Everybody in the west knows the fable of the grasshopper and the ant. The grasshopper is lazy and sings away the summer, while the ant piles up stores for the winter. When the cold weather comes, the grasshopper begs the ant for food. The ant refuses and the grasshopper starves. The moral of this story? Idleness brings want.

Yet life is more complex than in Aesop's fable. Today, the ants are Germans, Chinese and Japanese, while the grasshoppers are American, British, Greek, Irish and Spanish. Ants produce enticing goods grasshoppers want to buy. The latter ask whether the former want something in return. “No,” reply the ants. “You do not have anything we want, except, maybe, a spot by the sea. We will lend you the money. That way, you enjoy our goods and we accumulate stores.”

Ants and grasshoppers are happy. Being frugal and cautious, the ants deposit their surplus earnings in supposedly safe banks, which relend to grasshoppers. The latter, in turn, no longer need to make goods, since ants supply them so cheaply. But ants do not sell them houses, shopping malls or offices. So grasshoppers make these, instead. They even ask ants to come and do the work. Grasshoppers find that with all the money flowing in, the price of land rises. So they borrow more, build more and spend more.