Coordination of economic policies among nations is a prisoner's ________ because if all countries go it alone, they will choose to ________

Identify the "oversimplified multiplier formula."

a. Multiplier = 1 divided by (1 ? change in GDP) b. Multiplier = 1 divided by (1 ? marginal propensity to consume) c. Multiplier = 1 divided by (1 ? marginal propensity to save) d. Multiplier = 1 divided by (1 ? rate of inflation)

When there are economies of scale over the relevant range of output for a monopoly, the monopoly

a. is a natural monopoly. b. is a government-granted monopoly. c. has monopoly power due to the ownership of a patent or copyright. d. has monopoly power due to the ownership of a key production resource.