debit card
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FRB seeks comments on maximum interchange fee that a large debit card issuer can receive for a debit card transaction
https://www.federalreserve.gov/newsevents/pressreleases/bcreg20231025a.htm As I read this, it occurred to me that this interchange fee is an analogue of gas fees in a crypto system. The most well known cryptos (Bitcoin, Ethereum) have crazy high transaction costs, but there are numerous...