Suppose that an industry consists of 10 firms, and the top 4 firms have annual sales of $2.5 million, $2 million, $1.5 million, and $1 million, respectively. If the entire industry has annual sales of $10 million, the four-firm concentration ratio is
A) 85 percent.
B) 50 percent.
C) 10 percent.
D) 70 percent.
Answer: D
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Large quantities of many products produced in the United States are exported to purchasers in other countries. Exports account for the largest share of which one of the following products produced in the United States?
What will be an ideal response?
Refer to the information provided in Figure 15.2 below to answer the question(s) that follow. 
Figure 15.2 Refer to Figure 15.2. If We Do Hair is maximizing profit as a monopolistically competitive firm, it is earning a profit of
A. $180. B. $220. C. $320. D. $480.
If relative purchasing power between the United States and Argentina is 3.22 pesos per dollar, under which circumstances would we say that the dollar is "overvalued"?
A) if the actual exchange rate between the dollar and the Argentinean peso is 3 pesos per dollar B) if the actual exchange rate between the dollar and the Argentinean peso is 4 pesos per dollar C) if the actual exchange rate between the dollar and the Argentinean peso is 3.22 pesos per dollar D) if the actual exchange rate between the dollar and the Argentinean peso is 0.22 pesos per dollar
Suppose a plaintiff hires a lawyer to represent her in a court case. The lawyer will be paid by the hour. Under this contract
A) efficiency is not achieved. B) the client bears all of the risk. C) the lawyer has an incentive to lie about his hours worked. D) All of the above.