An oligopoly is a market situation in which
A) there are many firms producing differentiated products.
B) there is a single firm producing several varieties of a product.
C) all the sellers act independently of the others.
D) there are very few sellers and they recognize their strategic dependence on one another.
D
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What happens when the Federal Reserve purchases U.S. government bonds?
A) Interest rates rise because bonds become scarcer. B) Commercial bank reserves increase. C) The national debt declines in size. D) The growth rate of the money stock falls. E) All of the above occur.
Which of the following is not possible?
a. Demand is elastic, and a decrease in price causes an increase in revenue. b. Demand is unit elastic, and a decrease in price causes an increase in revenue. c. Demand is inelastic, and an increase in price causes an increase in revenue. d. Demand is perfectly inelastic, and an increase in price causes an increase in revenue.