[dave5104]

> By my understanding, in the US, typical merchant fees to accept a card are a flat $0.20-$0.30 transaction fee, plus 2-3% of the total dollar amount.

That's correct, generally. But those can always be negotiated. And Starbucks probably has the volume to have some negotiating power. I'd be surprised if they didn't have a lower rate.

[ukoki]

What are they negotiating against though? Wouldn't the BATNA be to not accept credit cards which be suicide for a retail company?

[JetSpiegel]

Accepting some cards and not others? That could potentially move the market, at Starbucks' scale.