How are the exchange rates determined at ATMs? I know it can fluctuate literally by the second, but I didn't know ATMs in different locations (of the same bank, at least) can offer different exchange rates.
LAX
It doesn't in the US (though fees can vary by location) ... but this is Indonesia which has a very different banking system and no free foreign exchange market. I haven't done a study on it, just what I observed as a tourist who used several ATMs and dealers; the worst rate was at the ATM at the airport. But the "shady" street traders are the best rates, so take cash if you want to save money, use ATM or credit cards for convenience.