The optimum level of pollution emissions
A) is zero.
B) occurs where the marginal external benefit is zero.
C) occurs where no damage to the environment is being done.
D) occurs where the marginal external benefit equals the marginal external cost.
E) occurs where the marginal external cost equals the marginal cost of abatement.
E
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Foreign direct investment in the United States declined 42 percent in the first quarter of 2009. This means that
A) people or firms in other countries reduced their building of facilities or purchases of facilities in the United States by 42 percent in the first quarter of 2009. B) people or firms in the United States reduced their purchases of stocks and bonds in foreign countries by 42 percent in the first quarter of 2009. C) people or firms in other countries reduced their purchases of stocks and bonds in the United States by 42 percent in the first quarter of 2009. D) people or firms in the United States reduced their building of facilities or purchases of facilities in foreign countries by 42 percent in the first quarter of 2009.
In a small town of 100 people, there are 10 children under 16, 10 retired people, 60 people with full-time jobs, 3 people with part-time jobs, 3 full-time students over 16, and 4 full-time homemakers. The remaining people did not have jobs, but wanted them. How many people are in the labor force of this town?
A. 63 B. 80 C. 60 D. 73