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7. Deriving and exploring the total expenditures curve The following graph shows total production (TP) and the level of Natural Real GDP (NRGDP) for a hypothetical economy. When Real GDP is $550 billion, consumption is $450 billion, government purchases are $55 billion, and investment is $70 billion. When Real GDP is $600 billion, consumption is $475 billion, government purchases are $55 billion, and investment is $70 billion. Use the blue line (circle symbol) to plot the economy's total expenditure function within a simplified Keynesian framework. (? NRGDP 700 675 TE 650 625 TOTAL EXPENDITURE (Billions of dollars) 600 575 550 524 ATP 500 500 525 550 575 600 625 650 675 700 REAL GDP (Billions of dollars) The economy is in equilibrium when Real GDP is . At this point, the economy is also in Which of the following did Keynes argue would be needed to move the economy to equilibrium at Natural Real GDP? Check all that apply. O An increase in government purchases A decrease in consumption O An increase in investment A decrease in government purchases