Economists generally believe that policies such as reducing barriers to trade are likely to foster economic growth

An emissions standard will work best in which of the following cases?

a. The marginal cost of pollution reduction curve is relatively flat b. The marginal cost of pollution reduction curve is relatively steep c. All firms have similar equipment and technology d. The health effects of a pollutant are relatively unknown e. Firms have very different equipment and technology

A change in which of the following variables does not cause a change in demand?

a. prices of unrelated goods b. incomes of demanders c. the number of demanders d. tastes of demanders