Question

Economics

Unit 9: Keynesian Economics - Multipliers

Name _______________________________________________________

Answer the following problems. Show ALL work for every problem.

Keep in mind the equations you learned:

Change in G x SM = Change in AE

Also recall that if you know how much AE must change by AND you know the SM, you can solve for how much G must change by.

1. MPC = .9 AE must increase by $350 billion to reach the full employment level of RGDP. Solve for the change in Government spending required to accomplish this. 2. MPC = .9 AE must decrease by $250 billion to eliminate an inflationary gap. Solve for the change in Government spending required to accomplish this. 3. MPS = .15 AE must increase by $700 million to eliminate a recessionary gap. Solve for the change in Government spending required to accomplish this. 4. MPC = .8 Government spending increases by $500 million. How much does AE increase by? 5. A recessionary gap of $18 billion exists. The SM = 4. How much must Government Spending increase by? 6. An inflationary gap exists of $20 billion. The SM = 4. How much must Government Spending DECREASE by? 7. The MPC is .75. AE must increase by $100 million. How much must Government Spending increase by?

Instead of increasing Government Spending, Congress has chosen to decrease tax rates. Use the tax multiplier (TM) to solve the following.

Change in Taxes x TM = Change in AE

8. The MPC is .75. AE must increase by $100 million. How much should the tax decrease be?

9. The MPS is .1. AE must decrease by $80 million to reduce inflation. How much should the tax INCREASE be?

10. Suppose the government wishes to eliminate an inflationary gap of $100 billion and the MPC is .60. How much must the government increase taxes by?