Aggregate spending _saving__and_consumpt
- 1. 9 - 1 CopyrightMcGraw-Hill/Irwin, 2002 Private Closed Economy Consumption and Saving Nonincome Determinants of Consumption and Saving Terminology, Shifts, and Stability Investment Shifts in Investment Demand Investment Demand and Schedule Instability of Investment Equilibrium GDP Key Terms Previous Slide Next Slide End Show Building the Aggregate Expenditures Model 9C H A P T E R
- 2. 9 - 2 CopyrightMcGraw-Hill/Irwin, 2002 Private Closed Economy Consumption and Saving Nonincome Determinants of Consumption and Saving Terminology, Shifts, and Stability Investment Shifts in Investment Demand Investment Demand and Schedule Instability of Investment Equilibrium GDP Key Terms Previous Slide Next Slide End Show PRIVATE CLOSED ECONOMY Simplifications... • A Closed Economy • Defer Government & Taxes • Defer Exports and Imports • All Saving Is Personal • Net Income Abroad Is Zero •Aggregate Spending = Consumption and Investment
- 3. 9 - 3 CopyrightMcGraw-Hill/Irwin, 2002 Private Closed Economy Consumption and Saving Nonincome Determinants of Consumption and Saving Terminology, Shifts, and Stability Investment Shifts in Investment Demand Investment Demand and Schedule Instability of Investment Equilibrium GDP Key Terms Previous Slide Next Slide End Show Saving (S) = Disposable Income (DI) - Consumption (C) Households consume most of their disposable income Consumption & saving are directly related to income Consumption Schedule Saving Schedule Breakeven Income CONSUMPTION AND SAVING
- 4. 9 - 4 CopyrightMcGraw-Hill/Irwin, 2002 Private Closed Economy Consumption and Saving Nonincome Determinants of Consumption and Saving Terminology, Shifts, and Stability Investment Shifts in Investment Demand Investment Demand and Schedule Instability of Investment Equilibrium GDP Key Terms Previous Slide Next Slide End Show ConsumptionSaving o o 45 o C S Consumption schedule Saving schedule C S Disposable Income Disposable Income SAVING SAVING DISSAVING DISSAVING MPC = Slope of C MPS = Slope of S MPC + MPS = 1 CONSUMPTION AND SAVING
- 5. 9 - 5 CopyrightMcGraw-Hill/Irwin, 2002 Private Closed Economy Consumption and Saving Nonincome Determinants of Consumption and Saving Terminology, Shifts, and Stability Investment Shifts in Investment Demand Investment Demand and Schedule Instability of Investment Equilibrium GDP Key Terms Previous Slide Next Slide End Show CONSUMPTION AND SAVING APC Consumption / Disposable Income APS Saving / Disposable Income MPS Change in Saving Change in Disposable Income MPC Change in Consumption Change in Disposable Income
- 6. 9 - 6 CopyrightMcGraw-Hill/Irwin, 2002 Private Closed Economy Consumption and Saving Nonincome Determinants of Consumption and Saving Terminology, Shifts, and Stability Investment Shifts in Investment Demand Investment Demand and Schedule Instability of Investment Equilibrium GDP Key Terms Previous Slide Next Slide End Show .80 .85 .90 .95 1.0 .986 .976 .972 .940 .907 .873 .869 .842 Canada United States Netherlands United Kingdom Germany Italy Japan France GLOBAL PERSPECTIVE Average Propensities to Consume, Selected Nations, 1999 Statistical Abstract of the United States, 2000
- 7. 9 - 7 CopyrightMcGraw-Hill/Irwin, 2002 Private Closed Economy Consumption and Saving Nonincome Determinants of Consumption and Saving Terminology, Shifts, and Stability Investment Shifts in Investment Demand Investment Demand and Schedule Instability of Investment Equilibrium GDP Key Terms Previous Slide Next Slide End Show NONINCOME DETERMINANTS OF CONSUMPTION AND SAVING • Wealth • Wealth Effects • Expectations • Taxation • Household Debt
