In a 50-firm industry, two of the smallest firms merge. Yet the 4-firm concentration ratio and the 8-firm concentration ratio did not change. All things considered, we can say that the industry has
A) moved closer to pure competition because the number of firms decreased.
B) moved farther away from competition because the number of firms decreased.
C) experienced no change in competition even though the number of firms decreased.
D) to be identified first; otherwise there is no way to tell.
B
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In the classical model, how do shifts in aggregate demand affect real GDP?
A) Real GDP will remain unchanged. B) Increases in aggregate demand increase real GDP. C) Increases in aggregate demand decrease real GDP. D) Decreases in aggregate demand increase real GDP.
Other things the same, if the expected return on U.S. assets increases, the
a. supply of dollars in the market for foreign-currency exchange shifts right. b. supply of dollars in the market for foreign-currency exchange shifts left. c. demand for dollars in the market for foreign-currency exchange shifts right d. demand for dollars in the market for foreign-currency exchange shifts left.