A gift-giver's efficient number of gifts (to give to a gift-recipient) has fallen from 10 to 8. This could be because
A) the gift-giver's marginal benefit curve for giving gifts shifted down and left.
B) the gift-giver's marginal cost curve of giving gifts shifted up and left.
C) the gift-recipient "fell out" of the gift-giver's utility function.
D) a and b
E) none of the above
D
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In which of the following cases should the United States produce more noodles than it wants for its own use and trade some of those noodles to Italy in exchange for wine?
a. Americans know less than Italians know about cooking noodles. b. The United States has an absolute advantage over Italy in producing noodles. c. Italy has a comparative advantage over the United States in producing wine. d. The opportunity cost of producing a gallon of wine is the same for Italy as it is for the United States.
Which of the following is a major implication of the invisible hand concept?
a. When directed by competitive market prices, the actions of self-interested individuals will tend to promote overall economic prosperity. b. Prosperity cannot be achieved unless the selfish nature of people can be changed. c. Competition is harmful to the health of an economy because it results in wasteful duplication. d. Government-operated firms tend to have lower costs than private sector firms.
Answer the following statements true (T) or false (F)
1) The short-run aggregate supply curve is vertical and the long-run aggregate supply curve is horizontal. 2) The short-run aggregate supply curve shifts to the left when nominal wages rise in response to price level increases. 3) In the extended AD-AS model, the long-run aggregate supply curve is vertical. 4) Demand-pull inflation and cost-push inflation are identical concepts because both involve lower unemployment rates and rising prices. 5) The Phillips Curve suggests an inverse relationship between increases in the price level and the level of employment.
The demand for a good is more elastic if the
A) good is a necessity. B) good has few substitutes. C) good is narrowly defined. D) supply of the good is plentiful. E) Both answers B and C are correct.