At Bert's Bootery, the total cost of producing twenty pairs of boots is $400 . The marginal cost of producing the twenty-first pair of boots is $83 . We can conclude that the

If Mother Teresa had spent $190,000 on a leprosarium in Calcutta, how would her purchase have directly affected U.S. GDP?

A) It would remain unchanged because the expenditure occurred outside the domestic economy. B) It would remain unchanged because Mother Teresa was not acting out of her own selfish interests. C) It would have increased by $190,000. D) It would have decreased by $190,000.

All else equal, if the demand for capital decreases and the supply of capital does not change, the equilibrium real rental cost of capital will ________ and the equilibrium quantity of capital will ________

A) increase; increase B) decrease; not change C) decrease; decrease D) not change; decrease