If the total revenue received by sellers of DVDs increases by 20 percent when price increases by 10 percent, then demand for DVDs is

The real business cycle model best explains the procyclicality of the nominal money supply by

A) an unpredictable Federal Reserve. B) exogenous money. C) endogenous money. D) uncorrelated money.

Assume that you know the following cost information about Fred's widget company: Its fixed cost is $9, and its total variable cost is $6 for 1 unit; $11 for 2; $ 15 for 3; 20 for 4; and 26 for 5 . Given the above information, a. the marginal cost of the third unit is greater than the marginal cost of the first unit. b. the marginal cost of the fourth unit is the same as the marginal cost of the

second unit. c. the average variable cost of four units is the same as for three units. d. both (b) and (c) are correct.