A World Bank study suggest a strong link in Africa between governments that __________ special-interest groups and __________ rates of economic growth

Which of the following expressions must be equal to national saving for a closed economy?

a. Y - I - G - NX b. Y - C - G c. Y - I - C d. G + C - Y

In general, the optimal amount of medical care is:

A. enough to stay healthy. B. the quantity at which the total cost of the care equals its total benefit. C. as much as one can afford. D. the quantity at which the marginal cost of the care equals its marginal benefit.