The amount of work time lost because of strikes has been declining fairly steadily since
A. 1950.
B. 1960.
C. 1970.
D. 1990.
C. 1970.
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When calculating the TSLS standard errors
A) you do not have to worry about heteroskedasticity, since it was eliminated in the first stage B) you can use the standard errors reported by OLS estimation of the second stage regression. C) the critical values from the standard normal table should be adjusted for the proper degrees of freedom. D) you should use heteroskedasticity-robust standard errors.
Greater and more extensive government regulations of safety standards and environmental controls will have what effect on short-run and long-run aggregate supply?
A person has a comparative advantage in an activity whenever she
A) has an absolute advantage in the activity. B) can perform the activity at a lower opportunity cost than can another person. C) can do the activity in less time than anyone else. D) can do everything better than anyone else.
According to the graph shown, if the market is in equilibrium, total surplus is area(s):
A. D + E. B. A + B + C + D + E. C. A + B + C. D. A.