According to economic analysis, the optimal level of pollution is
A) always zero.
B) at the point at which the marginal benefits of pollution control exceed the marginal cost.
C) at the point at which the marginal benefits of pollution control are less than the marginal cost.
D) at the point at which the marginal benefits from pollution control are equal to the marginal cost.
D
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Refer to the scenario above. How will the demand for pens faced by the existing pen manufacturers in Eduland be affected if new firms enter the industry in the long run?
A) The demand faced by the existing firms will become perfectly inelastic. B) The demand faced by the existing firms will become perfectly elastic. C) The demand faced by the existing firms will increase. D) The demand faced by the existing firms will decrease.
A stock index measures the:
a. change in dividend payments of a group of stocks. b. fluctuation in the price-to-earnings ratio of each share. c. change in the trading volume in the stock exchange. d. price movements of a group of stocks. e. change in the number of enlisted companies.