An In the News article is titled "Study Finds Net Gain from Pollution Rules." The optimal amount of pollution, from an economic perspective,
A. Occurs where the price equals the social marginal revenue.
B. Is zero pollution.
C. Occurs where the social marginal benefit of pollution control equals the social marginal cost.
D. Is the rate that reduces pollution costs but does not result in externalities.
Answer: C
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Automatic stabilizers refer to
A) changes in the money supply and interest rates that are intended to achieve macroeconomic policy objectives. B) the money supply and interest rates that automatically increase or decrease along with the business cycle. C) changes in federal taxes and purchases that are intended to achieve macroeconomic policy objectives. D) government spending and taxes that automatically increase or decrease along with the business cycle.
Suppose a monopoly sells to two identifiably different types of customers, A and B, who are unable to practice arbitrage. The inverse demand curve for group A is PA = 10 - QA, and the inverse demand curve for group B is PB = 18 - QB. The monopolist is able to produce the good for either type of customer at a constant marginal cost of 2, and the monopolist has no fixed costs. If the monopolist is
able to practice group price discrimination, the values of the elasticities of the two groups at the profit-maximizing prices are A) ?A = -1.25, and ?B = -1.5. B) ?A = -1.5, and ?B = -1.25. C) ?A = -0.67, and ?B = -0.8. D) ?A = -0.8, and ?B = -0.67.