________ is the sunk cost for a perfectly competitive firm in the short run, whether the firm produces or shuts down

Which of the following barometric indicators would be the most helpful for forecasting future sales for an industry?

a. lagging economic indicators. b. leading economic indicators. c. coincident economic indicators. d. wishful thinking e. none of the above

In the prisoner's dilemma game:

A. neither player has a dominant strategy. B. both players have a dominant strategy. C. only one player will ever have a dominant strategy. D. All of these may be true in a prisoner's dilemma game.