1. © 2009 Pearson Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster PART V THE CORE OF MACROECONOMIC THEORY 24 The Government and Fiscal Policy Fernando & Yvonn Quijano Prepared by:

2. CHAPTER 24 The Government and Fiscal Policy © 2009 Pearson Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 2 of 39 The Government and Fiscal Policy fiscal policy The government’s spending and taxing policies. monetary policy The behavior of the Federal Reserve concerning the nation’s money supply.

3. CHAPTER 24 The Government and Fiscal Policy © 2009 Pearson Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 3 of 39 Government in the Economy discretionary fiscal policy Changes in taxes or spending that are the result of deliberate changes in government policy. net taxes (T) Taxes paid by firms and households to the government minus transfer payments made to households by the government. disposable, or after-tax, income (Y d ) Total income minus net taxes: Y - T. Government Purchases (G), Net Taxes (T), and Disposable Income (Y d ) disposable income ≡ total income − net taxes Y d ≡ Y − T

4. CHAPTER 24 The Government and Fiscal Policy © 2009 Pearson Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 4 of 39 Government in the Economy Government Purchases (G), Net Taxes (T), and Disposable Income (Y d )  FIGURE 24.1 Adding Net Taxes (T) and Government Purchases (G) to the Circular Flow of Income

5. CHAPTER 24 The Government and Fiscal Policy © 2009 Pearson Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 5 of 39 Government in the Economy Government Purchases (G), Net Taxes (T), and Disposable Income (Y d ) When government enters the picture, the aggregate income identity gets cut into three pieces: And aggregate expenditure (AE) equals:

6. CHAPTER 24 The Government and Fiscal Policy © 2009 Pearson Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 6 of 39 Government in the Economy Government Purchases (G), Net Taxes (T), and Disposable Income (Y d ) budget deficit The difference between what a government spends and what it collects in taxes in a given period: G - T. budget deficit ≡ G − T

7. CHAPTER 24 The Government and Fiscal Policy © 2009 Pearson Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 7 of 39 Government in the Economy Government Purchases (G), Net Taxes (T), and Disposable Income (Y d ) Adding Taxes to the Consumption Function To modify our aggregate consumption function to incorporate disposable income instead of before- tax income, instead of C = a + bY, we write C = a + bY d or C = a + b(Y − T) Our consumption function now has consumption depending on disposable income instead of before-tax income.

8. CHAPTER 24 The Government and Fiscal Policy © 2009 Pearson Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 8 of 39 Government in the Economy Government Purchases (G), Net Taxes (T), and Disposable Income (Y d ) Planned Investment The government can affect investment behavior through its tax treatment of depreciation and other tax policies.

9. CHAPTER 24 The Government and Fiscal Policy © 2009 Pearson Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 9 of 39 Government in the Economy The Determination of Equilibrium Output (Income) Y = C + I + G TABLE 24.1 Finding Equilibrium for I = 100, G = 100, and T = 100 (1)(2)(3)(4)(5)(6)(7)(8)(9)(10) Output (Income) Y Net Taxes T Disposable Income Y d =Y  T Consumption Spending (C = 100 +.75 Y d ) Saving S (Y d – C) Planned Investment Spending I Government Purchases G Planned Aggregate Expenditure C + I + G Unplanned Inventory Change Y  (C + I + G) Adjustment to Disequi- librium 300100200250  50 100 450  150 Output ↑ 500100400 0100 600  100 Output ↑ 70010060055050100 750  50 Output ↑ 900100800700100 9000Equilibrium 1,1001001,000850150100 1,050+ 50 Output ↓ 1,3001001,2001,000200100 1,200+ 100 Output ↓ 1,5001001,4001,150250100 1,350+ 150 Output ↓

10. CHAPTER 24 The Government and Fiscal Policy © 2009 Pearson Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 10 of 39 Government in the Economy The Determination of Equilibrium Output (Income)  FIGURE 24.2 Finding Equilibrium Output/Income Graphically Because G and I are both fixed at 100, the aggregate expenditure function is the new consumption function displaced upward by I + G = 200. Equilibrium occurs at Y = C + I + G = 900.

11. CHAPTER 24 The Government and Fiscal Policy © 2009 Pearson Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 11 of 39 Government in the Economy The Determination of Equilibrium Output (Income) The Saving/Investment Approach to Equilibrium saving/investment approach to equilibrium: S + T = I + G To derive this, we know that in equilibrium, aggregate output (income) (Y) equals planned aggregate expenditure (AE). By definition, AE equals C + I + G; and by definition, Y equals C + S + T. Therefore, at equilibrium C + S + T = C + I + G Subtracting C from both sides leaves: S + T = I + G

12. CHAPTER 24 The Government and Fiscal Policy © 2009 Pearson Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 12 of 39 Fiscal Policy at Work: Multiplier Effects At this point, we are assuming that the government controls G and T. In this section, we will review one multiplier: Government spending multiplier

13. CHAPTER 24 The Government and Fiscal Policy © 2009 Pearson Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 13 of 39 Fiscal Policy at Work: Multiplier Effects The Government Spending Multiplier government spending multiplier The ratio of the change in the equilibrium level of output to a change in government spending.

14. CHAPTER 24 The Government and Fiscal Policy © 2009 Pearson Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 14 of 39 Fiscal Policy at Work: Multiplier Effects The Government Spending Multiplier TABLE 24.2 Finding Equilibrium After a Government Spending Increase of 50 (G Has Increased from 100 in Table 24.1 to 150 Here) (1)(2)(3)(4)(5)(6)(7)(8)(9)(10) Output (Income) Y Net Taxes T Disposable Income Y d = Y  T Consumption Spending (C = 100 +.75 Y d ) Saving S (Y d – C) Planned Investment Spending I Government Purchases G Planned Aggregate Expenditure C + I + G Unplanned Inventory Change Y  (C + I + G) Adjustment To Disequilibrium 300100200250  50 100150500  200 Output ↑ 500100400 0100150650  150 Output ↑ 70010060055050100150800  100 Output ↑ 900100800700100 150950  50 Output ↑ 1,1001001,0008501501001501,1000Equilibrium 1,3001001,2001,0002001001501,250+ 50 Output ↓

15. CHAPTER 24 The Government and Fiscal Policy © 2009 Pearson Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 15 of 39 Fiscal Policy at Work: Multiplier Effects The Government Spending Multiplier  FIGURE 24.3 The Government Spending Multiplier Increasing government spending by 50 shifts the AE function up by 50. As Y rises in response, additional consumption is generated. Overall, the equilibrium level of Y increases by 200, from 900 to 1,100.