Jerry Capital Profile picture
Not selling anything. Not investment advice. My personal but public journal. DMs open Block quickly, DM a mutual friend to unblock

Aug 30, 2021, 16 tweets

Good book, worth a read for those interested in payments.

Payments Systems in the U.S. - A Guide for the Payments Professional
amazon.com/dp/0982789742/…

Open Loop Payments System

"all of their end party customers are immediately accessible to other intermediaries participating in the payments system"

Processing, switching, settlement

Push vs. Pull Payments

Credit Risk in payments

One reason why $ADYEN doesn't do full stack acquiring for Airlines

Why only banks (until recently) could join $V $MA networks

How to solve the Chicken and Egg Problem in payments? The Government

Why ACH is different

$PYPL invented the two small microdeposits to verify account ownership

"A debit transaction may be just as profitable for $V $MA as a credit transaction - certainly not true for a bank issuer. Although $V $MA set interchange fees, they do not receive those fees - in theory, $V $MA could be fine if interchanged disappeared entirely."

Clear definition of acquiring

Why debit card use is increasing faster than credit (not the faux BNPL "kids don't like credit" narrative).

A stable coin would be preferable for cross border payments because it wouldnt involve currency conversion costs + markups

"The top ten card issuers handled over 80% of total general-purpose card purchase volume at the end of 2015"

Why wire payments will always take forever

Payments behavior is very sticky

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