if full-employment gdp is $800 billion, the marginal propensity to consume is 0.75, and the economy is currently at $600 billion in rgdp, how much in government spending would it take to move the economy back to full employment gdp? if full-employment gdp is $800 billion, the marginal propensity to consume is 0.75, and the economy is currently at $600 billion in rgdp, how much in government spending would it take to move the economy back to full employment gdp? $200 billion. $50 billion. $100 billion. $25 billion.