The demand for microwaves in a certain country is given by: D = 8,000 - 30P, where P is the price of a microwave. Supply by domestic microwave producers is: S = 4,000 + 10P. If this economy opens to trade while the world price of a microwave is $50, and the government imposes a tariff of $30 per microwave, then the domestic quantity demanded will be ________ microwaves.

Given the values in the table above, if the real interest rate rises from 5 to 6, the change in household saving is ________

A) negative 0.5 B) negative 1.55 C) negative 0.45 D) 1.55 E) none of the above

The expected real cost to a firm of using an additional unit of capital during a period of time is the

A) user cost of capital. B) marginal product of capital. C) marginal cost of capital. D) opportunity cost of capital.