Elaine values the utility of her first cup of coffee at $1; a second cup, $.75; and a third cup, $.50. If Elaine drinks three cups of coffee for breakfast, her marginal utility is equal to

If protective import-restricting tariff are imposed by a country, in the majority of cases that nation's consumers end up

A) paying a lower price and consuming more of the good than they otherwise would. B) paying a lower price and consuming less of the good than they otherwise would. C) paying a higher price and consuming less of the good than they otherwise would. D) paying a higher price and consuming more of the good than they otherwise would.

Changes in prices of a good causes

a. Movement along the demand curve b. Movement along the supply curve c. No effect to either curve d. Both a and b