In Econland autonomous consumption equals 700, the marginal propensity to consume equals 0.80, net taxes are fixed at 50, planned investment is fixed at 100, government purchases are fixed at 100, and net exports are fixed at 40. The slope of the expenditure line is:

Consumers in a country buy only two goods, sneakers and manicures. The prices and quantities purchased by urban households are in the table above. The reference base year is 2011. For these data, the CPI for 2011 is

A) 110. B) 3. C) 145. D) 160. E) 100.

If an economy with constant returns to scale were to double its physical capital stock, its available natural resources, and its human capital, but leave the size of the labor force the same,

a. its output would stay the same and so would its productivity. b. its output and productivity would increase, but less than double. c. its output and productivity would increase by more than double. d. None of the above is correct.