In the above figure, the optimal level of pollution cleanup is

The bank reserve equation is the

A) assets and liabilities of the entire banking system. B) tally sheet for sources and uses of reserves. C) M1 multiplier. D) Federal Reserve's method of determining how many government securities to purchase.

In the short run, product differentiation enables firms in monopolistically competitive markets to:

A. produce a good for which there are exact substitutes. B. produce a good which is standardized. C. price the good at marginal cost. D. earn a positive economic profit.

The United States became a debtor nation in

A. 1975. B. 1982. C. 1985. D. 1990.

Which of the following will most likely cause a decrease in the quantity of money demanded?

A. a decrease in the interest rate B. an increase in nominal income C. an increase in the interest rate D. an increase in the price level