- 8. 9 - 8 CopyrightMcGraw-Hill/Irwin, 2002 Private Closed Economy Consumption and Saving Nonincome Determinants of Consumption and Saving Terminology, Shifts, and Stability Investment Shifts in Investment Demand Investment Demand and Schedule Instability of Investment Equilibrium GDP Key Terms Previous Slide Next Slide End Show • Terminology • Schedule Shifts • Stability Graphically… TERMINOLOGY, SHIFTS, & STABILITY
- 9. 9 - 9 CopyrightMcGraw-Hill/Irwin, 2002 Private Closed Economy Consumption and Saving Nonincome Determinants of Consumption and Saving Terminology, Shifts, and Stability Investment Shifts in Investment Demand Investment Demand and Schedule Instability of Investment Equilibrium GDP Key Terms Previous Slide Next Slide End Show ConsumptionSaving o o 45 o C0 S0 Disposable Income Disposable Income C1 S1 TERMINOLOGY, SHIFTS, & STABILITY Increases in Consumption Means… A Decrease In Saving
- 10. 9 - 10 CopyrightMcGraw-Hill/Irwin, 2002 Private Closed Economy Consumption and Saving Nonincome Determinants of Consumption and Saving Terminology, Shifts, and Stability Investment Shifts in Investment Demand Investment Demand and Schedule Instability of Investment Equilibrium GDP Key Terms Previous Slide Next Slide End Show ConsumptionSaving o o 45 o C0 S0 Disposable Income Disposable Income C2 S2 TERMINOLOGY, SHIFTS, & STABILITY Decreases in Consumption Means… An Increase In Saving
- 11. 9 - 11 CopyrightMcGraw-Hill/Irwin, 2002 Private Closed Economy Consumption and Saving Nonincome Determinants of Consumption and Saving Terminology, Shifts, and Stability Investment Shifts in Investment Demand Investment Demand and Schedule Instability of Investment Equilibrium GDP Key Terms Previous Slide Next Slide End Show Expected Rate of Return, r Real Interest Rate, i Inverse relationship between Investment demand and the expected rate of return INVESTMENT Graphically presented...
- 12. 9 - 12 CopyrightMcGraw-Hill/Irwin, 2002 Private Closed Economy Consumption and Saving Nonincome Determinants of Consumption and Saving Terminology, Shifts, and Stability Investment Shifts in Investment Demand Investment Demand and Schedule Instability of Investment Equilibrium GDP Key Terms Previous Slide Next Slide End Show Investment (billions of dollars) Expectedrateofreturn,r, andinterestrate,i(percents) 16 14 12 10 8 6 4 2 0 INVESTMENT DEMAND CURVE 5 10 15 20 25 30 35 40 INVESTMENT I D
- 13. 9 - 13 CopyrightMcGraw-Hill/Irwin, 2002 Private Closed Economy Consumption and Saving Nonincome Determinants of Consumption and Saving Terminology, Shifts, and Stability Investment Shifts in Investment Demand Investment Demand and Schedule Instability of Investment Equilibrium GDP Key Terms Previous Slide Next Slide End Show •Acquisition, Maintenance, and Operating Costs •Business Taxes •Technological Change •Stock of Capital Goods on Hand •Expectations SHIFTS IN INVESTMENT DEMAND
- 14. 9 - 14 CopyrightMcGraw-Hill/Irwin, 2002 Private Closed Economy Consumption and Saving Nonincome Determinants of Consumption and Saving Terminology, Shifts, and Stability Investment Shifts in Investment Demand Investment Demand and Schedule Instability of Investment Equilibrium GDP Key Terms Previous Slide Next Slide End Show GLOBAL PERSPECTIVE Gross Investment Expenditures as a Percentage of GDP, Selected Nations 40% 30% 20% 10% 0% Germany FranceUnited States CanadaMexico United Kingdom SwedenJapan South Korea Source: World Bank
- 15. 9 - 15 CopyrightMcGraw-Hill/Irwin, 2002 Private Closed Economy Consumption and Saving Nonincome Determinants of Consumption and Saving Terminology, Shifts, and Stability Investment Shifts in Investment Demand Investment Demand and Schedule Instability of Investment Equilibrium GDP Key Terms Previous Slide Next Slide End Show INVESTMENT DEMAND & SCHEDULE Expectedrateofreturn,r,and realinterestrate,i(percents) Investment (billionsofdollars)Investment (billions of dollars) 20 8 20 Real Domestic Product, GDP (billions of dollars) I D Ig Investment Demand Curve Investment Schedule 20 20
