Chapter 26 Money and Inflation. Copyright © 2001 Addison Wesley Longman TM 26- 2 Money and Inflation: The Evidence “Inflation is Always and Everywhere.

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chapter 26 Money and Inflation

Copyright © 2001 Addison Wesley Longman TM Money and Inflation: The Evidence “Inflation is Always and Everywhere a Monetary Phenomenon” (M. Friedman) Evidence In every case when  high for sustained period, M growth is high Examples: 1. Latin American inflations 2. German Hyperinflation, 1921–23 Controlled experiment, particularly after 1923 invasion of Ruhr— government prints money to pay strikers,  > 1 million % Meaning of “inflation” Friedman’s statement uses definition of  as continuing, rapidly rising price level: Only then does evidence support it

Copyright © 2001 Addison Wesley Longman TM  and Money Growth in Latin America

Copyright © 2001 Addison Wesley Longman TM German Hyperinflation: 1921–23

Copyright © 2001 Addison Wesley Longman TM Response to Continually Rising M s Monetarist and Keynesian View 1.M  continually, shifts AD to right from AD 1 to AD 2 to AD 3, etc. 2.Y > Y n, wages , AS shifts from AS 1 to AS 2 to AS 3, etc. 3.P continually rises from P 1 to P 2 to P 3, etc.: i.e., have inflation

Copyright © 2001 Addison Wesley Longman TM Monetarist and Keynesian Views of  Monetarist View Only source of AD shifts and  in Figure 2 can be M s growth Keynesian View Allows for other sources of AD shifts, but same conclusion that only source of sustained high  is M s growth 1.Figure 3 shows that fiscal policy without M s growth only causes P , but not sustained  2.Figure 4 shows that supply shock does not lead to sustained 

Copyright © 2001 Addison Wesley Longman TM Response to One-Shot Increase in G G  permanently 1.AD shifts right to AD 2 2.Y > Y n, AS shifts in to AS 2 3.P  to P 2, but doesn’t keep rising

Copyright © 2001 Addison Wesley Longman TM Response to Supply Shock Negative Supply Shock 1.AS shifts in to AS 2 2.Y < Y n, wages , AS shifts back to AS 1 3.P unchanged, no 

Copyright © 2001 Addison Wesley Longman TM Cost-Push Inflation High Employment Target at Y n 1.Workers raise wages because either: want higher real wages or  e high 2.AS shifts in 3.Y < Y n, government shifts AD out 4.Workers raise wages again, and go through steps 2, 3, and 4, etc. 5.P  continually: i.e., get 

Copyright © 2001 Addison Wesley Longman TM Demand-Pull Inflation High Employment Target, Y T > Y n 1.Y = Y n < Y T, government shifts AD out 2.Y = Y T > Y n, AS shifts in 3.Y = Y n < Y T, government shifts AD out, and repeat steps 2 and 3, etc. 4.P  continually: i.e., get 

Copyright © 2001 Addison Wesley Longman TM Budget Deficits and  Government Budget Constraint DEF = G – T =  MB +  B 1. Deficit financed by bonds, no effect on MB and M s 2. Deficit not financed by bonds, MB and M s  Financing persistent budget deficit by money creation leads to sustained  1.Deficit financed by M s  leads to AD shifts out, as in Fig If deficit persists, M s  continually and get P  continually, i.e.,  as in Fig 28.2 Conclusion: Deficit  , only if it is 1.Persistent 2.Financed by money creation rather than by bonds

Copyright © 2001 Addison Wesley Longman TM Budget Deficits and  Budget deficits in other countries 1.Bond finance hard 2.Deficit likely to lead to money creation and  Budget deficits in U.S. 1.Large capital market, so can bond finance 2.Fed has choice whether to monetize deficit, but may be pressured to do so 3.Ricardian equivalence may mean no effect of budget deficits on interest rates Conclusion: Deficits do not necessarily  

Copyright © 2001 Addison Wesley Longman TM Budget Deficits and Interest Rates

Copyright © 2001 Addison Wesley Longman TM Inflation and Money Growth 1.Money and inflation relationship close until After 1980 relationship breaks down

Copyright © 2001 Addison Wesley Longman TM Government Debt to GDP 1.Debt/GDP falls 1960–80 2.Deficits can’t be source of money creation and 

Copyright © 2001 Addison Wesley Longman TM Unemployment and the Natural Rate of Unemployment High employment targets source of   U Y n 2.U > U n suggests cost-push  3.U > U n and   after 1980 result of Volcker deflation

Copyright © 2001 Addison Wesley Longman TM Activist/Nonactivist Debate Lags in Shifting AD 1.Data lag 2.Recognition lag 3.Legislative lag 4.Implementation lag 5.Effectiveness lag Case for Activist Policy: If self correcting mechanism is slow, U > U n for long time 1.Doing nothing has high cost 2.AS shift little, even after long lags in shifting AD Conclusion: Should shift AD to AD 2 to get to point 2 in Figure 11 Case for Nonactivist Policy If self correcting mechanism is fast 1.Doing nothing has low cost 2.AS shifts to AS 2 before AD shifts to AD 2 3.Sequence: 1', 1, 2', 2 in Figure 11 4.Undesirable effect: Y and P fluctuate

Copyright © 2001 Addison Wesley Longman TM Activist/Nonactivist Debate Case for nonactivist policy stronger if expectations of policy matter 1.Economy won’t stop at point 2 2.Wages , AS shifts in, Y < Y n, AD shifted out, etc.:   3.Also less likely for wage push that gets us to 1' Quite plausible that expectations of policy matter to wage setting Rules Vs Discretion 1.Nonactivists advocate policy rule to keep AD from fluctuating: Example: Monetarist constant-money-growth-rate-rule 2.Credibility of nonaccommodating policy helps avoid wage push and helps prevent  and unemployment Example: Fed had low credibility and anti-  policy was costly 2. Credibility earned by When money growth  1983, little rise in wages and 

Copyright © 2001 Addison Wesley Longman TM Choice Between Activist and Nonactivist Policy