During the beginning on the global financial crisis in the United States when the effects of the crisis were mostly confined within the United States, the U. S. dollar ________ because demand for U.S. assets ________

In the short-run under perfect competition, which of the following is always true?

a. Economic profit earned by firms can be negative, zero, or positive. b. Economic profit earned by firms is always zero. c. Economic profit earned by firms can be zero or positive, but not negative. d. Economic profit earned by firms is positive, but not zero or negative.

The main function of the Federal Reserve System is to:

Control the money supply Clear checks from member banks Serve as the fiscal agent for the Federal government Set reserve requirements of banks