The idea that investment in comprehensive education in developing countries leads to permanent increases in the rate of technological progress is an example of

The Laffer curve

A) initially slopes upward as increasing tax rates lead to increasing tax revenue but eventually will slope downward as increasing tax rates lead to decreasing tax revenue. B) slopes upward throughout its range since increasing tax rates will always lead to increases in tax revenue. C) is horizontal because tax revenue is independent of the rate of interest. D) slopes downward throughout its range since increasing tax rates will always lead to decreases in tax revenue.

The change in consumption divided by a change in disposable income is called the:

a. consumption function. b. marginal propensity to consume. c. marginal propensity to spend. d. spending function. e. changing propensity to consume.