Only a handful of their cards - the Green/Gold/Platinum - are
           | charge cards, and they all now have "Pay Over Time" (allowing
           | a month-to-month balance on charges over $100) and "Plan It"
           | (allowing one or more charges to be put on a 3-24 month
           | payment plan with a fixed finance fee).
           | 
           | https://www.americanexpress.com/en-us/benefits/payment-
           | flexi...
           | 
           | https://www.americanexpress.com/us/credit-cards/features-
           | ben...
        
         | brummm wrote:
         | Not necessarily.
        
         | alberth wrote:
         | Issuers get higher interchange rate for customers they deem as
         | high-spenders. So while these high-spenders (who presumably
         | also pay off their bills) aren't generating interest revenue
         | for the Issuer, they are generating higher interchange revenue.
        
           | adrr wrote:
           | But the card issuer is issuing debt for 0% to these users.
           | Upwards of 60 days. That cost money to the card issuer.
        
             | drfuchs wrote:
             | The card issuer doesn't pay the merchant for a while, so
             | it's the merchant who is essentially paying the actual debt
             | interest for a few months. Ask the owner of any small
             | business where you use your card how long it takes for them
             | to actually see the money.
        
               | adrr wrote:
               | Settlement is a couple of days. If merchant is getting
               | their money later, the processor is holding the cash. I'd
               | guess to manage risk from chargebacks.
               | 
               | Merchants pay interest with the increased interchange.
               | This is why debit cards have reduced interchange. ~2% vs
               | 0.05%
        
             | WalterBright wrote:
             | I take advantage of that by using the card to pay bills
             | (that don't charge a "convenience fee" to use a CC) and try
             | to time things to get as close to the 60 days as I can.
             | 
             | It's just a long standing habit of mine.
        
               | lotsofpulp wrote:
               | That seems like a lot of trouble compared to setting up
               | auto pay for everything to save a few bucks.
        
               | WalterBright wrote:
               | Well, I did try to get my credit limit raised temporarily
               | once so I could buy a car with the card, and get the cash
               | back. The CC company refused. I pointed out how they'd
               | still be making 2% net on the transaction, which would be
               | well worth their while. This kind of pitch was above the
               | pay grade of the phone people, and I got the "there's
               | nothing I can do" garbage.
        
         | mandevil wrote:
         | The issuing banks have teams of people who are very smart, have
         | extremely accurate data down to the individual transaction,
         | access to the computers to crunch that data appropriately, and
         | spend their (working) lives on this topic. You are a dude doing
         | this in their spare time as a hobby, with access only to your
         | own set of data and not even the full set of that (e.g. you
         | don't see the interchange fees etc.)
         | 
         | I suspect that the bank is winning much more than you think on
         | your business, even if you are getting a good reward. They are
         | getting other people to pay them even more than they are paying
         | you.
         | 
         | Maximizing credit card reward can be a hobby that leads to
         | minor ROI- like investing in individual stocks it might be
         | lucrative and if you enjoy it more than golf definitely pursue
         | it. But don't think you are fleecing Bank of America or Chase
         | or whomever.
        
         | vmception wrote:
         | They just keep extending credit until they're right. It cost
         | them nothing to extend you credit and pretty much one interest
         | payment makes up for it. The perks that offset the annual fees
         | on their fee cards are just an accounting gimmick on their end.
         | "Oh cool Audible gets to print awesome revenue numbers while we
         | just pay back the customer that paid who feels like it makes
         | their annual fee worth it" and who knows what arrangement
         | behind the scenes is, shares? More targeted customer data?
         | 
         | And if you actually are spending, as you suggest, they make
         | enough from the merchants who are eating the 3% transaction
         | fee.
         | 
         | You're the data product, like every other cool free thing over
         | the last decade, and they have a sustainable business model.
         | 
         | And if you ever do have a disruption in your earnings while you
         | are floating a balance on the credit card, you've just become
         | their whale customer that is paying for the whole operation
         | with interest. By the time you default they really don't care
         | about collections because they've already made so much, they're
         | very ready to sell off the debt to some collections agency for
         | pennies. You can be the most meticulous and responsible user of
         | debt, and still have this happen to you eventually. They're
         | just the house in their credit casino and all they have to do
         | is wait.
        
