If d is the depreciation rate and K is the capital stock, the amount of investment required to keep the economy in a steady state is given by:

An increase in real net exports leads to an increase in real GDP. Further

A) real consumption spending increases while real investment spending decreases. B) real government spending decreases to offset the increase in real net exports. C) real consumption spending and real saving increase. D) real consumption spending increases but real saving does not change.

In 1973, mainstream sources predicted that the world would run out of oil in

A) 20 years. B) 40 years. C) 100 years. D) Mainstream sources in 1973 predicted the world would never run out of oil.