A Ponzi scheme can only succeed if the investors in the scheme believe that something is preventing:

When commercial banks extend loans, they are able to expand the supply of money in the United States because the U.S. has

a. a fiat supply of money. b. money that is backed by gold. c. a fractional reserve banking system. d. a system of federal deposit insurance.

Quantitative easing involves policies that are designed to:

A. directly increase the money supply by a certain amount. B. indirectly increase the money supply by decreasing interest rates. C. directly increase aggregate demand through increased government spending. D. indirectly increase aggregate demand through decreased taxes.