Sources of water runoff include
a. farms
b. highways
c. publicly owned treatment works
d. all of the above
e. (a) and (b)only
e. (a) and (b)only
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New Keynesian theories of efficiency wages imply
a. voluntary unemployment. b. real wage rigidity. c. changes in unemployment represent changes in the natural rate of unemployment. d. market clearing in the labor market in the long-run. e. None of the above
Time series variables fail to be stationary when
A) the economy experiences severe fluctuations. B) the population regression has breaks. C) there is strong seasonal variation in the data. D) there are no trends.
An example of physical capital is a:
A. plow. B. bank loan. C. seeds. D. tree.
Economics is
a. exclusively the study of the markets for stocks and bonds b. the study of choice under conditions of scarcity c. exclusively the study of business firms d. fundamentally the same as sociology e. applicable only when scarcity is not a problem