Between 1864 and 1900, the largest portion of railroad track (as a percentage of total annual construction) was laid in which region of the U.S.?
a. the Southeast
b. the Northeast
c. the Pacific Northwest
d. the Great Plains region
d. the Great Plains region
Economics
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If the four-firm concentration ratio for an industry equals 100 percent, then definitely
A) the Herfindahl-Hirschman Index (HHI) equals 10,000. B) the industry is a monopoly. C) a small number of firms are in the industry. D) there are no barriers to entry into the industry.
Economics
In the Keynesian model, to understand the determination of income and employment it is necessary to understand
A) how aggregate supply is determined. B) how aggregate demand is determined. C) how long-run aggregate supply is determined. D) how interest rates are determined.
Economics