The table above shows the demand and costs for a single-price monopolist. The maximum economic profit this firm can make equals

With everything else the same, which of the following would increase the demand for U.S. dollars in the foreign exchange market?

I. a rise in the U.S. interest rate II. a fall in interest rates in foreign countries III. a rise in the expected future exchange rate A) I only B) I and II only C) I and III only D) I, II, and III

A firm faces the following relationship between the real wage it pays and the effort exerted by its workers. The marginal product of labor for this firm is given by MPN = E (100 - N)/9

The firm will choose to pay a wage such that the effort level is A) 20. B) 24. C) 27. D) 29.