- 16. 9 - 16 CopyrightMcGraw-Hill/Irwin, 2002 Private Closed Economy Consumption and Saving Nonincome Determinants of Consumption and Saving Terminology, Shifts, and Stability Investment Shifts in Investment Demand Investment Demand and Schedule Instability of Investment Equilibrium GDP Key Terms Previous Slide Next Slide End Show •Durability of Capital and Variability of Expectations •Irregularity of Innovation •Volatility of Investment INSTABILITY OF INVESTMENT
- 17. 9 - 17 CopyrightMcGraw-Hill/Irwin, 2002 Private Closed Economy Consumption and Saving Nonincome Determinants of Consumption and Saving Terminology, Shifts, and Stability Investment Shifts in Investment Demand Investment Demand and Schedule Instability of Investment Equilibrium GDP Key Terms Previous Slide Next Slide End Show EQUILIBRIUM GDP GDP = C + Ig Real Domestic Output Aggregate Expenditures Schedule Equilibrium GDP Saving and Planned Investment are Equal •Leakage •Injection No Unplanned Changes in Inventories Actual Investment
- 18. 9 - 18 CopyrightMcGraw-Hill/Irwin, 2002 Private Closed Economy Consumption and Saving Nonincome Determinants of Consumption and Saving Terminology, Shifts, and Stability Investment Shifts in Investment Demand Investment Demand and Schedule Instability of Investment Equilibrium GDP Key Terms Previous Slide Next Slide End Show Privatespending,C+Ig(billionsofdollars) o 45 o C C + Ig Ig = $20 Billion Equilibrium Real domestic product, GDP (billions of dollars) 370 390 410 430 450 470 490 510 530 550 (C + I g = GDP) EQUILIBRIUM GDP C =$450 Billion $530 510 490 470 450 430 410 390 370
- 19. 9 - 19 CopyrightMcGraw-Hill/Irwin, 2002 Private Closed Economy Consumption and Saving Nonincome Determinants of Consumption and Saving Terminology, Shifts, and Stability Investment Shifts in Investment Demand Investment Demand and Schedule Instability of Investment Equilibrium GDP Key Terms Previous Slide Next Slide End Show Privatespending,C+Ig(billionsofdollars) o 45 o C C + Ig Ig = $20 Billion Equilibrium Real domestic product, GDP (billions of dollars) 370 390 410 430 450 470 490 510 530 550 (C + I g = GDP) EQUILIBRIUM GDP C =$450 Billion $530 510 490 470 450 430 410 390 370 Say’s Law
- 20. 9 - 20 CopyrightMcGraw-Hill/Irwin, 2002 Private Closed Economy Consumption and Saving Nonincome Determinants of Consumption and Saving Terminology, Shifts, and Stability Investment Shifts in Investment Demand Investment Demand and Schedule Instability of Investment Equilibrium GDP Key Terms Previous Slide Next Slide End Show Privatespending,C+Ig(billionsofdollars) o 45 o C C + Ig Ig = $20 Billion Equilibrium Real domestic product, GDP (billions of dollars) 370 390 410 430 450 470 490 510 530 550 (C + I g = GDP) EQUILIBRIUM GDP C =$450 Billion $530 510 490 470 450 430 410 390 370 Chapter Conclusions
- 21. • consumption schedule •saving schedule • break-even income • average propensity to consume (APC) • average propensity to save (APS) • marginal propensity to consume (MPC) • marginal propensity to save (MPS) • wealth effect • expected rate of return • real interest rate • investment demand curve • planned investment • investment schedule • aggregate expenditures schedule • equilibrium GDP • 45 degree line • leakage • injection • unplanned changes in inventories • actual investment Copyright McGraw-Hill/Irwin, 2002 ENDBACK
- 22. 9 - 22 CopyrightMcGraw-Hill/Irwin, 2002 Private Closed Economy Consumption and Saving Nonincome Determinants of Consumption and Saving Terminology, Shifts, and Stability Investment Shifts in Investment Demand Investment Demand and Schedule Instability of Investment Equilibrium GDP Key Terms Previous Slide Next Slide End Show Next... Aggregate Expenditures The Multiplier, Net Exports, and Government Chapter 10