           | quickthrowman wrote:
           | > And if you actually are spending, as you suggest, they make
           | enough from the merchants who are eating the 3% transaction
           | fee.
           | 
           | You mean, the customer eating the 3% fee? The merchant isn't
           | going to take the hit to their margins, the interchange fee
           | is built into the price of what you are buying.
        
         | TorKlingberg wrote:
         | They are still earning interchange, and profit from foreign
         | currency conversion rates unless you watch out for it.
         | 
         | They can also earn money from retailers to promote them to you.
         | Point hunters often end up spending extra to reach a rewards
         | threshold, which can be very profitable for the retailer. It's
         | also common to sign up for a card with great introductory
         | rewards and then keep using it for years, because you get busy
         | and forget to switch card every few months.
        
         | pessimizer wrote:
         | > It's not clear why they don't just fire us as customers.
         | 
         | They do. When they do it aggressively, it results in bad PR,
         | though.
        
         | patio11 wrote:
         | So credit card issuers are pretty sophisticated with regards to
         | this, and many of them track different user personas and use
         | them to dice up their portfolio by archetypes. The "folks like
         | us" archetype is one which is definitely tracked and goes by
         | different names at different places.
         | 
         | I express no strong opinion on whether you personally are
         | contribution margin negative for your issuer. On a portfolio
         | level though, this is extremely well studied and extremely
         | clear: that archetype is staggeringly contribution margin
         | positive. It's actually one of the best performing ones at some
         | issuers, principally because the archetype spends _a lot_ per
         | account, has negligible defaults for non-fraudulent users, and
         | therefore earns lots of interchange at favorable margins.
         | 
         | It is _possible_ , given the design of individual products,
         | that a user with close-to-optimal spending decisions is
         | contribution margin negative on individual products and
         | potentially on all accounts with a particular issuer. People
         | outside the credit card ecosystem believe this is much more
         | common than it actually happens. A lot of thought goes into the
         | design of products to decrease the likelihood of adverse use,
         | cap the damages, and encourage users who are very skilled at
         | gamesmanship to game their way to being contribution positive.
        
           | polygotdomain wrote:
           | Having sat in data presentations from credit card companies,
           | the extent of the data that credit card companies have is
           | incredibly detailed. For those customers who they don't make
           | money on from interest and fees alone, I would imagine that
           | data more than covers the difference. These customer are
           | still VERY desirable from a data perspective.
           | 
           | While there are legitimate tracking concerns, the data the
           | credit card companies capture and disseminate is incredibly
           | fascinating. You've got spending data, layered with market
           | segments, layered with location data (both on the cardholder
           | and the business side), and even time of day. Overlay all
           | that with very accessible data from the Census or ESRI, and
           | they can really tell a significant story of how money flows
           | through the modern economy. This is what's feeding the
           | internal fraud detection engines (which have gotten a lot
           | better), but there are also private institutions that are
           | more than willing to pay the credit cards a hefty sum to get
           | access to all this data.
        
           | kipchak wrote:
           | >The "folks like us" archetype is one which is definitely
           | tracked and goes by different names at different places.
           | 
           | Out of curiosity, what names does that archetype go by?
        
           | jonas21 wrote:
           | > _It is possible, given the design of individual products,
           | that a user with close-to-optimal spending decisions is
           | contribution margin negative on individual products and
           | potentially on all accounts_
           | 
           | I feel like that user is typically the sort who enjoys
           | telling anyone who will listen about how they managed to get
           | great rewards from their card. With all that free marketing,
           | the credit card issuer is probably happy to have them as a
           | customer, even if they lose a little bit of money on them.
        
             | patio11 wrote:
             | FWIW: I think technologists are far too quick to jump to "I
             | bet they want to do it for free marketing" and far too slow
             | to think "I bet they have a large team of people who does
             | almost literally nothing other than study this exact
             | question, has thought about it for hundreds of thousands
             | more hours than any credit card user has, and has a highly
             | developed technical infrastructure capable of
             | authoritatively answering it."
             | 
             | It is a curious, curious belief in the engineering
             | community that we are better at trivial math than banks
             | are. That is not a bet I would encourage people to make.
        
