The incentive to lend increases as the real rate of interest decreases

One of the most widely followed stock indexes in the United States is the Dow Jones Industrial Average. This index represents

A) the stock prices of 500 large U.S. firms. B) the stock prices of 30 large U.S. corporations. C) the stock prices of more than 4,000 U.S. firms. D) an over-the-counter market.

If a profit-maximizing firm shuts down in the short run, it must be true that before the shutdown, at all positive output levels,

a. average total cost was less than average variable cost b. fixed cost was greater than total revenue c. variable cost was greater than total revenue d. profit was zero e. total cost plus total revenue was less than profit