David Morgan on Financial Sense states that he was in Buenos Aires and noted that merchants accept "notes" rather than money.  Since you live in that part of the world, could you comment and explain the situation there, please.  I often wondered how in a financial meltdown when money is no longer used as a means of exchange, how people would barter.  If one has has an American eagle or Canadian maple leaf gold coin and wants to purchase something that is worth less than what the coin is worth, how would one be paid the difference?