The long boom ended in

In which case is total expenditure in an economy NOT equal to total income?

A. if total saving is larger than total investment B. if net exports are not zero C. if inventory investment is negative D. None of the answers is correct—they are always equal.

Professor Gordon posits that the best years of U.S. growth are behind us because of four "headwinds," which are:

a. lackluster growth and poverty b. demographids and education c. debt and inequality d. a and b only e. b and c only