alt Hacker NewsSo the article shows how visa and mastercard are, by far, not the ones taking the largest fee, and the solution is to get rid of them?
Where are you going to do the transactions in your scheme? Because credit card transactions are not the same as sending money from one bank account to another. There are settlements, disputes, chargebacks, etc.
How is the central bank going to offer the same variety of products described in the article? I.e..
> Interchange fees vary dramatically based on the kind of card, category of spend, and even the metadata attached to a transaction. The network’s goal is to set fees that incentivize desired behaviors on their network, including using more secure payment methods (lowering interchange fees for merchants), or for companies to do more business spending (higher interchange fees on commercial credit cards).
Your scheme sounds like all these crypto guys who think they can replace credit cards with bitcoin transactions, as if they were the same thing
Central bank instant payment system. The US has FedNow, and has had it for almost 3 years. It costs a few pennies to move up to $10M per XML message.
Brazil's Pix costs ~$10M/year to run: https://whatispix.com/
This is much cheaper than the entire credit card ecosystem skimming ~3% off of the economy. Efficiency!
FedNow Is Live - https://news.ycombinator.com/item?id=36801491 - July 2023 (1022 comments)
Walmart is currently trialing it to save $3B-$7B a year in interchange fees. No crypto, just XML messages through a mainframe at the Federal Reserve with a 20 second SLA.
> “It surprised me,” Henry said of adoption of Walmart’s first iteration of pay-by-bank, which is available online but hasn’t been marketed to customers. “It’s certainly surpassed our expectations of the amount of customers that have registered and actually use the payment type.”
> Walmart’s upgraded pay-by-bank offering will be rolled out in 2025. The transactions will occur over bank technology provider Fiserv’s NOW Network, which integrates with The Clearing House’s Real Time Payments network and the Federal Reserve’s FedNow. Until now, large retailers hesitated to launch real time payment options because many banks were not connected to an instant settlement system, meaning their customers would not be able to use the product. NOW Network aims to connect to as many banks as possible to reach 100% of deposit accounts by combining its own network with RTP and FedNow.
Walmart Plans Instant Bank Payments, Cutting Out Card Networks - https://news.ycombinator.com/item?id=41593450 - September 2024 (3 comments)
https://news.ycombinator.com/item?id=49433164 (citations)
(as of this comment, there are 100+ instant payment systems live across the world; we should assume that all countries will eventually have an instant payment system, or integrate with someone else's)
https://www.pymnts.com/wp-content/uploads/2026/09/PYMNTS-Int... [pdf] (September 2026 revision)