If the real interest rate is 4 percent and the inflation rate is 3 percent, then the nominal interest rate is

In the short-run, can a firm stay in the market if its profit is negative?

A. Yes, because it may have contracts requiring it to stay open. B. No, shutting down is the best option when profits are negative. C. No, its investors will require it to shut down if it has negative profits. D. Yes, if operating minimizes its losses.

Over the past century, the main factor responsible for rising living standards in the United States has been productivity growth

a. True b. False Indicate whether the statement is true or false