Balance of payments refers to the balance between the imports and exports of goods and services during the same time period

If you work 4 extra hours, and the slope of the curve showing the relationship between your income and work hours is 8, your income will increase by

A) $2. B) $4. C) $12. D) $32.

Which of the following is true about labor productivity?

A) it is the amount of total factor productivity (TFP) per unit of labor B) it is more difficult to measure than TFP C) it is a more general and better measure of productivity than TFP D) all of the above E) none of the above