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Optimal Monetary Policy with Endogenous Entry and Product Variety

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Author Info

  • Florin O. Bilbiie

    (Assistant Professor, Centre d'Economie de la Sorbonne, Maison des Sciences Economiques and CEPR (E-mail: florin.bilbiie@parisschoolofeconomics.eu))

  • Ippei Fujiwara

    (Director and Senior Economist, Financial Markets Department, Bank of Japan (E-mail: ippei.fujiwara@boj.or.jp))

  • Fabio Ghironi

    (Associate Professor, Boston College and NBER (E-mail: Fabio.Ghironi@bc.edu))

Abstract

We show that deviations from long-run stability of product prices are optimal in the presence of endogenous producer entry and product variety in a sticky-price model with monopolistic competition in which price stability would be optimal in the absence of entry. Specifically, a long-run positive (negative) rate of inflation is optimal when the benefit of variety to consumers falls short of (exceeds) the market incentives for creating that variety under flexible prices, governed by the desired markup. Plausible preference specifications and parameter values justify a long-run inflation rate of two percent or higher. Price indexation implies even larger deviations from long-run price stability. However, price stability (around this non-zero trend) is close to optimal in the short run, even in the presence of time-varying flexible-price markups that distort the allocation of resources across time and states. The central bank uses its leverage over real activity in the long run, but not in the short run. Our results point to the need for continued empirical research on the determinants of markups and investigation of the benefit of product variety to consumers.

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Bibliographic Info

Paper provided by Institute for Monetary and Economic Studies, Bank of Japan in its series IMES Discussion Paper Series with number 11-E-21.

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Date of creation: Sep 2011
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Handle: RePEc:ime:imedps:11-e-21

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Keywords: Entry; Optimal Inflation Rate; Price Stability; Product Variety; Ramsey-Optimal Monetary Policy;

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References

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  1. Faia, Ester, 2007. "Ramsey monetary policy with labour market frictions," Working Paper Series 0707, European Central Bank.
  2. Fabio Ghironi & Sanjay K. Chugh, 2011. "Optimal Fiscal Policy with Endogenous Product Variety," Boston College Working Papers in Economics 775, Boston College Department of Economics.
  3. David M. Arseneau & Sanjay K. Chugh, 2007. "Optimal fiscal and monetary policy with costly wage bargaining," International Finance Discussion Papers 893, Board of Governors of the Federal Reserve System (U.S.).
  4. Benassy, Jean-Pascal, 1991. "Monopolistic competition," Handbook of Mathematical Economics, in: W. Hildenbrand & H. Sonnenschein (ed.), Handbook of Mathematical Economics, edition 1, volume 4, chapter 37, pages 1997-2045 Elsevier.
  5. Sanjay K. Chugh, 2005. "Optimal fiscal and monetary policy with sticky wages and sticky prices," International Finance Discussion Papers 834, Board of Governors of the Federal Reserve System (U.S.).
  6. Carlos Thomas, 2006. "Search and Matching Frictions and Optimal Monetary Policy," CEP Discussion Papers dp0743, Centre for Economic Performance, LSE.
  7. Robert J. Gordon, 2006. "The Boskin Commission Report: A Retrospective One Decade Later," NBER Working Papers 12311, National Bureau of Economic Research, Inc.
  8. Florin O. Bilbiie & Fabio Ghironi & Marc J. Melitz, 2008. "Monetary Policy and Business Cycles with Endogenous Entry and Product Variety," NBER Chapters, in: NBER Macroeconomics Annual 2007, Volume 22, pages 299-353 National Bureau of Economic Research, Inc.
  9. Florin Bilbiie & Fabio Ghironi & Marc J. Melitz, 2007. "Endogenous Entry, Product Variety, and Business Cycles," NBER Working Papers 13646, National Bureau of Economic Research, Inc.
  10. Michael Woodford & Pierpaolo Benigno, 2004. "Inflation Stabilization and Welfare: The Case of a Distorted Steady State," 2004 Meeting Papers 481, Society for Economic Dynamics.
  11. Faia, Ester, 2012. "Oligopolistic competition and optimal monetary policy," Journal of Economic Dynamics and Control, Elsevier, vol. 36(11), pages 1760-1774.
  12. KIM, Jinill & RUGE-MURCIA, Francisco J., 2007. "How Much Inflation is Necessary to Grease the Wheels?," Cahiers de recherche 11-2007, Centre interuniversitaire de recherche en économie quantitative, CIREQ.
  13. Bernardino Adão & Isabel Horta Correia & Pedro Teles, 2001. "Gaps and Triangles," Working Papers w200102, Banco de Portugal, Economics and Research Department.
  14. V. Lewis, 2009. "Optimal Monetary Policy and Firm Entry," Working Papers of Faculty of Economics and Business Administration, Ghent University, Belgium 09/604, Ghent University, Faculty of Economics and Business Administration.
  15. Isabel Correia & Juan Pablo Nicolini & Pedro Teles, 2008. "Optimal Fiscal and Monetary Policy: Equivalence Results," Journal of Political Economy, University of Chicago Press, vol. 116(1), pages 141-170, 02.
  16. Florin O. Bilbiie & Fabio Ghironi & Marc J. Melitz, 2008. "Monopoly Power and Endogenous Product Variety: Distortions and Remedies," NBER Working Papers 14383, National Bureau of Economic Research, Inc.
  17. Roberto M. Billi, 2007. "Optimal inflation for the U.S," Research Working Paper RWP 07-03, Federal Reserve Bank of Kansas City.
  18. Siu, Henry E., 2004. "Optimal fiscal and monetary policy with sticky prices," Journal of Monetary Economics, Elsevier, vol. 51(3), pages 575-607, April.
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Citations

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Cited by:
  1. Faia, Ester, 2012. "Oligopolistic competition and optimal monetary policy," Journal of Economic Dynamics and Control, Elsevier, vol. 36(11), pages 1760-1774.
  2. Cacciatore, Matteo & Fiori, Giuseppe & Ghironi, Fabio, 2013. "Market Deregulation and Optimal Monetary Policy in a Monetary Union," CEPR Discussion Papers 9742, C.E.P.R. Discussion Papers.
  3. Masashige Hamano & Pierre M. Picard, 2013. "Extensive and intensive margins and the choice of exchange rate regimes," CREA Discussion Paper Series 13-18, Center for Research in Economic Analysis, University of Luxembourg.
  4. Fabio Ghironi & Sanjay K. Chugh, 2010. "Optimal Fiscal Policy with Endogenous Product Variety," 2010 Meeting Papers 812, Society for Economic Dynamics.
  5. Lewis, Vivien & Poilly, Céline, 2012. "Firm entry, markups and the monetary transmission mechanism," Journal of Monetary Economics, Elsevier, vol. 59(7), pages 670-685.
  6. Henning Weber, 2012. "The Optimal Inflation Rate and Firm-Level Productivity Growth," Kiel Working Papers 1773, Kiel Institute for the World Economy.

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