Chapter 31: Q. 10 (page 708)
The table below shows the estimated annual total costs and benefits of maintaining Asian elephant populations in their natural habitat.

Short Answer
The new optimal point would be elephants.
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Chapter 31: Q. 10 (page 708)
The table below shows the estimated annual total costs and benefits of maintaining Asian elephant populations in their natural habitat.

The new optimal point would be elephants.
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Why might a low-income nation with a currently very high degree of air cleanliness view a higher pollution level created by newly relocated plants of Chinese firms as optimal?
The following table displays hypothetical annual total costs and total benefits of conserving wild tigers at several possible worldwide tiger population levels.

a. Calculate the marginal costs and benefits.
b. Given the data, what is the socially optimal world population of wild tigers?
c. Suppose that tiger farming is legalized and that this has the effect of reducing the marginal cost of tiger conservation by million for each -tiger population increment in the table. What is the new socially optimal population of wild tigers?
One possible method for reducing emissions of greenhouse gases such as carbon dioxide is to inject the gases into deep saltwater-laden rock formations, where they would be trapped for thousands of years. Suppose that the federal government provides a fixed per-unit subsidy to firms that utilize this technology in West Virginia and other locales where such rock formations are known to exist.
a. Consider the effects of the government subsidy on the production and sale of equipment that injects greenhouse gases into underground rock formations. What happens to the market clearing price of such pollution abatement equipment?
b. Who pays to achieve the results discussed in part (a)?
Contrast the roles of private and common property rights in problems such as the fates of endangered species
The following table gives hypothetical annual total costs and total benefits of maintaining alternative populations of Asian elephants.
a. Calculate the marginal costs and benefits, and draw marginalbenefit and cost schedules.
b. Given the data, what is the socially optimal world population of Asian elephants?
c. Suppose that two events occur simultaneously. Technological development allows machines to do more efficiently much of the work that elephants once did, which reduces by million the marginal benefit of maintaining the elephant population for each increment in the elephant population. In addition, new techniques for breeding, feeding, and protecting elephants reduce the marginal cost bymillion for each increment in the elephant population. What is the new socially optimal population of Asian elephants?
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