Marginal cost can be expressed as the ration of the price of labor and the Marginal Product of Labor

a. only when labor is held constant.
b. only when labor is the only variable input.
c. wether labor is held constant or not.
d. never.

b. only when labor is the only variable input.

Economics

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Which of the following will always cause a reduction in net exports?

A) an increase in domestic output B) a reduction in the real exchange rate C) a reduction in government spending D) a reduction in investment E) all of the above

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In terms of the combined total of exports plus imports, which of the following countries is the world's leading international trader by volume?

A. China B. Germany C. The United States D. Japan

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