The global economy is floating on an ocean of credit, and a good thing too as our cartoon friend Wimpy reminds us. Without it, he would be a hungry puppy by next Tuesday and nearly seven billion world citizens would be worse off if barter, and not credit, was the oil that lubricated trade. Unlike Wimpy, early societies functioned without an exchange (money) or the promise to pay it back in the future (credit).
Growth was limited, however, because savings or investment could not be incented properly. Those that wanted to save for a rainy day had no means to express that caution; better to consume a banana or a hamburger today than to watch it rot and become worthless on Tuesday.
But money changed all of that and the ability to borrow and exchange it for repayment at some future date was the economic elixir of the ages. Shakespeare, with his admonition to “neither a borrower nor a lender be,” might have won a 17th century Pulitzer, but definitely not a Nobel Prize for economics.