Pigou buys a house for $500,000, rents it for $2,000 per month for four years, and then sells it for $600,000. What is Pigou's per-year rate of return?

Among the factors that have a negative impact on savings in the United States is the

A) tax system. B) fact that colleges give less in financial aid to students whose families have savings. C) structure of our welfare programs. D) all of the above.

Which of the following best describes the agricultural sector for much of the 20th century and today?

A) high productivity, price elasticity of demand less than 1, income elasticity of demand greater than 1 B) low productivity, price elasticity of demand greater than 1, income elasticity of demand less than 1 C) high productivity, price elasticity of demand less than 1, income elasticity of demand less than 1 D) low productivity, price elasticity of demand less than 1, income elasticity of demand greater than 1