In 1979, under the ERM, the member countries were pegged to the ECU, with a ______ band of fluctuation allowed.

A negative value for the marginal physical product would indicate that

A) the company has not yet reached the point of saturation. B) total output increased by a significant amount. C) total output decreased when the extra unit of the variable input was added. D) total output increased, but the increase was very small.

In order to minimize the net cost of pollution reduction, the level of pollution reduction (the amount of a pollutant not released into the environment) should be the level at which

A. the total cost of reducing pollution is minimized and the total benefits of reducing pollution are maximized. B. the marginal benefit of reducing pollution equals the marginal cost of reducing pollution. C. the total benefit of reducing pollution equals the total cost of reducing pollution. D. the marginal benefit of reducing pollution exceeds the marginal cost of reducing pollution by the greatest possible amount.