A change in labor productivity shifts the __________ curve and a change in the exchange rate shifts the __________ curve

In 2010, about

A) 20 percent of foreign exchange transactions involved exchanges of foreign currencies for U.S. dollars. B) 10 percent of foreign exchange transactions involved exchanges of foreign currencies for U.S. dollars. C) 30 percent of foreign exchange transactions involved exchanges of foreign currencies for U.S. dollars. D) 40 percent of foreign exchange transactions involved exchanges of foreign currencies for U.S. dollars. E) 85 percent of foreign exchange transactions involved exchanges of foreign currencies for U.S. dollars.

Marginal revenue is not equal to price for a monopolist because:

A. total revenue increases as output increases. B. the monopolist must lower the price of all units in order to sell more. C. the monopolist's demand curve is below its marginal revenue curve. D. the monopolist sets price equal to marginal cost.