21.2 Assume that the market for rental cars (used for business purposes) is perfectly competitive with the demand for this capital input given by K= 1,500 - 25r>

and the supply given by K=75v- 500, where K represents the number of cars rented by firms and v is the rental rate per day.

a. What will be the equilibrium levels for v and i^in this market?

b. Suppose that following an oil embargo gas prices rise dramatically so that now business firms must take account of gas prices in their car rental decisions. Their demand for rental cars is now given by K= 1,700- 25y-300g, where g-is the per-gallon price of gasoline. What will be the equilibrium levels for v and ATifg-= $2?Ifg-=$3?

c. Graph your results.

d. Because the oil embargo brought about decreased demand for rental cars, what might be the implication for other capital input markets as a result? For example, employees may still need transportation, so how might the demand for mass transit be affected? Be cause businesspeople also rent cars to attend meetings, what might happen in the mar ket for phone equipment as employees drive less and use the phone more? Can you think of any other factor input markets that might be affected?