If the CPI was 160 in 2008 and 40 in 2005, the cost of living was:
What will be an ideal response?
four times higher
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One of the most widely followed stock indexes in the United States is the S&P 500. This index represents
A) the stock prices of the 500 most valuable firms worldwide. B) the stock prices of more than 4,000 U.S. firms. C) the stock prices of 500 large U.S. firms. D) the stock prices of 30 large U.S. corporations.
The true causal effect might not be the same in the population studied and the population of interest because
A) of differences in characteristics of the population B) of geographical differences C) the study is out of date D) all of the above
Suppose that a new invention decreases the marginal productivity of labor, shifting labor demand to the left. Such an invention would be an example of
a. labor-saving technology. b. labor-augmenting technology. c. revenue technology. d. supply-shifting technology.
A firm should make an investment only if
A. it is profitable in every year. B. the present value of the profits exceeds the present value of the costs. C. the present value of the revenues exceeds the present value of the costs. D. there are no large losses in the early years.