The four-firm concentration ratio measures
A) profitability.
B) economic efficiency.
C) technological efficiency.
D) competitiveness.
D
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The economy pictured in the figure has a(n) ________ gap with a short-run equilibrium combination of inflation and output indicated by point ________. 
A. recessionary; A B. recessionary; C C. recessionary; B D. expansionary; A
The circular flow of income involves the idea that
A) the seller of a good receives exactly the same amount as the buyer spends. B) in every economic exchange one party takes advantage of the other party. C) the seller of a good receives more than the buyer spends. D) the seller of a good receives less than the buyer spends.
Which is an example of a negative externality?
A) A tornado B) A hurricane C) A flood D) All of the above. E) None of the above.
A depreciation of the U.S. dollar will result in an increase in aggregate expenditures in the country
a. True b. False Indicate whether the statement is true or false