Which of the following are determinants of differences in income?

Find the BLS's rate of unemployment from the following data: frictional unemployment = 150, structural unemployment = 200, cyclical unemployment = 225, discouraged workers = 25, underemployed workers = 75, fully employed workers = 850, total population = 2,000

a. 17.5 percent b. 23.3 percent c. 24.6 percent d. 28.8 percent e. 38.3 percent

Public goods, as defined in economics, are a.. goods that are provided by the government b. overprovided because of their public nature c. provided efficiently in competitive markets but at too low a level d. subject to free-rider problems e. characterized by rivalry and nonexclusiveness