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Optimal Monetary Policy with Endogenous Entry and Product Variety

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  • Florin O. Bilbiie
  • Ippei Fujiwara
  • Fabio Ghironi

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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Paper provided by National Bureau of Economic Research, Inc in its series NBER Working Papers with number 17489.

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Date of creation: Oct 2011
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Publication status: published as "Optimal Monetary Policy with Endogenous Entry and Product Variety" with Florin O. Bilbiie, Ippei Fujiwara, Journal of Monetary Economics, forthcoming.
Handle: RePEc:nbr:nberwo:17489

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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. Bernardino Ad�o & Isabel Correia & Pedro Teles, 2003. "Gaps and Triangles," Review of Economic Studies, Oxford University Press, vol. 70(4), pages 699-713.
  3. Pierpaolo Benigno & Michael Woodford, 2005. "Inflation Stabilization And Welfare: The Case Of A Distorted Steady State," Journal of the European Economic Association, MIT Press, vol. 3(6), pages 1185-1236, December.
  4. Arseneau, David M. & Chugh, Sanjay K., 2008. "Optimal fiscal and monetary policy with costly wage bargaining," Journal of Monetary Economics, Elsevier, vol. 55(8), pages 1401-1414, November.
  5. Vivien Lewis, 2009. "Optimal monetary policy and firm entry," Working Paper Research 178, National Bank of Belgium.
  6. Thomas, Carlos, 2008. "Search and matching frictions and optimal monetary policy," Journal of Monetary Economics, Elsevier, vol. 55(5), pages 936-956, July.
  7. Siu, Henry E., 2004. "Optimal fiscal and monetary policy with sticky prices," Journal of Monetary Economics, Elsevier, vol. 51(3), pages 575-607, April.
  8. 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.
  9. Sanjay K. Chugh, 2006. "Optimal Fiscal and Monetary Policy with Sticky Wages and Sticky Prices," Computing in Economics and Finance 2006 228, Society for Computational Economics.
  10. 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.
  11. 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.
  12. Florin O. Bilbiie & Fabio Ghironi & Marc J. Melitz, 2007. "Monetary Policy and Business Cycles with Endogenous Entry and Product Variety," NBER Working Papers 13199, National Bureau of Economic Research, Inc.
  13. 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.
  14. 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.
  15. Ester Faia, 2009. "Oligopolistic Competition and Optimal Monetary Policy," Kiel Working Papers 1552, Kiel Institute for the World Economy.
  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. Robert J. Gordon, 2006. "The Boskin Commission Report: A Retrospective One Decade Later," NBER Working Papers 12311, National Bureau of Economic Research, Inc.
  18. Roberto M. Billi, 2007. "Optimal inflation for the U.S," Research Working Paper RWP 07-03, Federal Reserve Bank of Kansas City.
  19. Bernardino Adao, 2000. "Gaps and Triangles," Econometric Society World Congress 2000 Contributed Papers 1904, Econometric Society.
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Citations

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Cited by:
  1. 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.
  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. Matteo Cacciatore, 2013. "Trade, Unemployment, and Monetary Policy," 2013 Meeting Papers 724, Society for Economic Dynamics.
  4. 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.
  5. 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.
  6. Faia, Ester, 2012. "Oligopolistic competition and optimal monetary policy," Journal of Economic Dynamics and Control, Elsevier, vol. 36(11), pages 1760-1774.
  7. Lewis, Vivien & Poilly, Céline, 2012. "Firm entry, markups and the monetary transmission mechanism," Journal of Monetary Economics, Elsevier, vol. 59(7), pages 670-685.
  8. Henning Weber, 2012. "The Optimal Inflation Rate and Firm-Level Productivity Growth," Kiel Working Papers 1773, Kiel Institute for the World Economy.
  9. Ippei Fujiwara & Yuki Teranishi, 2013. "Financial Stability in Open Economies," CAMA Working Papers 2013-71, Centre for Applied Macroeconomic Analysis, Crawford School of Public Policy, The Australian National University.
  10. Weber, Henning, 2013. "Learning By Doing in New Firms and the Optimal Rate of Inflation," Annual Conference 2013 (Duesseldorf): Competition Policy and Regulation in a Global Economic Order 79761, Verein für Socialpolitik / German Economic Association.

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