In a market system, the task of assessing and managing the business risk of a firm is taken on by the firm's:

Increases in the stock of capital are the result of decreases in

A) net investment. B) depreciation. C) gross investment. D) all of the above.

After trade opens, the short run impact on the income of the specific factor that is relatively scarce will be

A) a decrease in its income. B) an increase in its income. C) no change in its income. D) indeterminate, income effects are not possible to know.