Chapter 17: Externalities and the Environment
75. The marginal social benefit of good air:
declines as air quality improves.
rises as air quality improves.
remains constant as air quality improves.
initially falls but rises with higher improvement.
initially rises but becomes negative wither greater improvement.
76. The optimal level of air pollution by a firm is:
the level at which the marginal private cost of improving air quality equals zero.
the level at which the marginal social cost of improving air quality equals the marginal social benefit.
the level at which the average social cost of improving air quality equals the average social benefit.
the level at which the total social cost of improving air quality equals the total social benefit.
the level at which the marginal social cost of improving air quality is minimized.
77. When using the traditional command-and-control approach to environmental regulation, the government attempts to:
set a minimum requirement and then allows the firm to determine the most efficient method for achieving this
requirement.
determine the most efficient method for different industries.
make allowances for differences across industries and between firms.
set engineering standards that are applicable to all situations and do not recognize unique circumstances.
set a maximum requirement and then allows the individual firm the latitude of choosing the most efficient
method.
78. A tannery discovers a technology that makes it cheaper to reduce the air pollution it generates. On a graph of the
optimal level of air quality, the use of the new technology would be represented by:
a leftward shift of the marginal social cost curve.
a rightward shift of the marginal social cost curve.
movement to the right along the marginal social cost curve.
movement to the left along the marginal social cost curve.
a downward shift of the marginal social benefit curve.
79. When using the economic efficiency approach to control air and water pollution, the government:
forces each firm to produce emissions in the most cost-efficient manner irrespective of its cost structure.
offers each firm the flexibility to reduce emissions in the most cost-effective manner, given its unique cost
structure.
offers each firm the option of choosing between the cost-minimizing emission level and the profit-maximizing
emission level.
provides each firm with fixed rules for reducing pollution.
offers each firm the option of using either total cost pricing or average cost pricing when determining the
optimum emission level.