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An economy is operating with output $300 billion below its natural rate, and fiscal policymakers want to close this recessionary gap. The central bank agrees to adjust the money supply to hold the interest rate constant, so there is no crowding out. The marginal propensity to consume is 0.75, and the price level is completely fixed in the short-run. (a) In what direction and by how much would government spending need to change to close the recessionary gap