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Optimal inflation and firms' productivity dynamics


  • Weber, Henning


Empirical data indicate that firms tend to have below-average productivity upon entry and that they tend to experience post-entry productivity growth. I present a New Keynesian model with growth in firm-specific productivity and firm turnover that captures these two phenomena. The model predicts that the optimal rate of long-run inflation is positive and equal to growth in firm-specific productivity. When linearized at positive optimal inflation, the model is observationally equivalent to the basic New Keynesian model with homogenous productivity linearized at zero inflation. Optimal stabilization policies are the same in both models, and the Taylor principle ensures determinacy in either model.

Suggested Citation

  • Weber, Henning, 2011. "Optimal inflation and firms' productivity dynamics," Kiel Working Papers 1685, Kiel Institute for the World Economy (IfW).
  • Handle: RePEc:zbw:ifwkwp:1685

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    References listed on IDEAS

    1. Michael Dotsey & Robert G. King & Alexander L. Wolman, 1999. "State-Dependent Pricing and the General Equilibrium Dynamics of Money and Output," The Quarterly Journal of Economics, Oxford University Press, vol. 114(2), pages 655-690.
    2. Martina Cecioni, 2010. "Firm entry, competitive pressures and the US inflation dynamics," Temi di discussione (Economic working papers) 773, Bank of Italy, Economic Research and International Relations Area.
    3. Michael T. Kiley, 2007. "Is Moderate-to-High Inflation Inherently Unstable?," International Journal of Central Banking, International Journal of Central Banking, vol. 3(2), pages 173-201, June.
    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. Olivier Coibion & Yuriy Gorodnichenko & Johannes Wieland, 2010. "The Optimal Inflation Rate in New Keynesian Models," Working Papers 91, Department of Economics, College of William and Mary.
    6. Andreas Hornstein & Alexander L. Wolman, 2005. "Trend inflation, firm-specific capital, and sticky prices," Economic Quarterly, Federal Reserve Bank of Richmond, issue Fall, pages 57-83.
    7. Huergo, Elena & Jaumandreu, Jordi, 2004. "Firms' age, process innovation and productivity growth," International Journal of Industrial Organization, Elsevier, vol. 22(4), pages 541-559, April.
    8. Lewis, Vivien & Poilly, Céline, 2012. "Firm entry, markups and the monetary transmission mechanism," Journal of Monetary Economics, Elsevier, vol. 59(7), pages 670-685.
    9. Kiley, Michael T, 2002. "Partial Adjustment and Staggered Price Setting," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 34(2), pages 283-298, May.
    10. Kobayashi, Teruyoshi & Muto, Ichiro, 2013. "A Note On Expectational Stability Under Nonzero Trend Inflation," Macroeconomic Dynamics, Cambridge University Press, vol. 17(03), pages 681-693, April.
    11. Marc J. Melitz, 2003. "The Impact of Trade on Intra-Industry Reallocations and Aggregate Industry Productivity," Econometrica, Econometric Society, vol. 71(6), pages 1695-1725, November.
    12. Bakhshi, Hasan & Khan, Hashmat & Burriel-Llombart, Pablo & Rudolf, Barbara, 2007. "The New Keynesian Phillips curve under trend inflation and strategic complementarity," Journal of Macroeconomics, Elsevier, vol. 29(1), pages 37-59, March.
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    Cited by:

    1. Bilbiie, Florin O. & Fujiwara, Ippei & Ghironi, Fabio, 2014. "Optimal monetary policy with endogenous entry and product variety," Journal of Monetary Economics, Elsevier, vol. 64(C), pages 1-20.

    More about this item


    Optimal long-run inflation; trend inflation; heterogenous firms;

    JEL classification:

    • E01 - Macroeconomics and Monetary Economics - - General - - - Measurement and Data on National Income and Product Accounts and Wealth; Environmental Accounts
    • E31 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Price Level; Inflation; Deflation
    • E32 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Business Fluctuations; Cycles


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