               | sokoloff wrote:
               | I see this pattern almost weekly with engineers (both
               | online and offline). The hubris is _fascinating_. (Full
               | disclosure: I was often guilty of this myself for the
               | first decade-plus of my career.)
        
               | Jensson wrote:
               | > It is a curious, curious belief in the engineering
               | community that we are better at trivial math than banks
               | are. That is not a bet I would encourage people to make.
               | 
               | Although sometimes people are right on that bet, disrupts
               | an entire industry and becomes billionaires. Entire
               | industries can turn a blind eye to problems that are
               | obvious to some, and later it turns out the industry
               | experts were wrong.
               | 
               | So I wont stop making simple back of the envelope
               | calculations and discuss and judge industries based on
               | that. In most cases you are wrong when you do it (which
               | you'll realize when you dig down a bit further), but
               | sometimes the industry is wrong and you really don't want
               | to miss those cases.
        
               | twic wrote:
               | Reminds me of:
               | 
               | > The entire fintech sector rules because it's tech ppl
               | looking at a 500 year old sector that accounts for 10% of
               | the economy and employs some of the smartest and most
               | ruthless people in the world and saying "You know what, I
               | bet these guys are leaving a lot of money on the table"
               | [0]
               | 
               | [0]
               | https://twitter.com/quantian1/status/1447705628521152517
        
               | jonas21 wrote:
               | Oh, I don't doubt that they have a very sophisticated
               | model for this. I'm just saying they probably take
               | customer acquisition cost into account in the model too.
               | 
               | "I bet they do it for free marketing" doesn't mean "I bet
               | they didn't do the math". It means "I bet their marketing
               | department measures everything and is good at math too."
        
             | lotsofpulp wrote:
             | Even they have their limit. I remember banks going crazy
             | with cash back for opening credit cards, and then 6 years
             | ago, Chase released Sapphire Reserve which basically gave
             | people $1,500 to $2,000 upfront, and then after that I feel
             | the churning scene significantly died down since Chase
             | ended up taking huge losses for that. My wife and I
             | basically got $3k or $4k I think for taking a few minutes
             | to fill out a credit card application.
             | 
             | I imagine all the other banks were not impressed, and ever
             | since then, you can get a few hundred dollars here and
             | there but nothing like the initial Sapphire Reserve
             | promotion came out since.
        
               | bradj wrote:
               | That is definitely still a thing. I get AMEX offers
               | regularly equivalent to $1200 in rewards.
        
               | lotsofpulp wrote:
               | It is not the same as sapphire reserve and before times.
               | Even the churning subreddit kind of died not long after.
               | The Amex ones are rewards points, and you have to play a
               | lot of games to get the value. Used to be really simple
               | to get large basically cash or cash equivalent rewards.
        
               | ValentineC wrote:
               | > _It is not the same as sapphire reserve and before
               | times._
               | 
               | If I'm not wrong, cashing out Chase Ultimate Rewards
               | points wasn't that lucrative until recently, when they
               | introduced Pay Yourself Back -- it was 1 cent per point
               | before, and is much higher now for certain categories
               | (groceries, restaurants) with Pay Yourself Back.
               | 
               | > _The Amex ones are rewards points, and you have to play
               | a lot of games to get the value._
               | 
               | For US residents, cashing out at 1.1 cents per point
               | would be opening a Charles Schwab brokerage account and
               | the linked Amex Platinum card, then "investing" the
               | points. That doesn't sound too complicated.
               | 
               | (Speaking as a non-US resident playing the game myself: I
               | do have extreme difficulty trying to get good cash value
               | for my points, since Schwab refuses to open a brokerage
               | account for me.)
        
