“Just about every economics textbook employed today sets out the problem the same way. Historically, they note, we know that there was a time when there was no money. What must it have been like? Well, let us imagine an economy something like today’s, except with no money. That would have been decidedly inconvenient! Surely people must have invented money for the sake of efficiency.
The story of money for economists always begins with a fantasy world of barter. The problem is where to locate this fantasy in time and space”