Securities that banks sell and agree to repurchase are known as

When entry barriers into a market are low, firms will tend to earn zero economic profit in the long run because

a. low entry barriers lead to rising costs. b. profit-seeking entrepreneurs will not enter a market when entry barriers are low. c. short-run profit attracts additional suppliers and drives down the market price. d. consumers will refuse to pay more than the cost of producing a good once they find out the producer's per-unit costs.

If bank customers decide as a group to pay off their loans and to not take out any new loans, ceteris paribus,

A. The money supply will increase. B. The money supply will decrease. C. Excess reserves will decrease. D. The money multiplier will decrease.