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Multiple Choice: 1. c. 8. b. 15. d.<br />

2. d. 9. a. 16. c.<br />

3. d. 10. b. 17. b.<br />

4. b. 11. c. 18. a.<br />

5. d. 12. c. 19. a.<br />

6. b. 13. c. 20. c.<br />

7. d. 14. c.<br />

Problems:<br />

1. MPC = Change in consumption ÷ Change in income = $2,940 ÷ $4,200 = .70<br />

2. According to Keynesian theory, the level of Total Expenditures determines the level of Real<br />

GDP. An increase in Total Expenditures will cause an increase in Real GDP. A decrease in<br />

Total Expenditures will cause a decrease in Real GDP.<br />

3. Multiplier = 1 ÷ (1 – MPC) = 1 ÷ (1 – .667) = 1 ÷ .333 = 3<br />

Change in Real GDP = Initial change x Multiplier = $45 billion decrease x 3 = $135<br />

billion decrease<br />

4.<br />

Total<br />

Expenditures<br />

45°<br />

Real GDP<br />

FOR REVIEW ONLY - NOT FOR DISTRIBUTION<br />

TE 2<br />

TE<br />

Keynesian Economic Theory 8 - 16

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