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单项选择题

Which of the following choices best describes the effects on consumption, investment, and net exports that would result from an increase in the price level, other factors held constant Consumption Investment Net exports ①A. Decrease Decrease Decrease ②B. Decrease Increase Increase ③C. Increase Decrease Decrease A. ① B. ②C. ③

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单项选择题An oligopoly is characterized by all of the following EXCEPT:

A. large economies of scale.
B. significant barriers to entry.
C. a large number of sellers.

单项选择题A monopolist will expand production until:

A. P = MC and the price of the product will be determined by the MC curve.
B. MR = MC and the price of the product will be determined by the demand curve.
C. P = MR and the price of the product will be determined by the ATC curve.