               | lotsofpulp wrote:
               | Chase Ultimate Rewards got heavily nerfed since the
               | Sapphire Reserve release. For the first couple years, you
               | could get 1.5 cents per point for any travel (flight, car
               | rental, hotel), and the price on the chase ultimate
               | reward portal was the same you got via the actual airline
               | or car rental or hotel website (i.e. the cheapest price.)
               | 
               | Then they made it so you had to use ultimate rewards via
               | Expedia, and they bumped up all the prices, so
               | effectively your UR points lost a ton of value. Searching
               | the same flight on Expedia UR website was more expensive
               | that directly going to the airline.
               | 
               | Then I stopped following because I had already canceled
               | all my UR cards, but I assume they downgraded it even
               | further because I heard they raised fees and substituted
               | some benefits with door dash or lyft credits or
               | something.
               | 
               | > For US residents, cashing out at 1.1 cents per point
               | would be opening a Charles Schwab brokerage account and
               | the linked Amex Platinum card, then "investing" the
               | points. That doesn't sound too complicated.
               | 
               | I did not know this, but that seems okay. However, I have
               | experience with AmEx being strict on people who
               | constantly open cards for sign up bonuses.
        
               | loeg wrote:
               | Amex explicitly no longer offers me sign-up bonuses
               | because I'm not a profitable customer for them.
        
           | WalterBright wrote:
           | The term for us, who pay off their entire balance every
           | month, is "deadbeats".
        
             | kgermino wrote:
             | That's an interesting term for "profitable customer who
             | pays their debts"
        
               | WalterBright wrote:
               | I'd be much more profitable to them if I didn't pay the
               | debts, and they'd accrue the usurious interest charges.
               | 
               | I found this out (and the term) after discovering my
               | credit score was lower than I expected. With some
               | investigation, it was low because it showed I had a lot
               | of credit card debt. Paying it off each month did not
               | factor into the credit score.
        
         | downut wrote:
         | We're not rich, but we are maximally financially solid and
         | stable. I mean, I drive a 2001 truck I bought new, for cash.
         | Better half drives a newish base Prius. House is not fancy.
         | 
         | How on earth can it make sense for us to get issued two
         | $95/year CCs, as happened this year. I can use the 20% AirBnB
         | bonus to cash in $1200, each card, as happened once. We're
         | waiting on passports for the second. Edit: I've also cashed in
         | points for 12 transatlantic flights over the last 15 years, on
         | other CCs.
         | 
         | We haven't missed a CC payment in decades. I can cancel at any
         | time. We don't have that many accounts to switch, might take an
         | hour.
         | 
         | We're puzzled. But ok, we do it.
        
       | draw_down wrote:
       | Thank goodness the "How" was automatically removed from the
       | title. I was in danger of understanding it.
        
       | newhouseb wrote:
       | If you want to learn more about this space, I'd check out Payment
       | Systems in the U.S. [1] which talks about a lot of the history
       | and parties at play here.
       | 
       | It's also fun/interesting to look at the published interchange
       | rates for various classes of commerce. Here's Mastercard's:
       | https://www.mastercard.us/content/dam/public/mastercardcom/n...
       | 
       | [1] https://www.amazon.com/Payments-Systems-U-S-Third-
       | Profession...
        
       | teej wrote:
       | > It's often forgotten, but prior to credit cards, many Main
       | Street retailers like e.g. pharmacies maintained hundreds or
       | thousands of credit accounts for customers individually,
       | necessitating their own back offices, accounting, and collections
       | headache.
       | 
       | This article is a great history of how the modern credit card
       | came into being
       | https://www.washingtonpost.com/archive/lifestyle/magazine/19...
        
         | amichal wrote:
         | Our local small town cafe did this up until COVID... via a big
         | three ring binder. You could run either a credit or debt as
         | long as it was close and a couple of families i know would do
         | this so their kids could stop and get snacks without cash.
        
         | edgyquant wrote:
         | I find this ironic since now days it seems every store has its
         | own credit card. I even have a card from pep boys (and was
         | given a free oil change just to sign up.)
        
           | ishjoh wrote:
           | It's because there are white label credit cards that are
           | extremely easy to setup if you're a business and they're so
           | profitable. Not only does the store get a sale upfront which
           | a customer might not have been able to afford without it,
           | they get additional revenue when folks are slow to repay
           | their bill.
        
