Report, if you have a problem with this page“ In a basic agricultural society, it's easy enough to swap five chickens for a new dress or to pay a schoolteacher with a goat and three sacks of rice. Barter works less well in a more advanced economy. The logistical challenges of using chickens to buy books on Amazon.com would be formidable. ”
Charles Wheelan
From : Naked Economics: Undressing the Dismal Science