Do you think that because of the costs of moving banknotes back to their country of circulation, buying foreign currency banknotes could sometimes be cheaper than buying bank drafts? Could there be a seasonal pattern in exchange rates for banknotes?What steps are involved in settling a purchase made in Britain with a credit card issued by a US bank? Why do you think the spread between buy and sell rates used in credit card payments is smaller than those applying to foreign banknotes?DoestheuseofUSdollarsastheprincipalcurrencyofquotationputUSbanksatanadvantageformakingprofits?WhatmightleadtoachangeintheroleoftheUSdollarastheleadinginternationalcurrency?Whydoyouthinkthatbanksgivebidandaskrateswhendealingwitheachother?Whydonttheystatetheirintentionsastheydowhendealingwithforeignexchangebrokers