             | gowld wrote:
             | The store gets money when customer pays the bank interest?
        
               | jasode wrote:
               | Yes, the retailer _gets a portion_ of the interest
               | payment.
               | 
               | Example story mentioning it: https://www.nytimes.com/2017
               | /05/11/business/dealbook/retaile...
               | 
               | https://archive.md/kuW2K
        
           | jasode wrote:
           | _> it seems every store has its own credit card._
           | 
           | Fyi, vast majority of those are _co-branded_ cards which
           | means they are underwritten by a bank. Examples:
           | 
           | - Amazon VISA card is underwritten by Chase Bank
           | 
           | - Costco VISA card is underwritten by Citi Bank
           | 
           | If you look closely on the Pep Boys card, you'll see who the
           | bank issuer is.
           | 
           | It's different from the old days of mom&pop grocery stores
           | running their own ledger of customer accounts. The grocery
           | store was the actual lender of credit. With co-branded credit
           | cards, it's the bank and not the retailer that's lending
           | money for customers to buy merchandise.
        
             | lotsofpulp wrote:
             | Another popular one people do not expect is Apple credit
             | card's bank is Goldman Sachs.
        
               | kayodelycaon wrote:
               | Apple doesn't hide they partnered with Goldman Sachs.
               | 
               | https://www.apple.com/newsroom/2021/08/apple-card-and-
               | goldma...
        
               | judge2020 wrote:
               | It also explicitly shows up in credit reports as "GS
               | BANK". Had to explain that to a few friends that didn't
               | look too closely into how Apple Card worked or the fine
               | print of their credit line.
        
               | brendoelfrendo wrote:
               | The physical card even has "Goldman Sachs" laser etched
               | on the back.
        
               | kristjansson wrote:
               | It's pretty prominently branded on the physical card.
        
           | snarf21 wrote:
           | Yeah, the have someone else run it and get some of the
           | profit. At the end, Sears and JCPenney didn't make any money
           | selling goods. They only made money on the store credit card.
        
         | Scoundreller wrote:
         | As for pharmacies, it's often because insurance companies
         | didn't do online billing.
         | 
         | People would have to pay for their drugs, submit a claim by
         | mail (or drop off at their employer) and get a cheque.
         | 
         | Sometimes they could send the cheque to the pharmacy directly.
         | 
         | Sometimes the pharmacy (or dentist or whoever) would submit the
         | claim for you.
         | 
         | Credit cards reduced the necessity of this (so you're not
         | floating the cost, but the pharmacy is directly until they get
         | paid by the insureco).
         | 
         | There's still some people that will pay cash in Canada for
         | their meds and submit their receipts so they can get that 1-2%
         | in points, but that doesn't really work where drug prices
         | aren't controlled.
         | 
         | As pharmacy chains and insureco increasingly become one and the
         | same, and the insureco can take its time paying out-of-network
         | pharmacies to starve them a bit.
        
         | conductr wrote:
         | My great grandfather owned a grocery store in our town
         | somewhere around 1940s-1970s (the only one at the time). Town
         | was much smaller then but about 200,000 people now (edit: I
         | looked it up, it went from about 10K people to 200K since
         | 1940). My last name is somewhat unique in spelling and it was
         | called "$LASTNAME Grocery" so I still occasionally* get a
         | random old timer that asks me if I'm related to him. When I say
         | yes, they always respond similar "Great man. A lot of people
         | would have starved if he didn't offer credit."
         | 
         | There's a particularly interesting twist to the story that I
         | really always enjoyed. When the person I'm talking to is a POC,
         | typically black, they always also mention that he was the only
         | person in town that gave their family credit for anything. This
         | is small town Texas, still very conservative and still above
         | 75% white as is/was my family.
         | 
         | Sorry for the tangent but the discussion made me think of this
         | mildly interesting story.
         | 
         | * Has dwindled quite a lot in last decade or so. Because of the
         | time, those folks that remember the store are losing numbers
         | (but also I haven't lived there in a while either)
        
