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7. In December 2004, the oil-producing nations of OPEC began reducing output to keep prices above $40 per barrel. In doing this, OPEC was acting as a monopoly even though there was more than one producer. OPEC is a: (Points: 5)
a. cartel.
b. price taker.
c. producer in a contestable market.
d. producer in a monopolistically competitive market.


8. The difference between a perfectly competitive firm and a monopolistically competitive firm is that a monopolistically competitive firm faces a: (Points: 5)
a. horizontal demand curve and price equal the marginal cost in equilibrium.
b. horizontal demand curve and price exceeds the marginal cost in equilibrium.
c. downward-sloping demand curve and price equal the marginal cost in equilibrium.
d. downward-sloping demand curve and price exceeds the marginal cost in equilibrium.


9. Suppose an industry only has four firms and they each have 10 percent, 8 percent, 8 percent, and 6 percent of the market. The Herfindahl-Hirschman index of this market is closest to which of the following? (Points: 5)
a. 8
b. 32
c. 66
d. 264

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Joshua Stredder
Joshua StredderLv10
28 Sep 2019

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