When the U.S. dollar appreciates,

In the long run, all of a firm's costs are variable. In this case the exit criterion for a profit-maximizing firm is to shut down if

a. price is less than average total cost. b. price is greater than average total cost. c. average revenue is greater than average fixed cost. d. average revenue is greater than marginal cost.

Suppose that today, consumers expect the price of bottled water to double in the future. Then today the bottled water's

A) demand curve will shift to the right. B) demand curve will shift to the left. C) supply curve will shift to the right. D) supply curve will shift to the left.