16. Economists have noted that comparing different countries, small differences in __________ make for large differences in _________ over several decades, assuming the same growth of population for each country. A) inflation rates; unemployment rates B) unemployment rates; economic growth rates C) economic growth rates; real GDP per capita D) tax rates; real GDP per capita

25. We note that, in economics, the term "investment" includes:

A) the purchase of a Microsoft stock. B) the purchase of gold by a businessman. C) the addition of cash to a savings account. D) any increase in business inventories.

28. We note that smaller groups are sometimes able to achieve political victories against larger groups. This is referred to as the

A) moral hazard problem. B) featherbedding problem. C) collective action problem. D) pork barrel problem.