And once you get into grad school they teach that those nice little graphs you drew in high school and undergrad were simplifications of the real world, and whether costs are passed on or not is very dependent on the specifics of the market. And then you hit the real world and realize, it's even more complex again when the costs are felt for some subset of transactions and not others, there are multiple parties to a transaction, etc etc.
Yes, exactly. Free money from the sky is exactly it.
It's definitely not coming out of card issuers pockets, from their fat interchange fees, that they may be happy to pay due to reduced fraud and other costs. Nope, the free sky money thing is it.
So in other words, it's not 0%. Apple takes a cut.
Instead, it should be 0%.
That's how consumers would benefit. If it were 0%.
> The fee is paid by card issuers
This is a point addressed by any introductory economics class in high school.
It's called tax incidence.
https://en.m.wikipedia.org/wiki/Tax_incidence