       | mattfrommars wrote:
       | The knowledge which the author has been sharing has been my
       | interest for a long time. I gave up because lack of material on
       | it. Any idea how did OP gain all these knowledge?
       | 
       | For example, I want to implement a QR payment application, think
       | like transferring money through Venmo using QR code, now Paypal
       | does it, very popular in China -- basically a payment processing
       | application but my local country - think Mexico or Peru. How does
       | one understand all the requirements to make it work?
       | 
       | It makes me wonder how did Stripe founder obtains this crucial
       | knowledge to build what they have. Payment processor or
       | integrating with banks. Same thing what Plaid is doing. If I
       | wanted to create an API to interact with a bank for my local city
       | here in the U.S., do I call up a bank teller and ask me to
       | connect me to someone who is interested in integrating their bank
       | with the world?
       | 
       | I am certain doing a CFA or master degree in finance will get you
       | no where if your goal is build what Plaid and Stripe have done.
       | Instead, you need to know big shot and have ties with them to
       | achieve success. It kind of make sense this to be true otherwise
       | an developer in India or Ukraine can build APIs ...
        
         | somethoughts wrote:
         | I think they were trying to get payments going for a startup
         | idea and were trying to get payments integrated. Or at least
         | that's the founding story.
         | 
         | "In early 2010 John and Patrick began working on Stripe
         | together. At the time Patrick was working on several side
         | projects and they debated why it was so difficult to accept
         | payments on the web. They sought to solve the problem and see
         | if it was possible to make it simple - really simple. The next
         | 6-months they played with it, showed it to friends, and saw how
         | people interacted with it, iterating along the way."
         | 
         | [1] https://www.startupgrind.com/blog/the-collison-brothers-
         | and-...
        
         | symlinkk wrote:
         | You have to know people.
        
         | Scoundreller wrote:
         | > If I wanted to create an API to interact with a bank for my
         | local city here in the U.S., do I call up a bank teller and ask
         | me to connect me to someone who is interested in integrating
         | their bank with the world?
         | 
         | I always wondered this, but when some minor crime seems to get
         | heavily investigated by police. Seems like there are avenues to
         | report something and have it taken seriously that just doesn't
         | exist for the general public calling the general number.
        
         | graeme wrote:
         | Apart from talking to people, I think he read a lot of bank
         | annual reports and spent time on forums dedicated to helping
         | people get redress from banks.
        
       | nwatson wrote:
       | Here's an SDK from Solid Finance you can use to put a bank, bank
       | accounts, customer individuals and organizations, and credit
       | cards (create cards and transact on behalf of your customers)
       | inside your app: https://www.solidfi.com/dev ... complete with
       | KYC and KYB and other regulatory concerns incorporated.
        
       | alberth wrote:
       | > "A much smaller portion of interchange goes to the credit card
       | processor, to the acquiring bank, and to the credit card network"
       | 
       | That's technically not accurate. Credit card networks do not earn
       | money from interchange [1].
       | 
       | [1] "Visa does not make money from individual transactions."
       | https://revenuesandprofits.com/how-visa-makes-money-understa...
        
         | patio11 wrote:
         | I would like to reiterate my standard disclaimer for this
         | publication but if you want to bet that I don't understand how
         | scheme fees are calculated that is a poor decision.
        
           | fragmede wrote:
           | That raises a question though: In your opinion, where/in what
           | subjects would betting against you _not_ be a poor decision?
        
             | patio11 wrote:
             | I'm less good at poker than many people's model of me
             | predicts. (Probably juuuuuust about good enough to do 2/5
             | profitably in Vegas, though I mostly play tournaments
             | because they're more fun for me.)
        
         | the_pwner224 wrote:
         | > Visa does not make money from individual transactions.
         | Instead, it earns revenues from the issuers and acquirers based
         | upon the overall payment volumes and number of transactions
         | processed.
         | 
         | Which is effectively the same thing.
        
       | Bellamy wrote:
       | Would be interesting to know if credit card companies sell data
       | and which data exactly?
        
         | gowld wrote:
         | Turn on your ad blocker and then visit
         | 
         | https://www.fastcompany.com/90490923/credit-card-companies-a...
        
       | megablast wrote:
       | Why was the title changes from "How credit cards make money"??
        
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