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Inflation Persistence and the Phillips Curve Revisited

  • Marika Karanassou

    ()

    (Queen Mary, University of London and IZA)

  • Dennis J. Snower

    ()

    (Institute for World Economics, CEPR and IZA)

A major criticism against staggered nominal contracts is that they give rise to the so called "persistency puzzle" - although they generate price inertia, they cannot account for the stylised fact of inflation persistence. It is thus commonly asserted that, in the context of the new Phillips curve (NPC), inflation is a jump variable. We argue that this "persistency puzzle" is highly misleading, relying on the exogeneity of the forcing variable (e.g. output gap, marginal costs, unemployment rate) and the assumption of a zero discount rate. We show that when the discount rate is positive in a general equilibrium setting (in which real variables not only affect inflation, but are also influenced by it), standard wage-price staggering models can generate both substantial inflation persistence and a nonzero inflation-unemployment tradeoff in the long-run. This is due to frictional growth, a phenomenon that captures the interplay of nominal staggering and permanent monetary changes. We also show that the cumulative amount of inflation undershooting is associated with a downward-sloping NPC in the long-run.

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Paper provided by Queen Mary University of London, School of Economics and Finance in its series Working Papers with number 586.

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Date of creation: Feb 2007
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Handle: RePEc:qmw:qmwecw:wp586
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  1. Roberts, John M., 1997. "Is inflation sticky?," Journal of Monetary Economics, Elsevier, vol. 39(2), pages 173-196, July.
  2. Mankiw, N Gregory, 2001. "The Inexorable and Mysterious Tradeoff between Inflation and Unemployment," Economic Journal, Royal Economic Society, vol. 111(471), pages C45-61, May.
  3. Taylor, John B, 1979. "Staggered Wage Setting in a Macro Model," American Economic Review, American Economic Association, vol. 69(2), pages 108-13, May.
  4. Taylor, John B, 1980. "Aggregate Dynamics and Staggered Contracts," Journal of Political Economy, University of Chicago Press, vol. 88(1), pages 1-23, February.
  5. Marvin Goodfriend & Robert G. King, 1998. "The new neoclassical synthesis and the role of monetary policy," Working Paper 98-05, Federal Reserve Bank of Richmond.
  6. Ascari, G., 1997. "Optimizing Agents, Staggered Wages and Persistence in the Real Effects of Money Shocks," The Warwick Economics Research Paper Series (TWERPS) 486, University of Warwick, Department of Economics.
  7. Jordi Gali & Mark Gertler & J. David Lopez-Salido, 2001. "European Inflation Dynamics," NBER Working Papers 8218, National Bureau of Economic Research, Inc.
  8. Huang, Kevin X. D. & Liu, Zheng, 2001. "Production chains and general equilibrium aggregate dynamics," Journal of Monetary Economics, Elsevier, vol. 48(2), pages 437-462, October.
  9. N. Gregory Mankiw & Ricardo Reis, 2002. "Sticky Information versus Sticky Prices: A Proposal to Replace the New Keynesian Phillips Curve," The Quarterly Journal of Economics, Oxford University Press, vol. 117(4), pages 1295-1328.
  10. Taylor, John B., 1980. "Output and price stability: An international comparison," Journal of Economic Dynamics and Control, Elsevier, vol. 2(1), pages 109-132, May.
  11. Ascari, Guido, 1998. "Superneutrality Of Money In Staggered Wage-Setting Models," Macroeconomic Dynamics, Cambridge University Press, vol. 2(03), pages 383-400, September.
  12. Karanassou, Marika & Sala, Héctor & Snower, Dennis J., 2005. "A reappraisal of the inflation-unemployment tradeoff," Open Access Publications from Kiel Institute for the World Economy 3457, Kiel Institute for the World Economy (IfW).
  13. Graham, Liam & Snower, Dennis J., 2002. "The Return of the Long-Run Phillips Curve," IZA Discussion Papers 646, Institute for the Study of Labor (IZA).
  14. Roberts, John M, 1995. "New Keynesian Economics and the Phillips Curve," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 27(4), pages 975-84, November.
  15. Olivier Blanchard & Jordi Galí, 2007. "Real Wage Rigidities and the New Keynesian Model," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 39(s1), pages 35-65, 02.
  16. Lawrence J. Christiano & Martin Eichenbaum & Charles L. Evans, 2001. "Nominal rigidities and the dynamic effects of a shock to monetary policy," Proceedings, Federal Reserve Bank of San Francisco, issue Jun.
  17. Jordi Gali & Mark Gertler, 2000. "Inflation Dynamics: A Structural Econometric Analysis," NBER Working Papers 7551, National Bureau of Economic Research, Inc.
  18. Niklas J. Westelius, 2005. "Discretionary Monetary Policy and Inflation Persistence," Economics Working Paper Archive at Hunter College 424, Hunter College Department of Economics.
  19. Graham, Liam & Snower, Dennis J., 2004. "The real effects of money growth in dynamic general equilibrium," Working Paper Series 0412, European Central Bank.
  20. Jeff Fuhrer & George Moore, 1995. "Inflation Persistence," The Quarterly Journal of Economics, Oxford University Press, vol. 110(1), pages 127-159.
  21. Huang, Kevin X. D. & Liu, Zheng, 2002. "Staggered price-setting, staggered wage-setting, and business cycle persistence," Journal of Monetary Economics, Elsevier, vol. 49(2), pages 405-433, March.
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  23. Gunnar Bårdsen & Eilev S. Jansen & Ragnar Nymoen, 2002. "The Empirical (ir)Relevance of the New Keynesian Phillips Curve," Working Paper Series 2102, Department of Economics, Norwegian University of Science and Technology.
  24. repec:cup:macdyn:v:2:y:1998:i:3:p:383-400 is not listed on IDEAS
  25. Sachs, Jeffrey, 1980. "The Changing Cyclical Behavior of Wages and Prices: 1890-1976," American Economic Review, American Economic Association, vol. 70(1), pages 78-90, March.
  26. Gunnar Bardsen & Eilev S. Jansen & Ragnar Nymoen, 2004. "Econometric Evaluation of the New Keynesian Phillips Curve," Oxford Bulletin of Economics and Statistics, Department of Economics, University of Oxford, vol. 66(s1), pages 671-686, 09.
  27. Edmund Phelps, 1978. "Disinflation without recession: Adaptive guideposts and monetary policy," Review of World Economics (Weltwirtschaftliches Archiv), Springer, vol. 114(4), pages 783-809, December.
  28. Pivetta, Frederic & Reis, Ricardo, 2007. "The persistence of inflation in the United States," Journal of Economic Dynamics and Control, Elsevier, vol. 31(4), pages 1326-1358, April.
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