Over the past century, the main factor responsible for rising living standards in the United States has been productivity growth

GDP, according to the income method, is the sum of:

a. wages, rent, interest, and profits. b. consumption, gross investment, depreciation, and net exports. c. depreciation, net factor income from abroad, and indirect business taxes. d. gross investment, wages, profits, rent, and indirect business taxes. e. consumption, profits, interest, rent, and net exports.

Which of the following is true concerning interest rates on bonds?

a. The tax treatment of interest earned on municipals bonds makes the interest rate on them higher than otherwise. High default risk makes the interest rate on a bond higher than otherwise. b. The tax treatment of interest earned on municipals bonds makes the interest rate on them higher than otherwise. High default risk makes the interest rate on a bond lower than otherwise. c. The tax treatment of interest earned on municipals bonds makes the interest rate on them lower than otherwise. High default risk makes the interest rate on a bond higher than otherwise. d. The tax treatment of interest earned on municipals bonds makes the interest rate on them lower than otherwise. High default risk makes the interest rate on a bond lower than otherwise.