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Multi-product firms and business cycle dynamics

  • Minniti, Antonio
  • Turino, Francesco

Recent empirical evidence provided by Bernard et al. (2010) and Broda and Weinstein (2010) shows that a significant share of product creation and destruction in U.S. industries occurs within existing firms and accounts for an important share of aggregate output. In the present paper, and consistent with this evidence, we relax the standard assumption of mono-product firms in a dynamic stochastic general equilibrium model. Our analysis is based on a model of firm dynamics with two deviations from the conventional real business cycle framework—imperfect competition with endogenous entry and multi-product firms. The combination of these two features enables our model to successfully generate a mechanism that accounts for the strong procyclicality of product creation. Due to the proliferation effect induced by firm-level adjustments in product scope, we show that our model embodies a quantitatively important magnification mechanism of aggregate shocks.

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Article provided by Elsevier in its journal European Economic Review.

Volume (Year): 57 (2013)
Issue (Month): C ()
Pages: 75-97

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Handle: RePEc:eee:eecrev:v:57:y:2013:i:c:p:75-97
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  1. Yoonsoo Lee & Toshihiko Mukoyama, 2008. "Entry, exit and plant-level dynamics over the business cycle," Working Paper 0718, Federal Reserve Bank of Cleveland.
  2. Frank Smets & Rafael Wouters, 2007. "Shocks and Frictions in US Business Cycles: A Bayesian DSGE Approach," American Economic Review, American Economic Association, vol. 97(3), pages 586-606, June.
  3. Carsten Eckel & J. Peter Neary, 2006. "Multi-product firms and flexible manufacturing in the global economy," Working Papers 200608, School of Economics, University College Dublin.
  4. Christian Broda & David E. Weinstein, 2010. "Product Creation and Destruction: Evidence and Price Implications," American Economic Review, American Economic Association, vol. 100(3), pages 691-723, June.
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  19. Volker Nocke & Stephen Yeaple, 2006. "Globalization and Endogenous Firm Scope," PIER Working Paper Archive 06-015, Penn Institute for Economic Research, Department of Economics, University of Pennsylvania.
  20. Dixit, Avinash K & Stiglitz, Joseph E, 1975. "Monopolistic Competition and Optimum Product Diversity," The Warwick Economics Research Paper Series (TWERPS) 64, University of Warwick, Department of Economics.
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  26. Cogley, Timothy & Nason, James M, 1995. "Output Dynamics in Real-Business-Cycle Models," American Economic Review, American Economic Association, vol. 85(3), pages 492-511, June.
  27. Devereux, Michael B. & Head, Allen C. & Lapham, Beverly J., 1996. "Aggregate fluctuations with increasing returns to specialization and scale," Journal of Economic Dynamics and Control, Elsevier, vol. 20(4), pages 627-656, April.
  28. Manuszak, Mark D., 2002. "Endogenous market structure and competition in the 19th century American brewing industry," International Journal of Industrial Organization, Elsevier, vol. 20(5), pages 673-692, May.
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  30. Mark D. Manuszak & Charles C. Moul, 2008. "PRICES AND ENDOGENOUS MARKET STRUCTURE IN OFFICE SUPPLY SUPERSTORES -super-," Journal of Industrial Economics, Wiley Blackwell, vol. 56(1), pages 94-112, 03.
  31. Timothy F. Bresnahan & Peter C. Reiss, 1987. "Do Entry Conditions Vary across Markets?," Brookings Papers on Economic Activity, Economic Studies Program, The Brookings Institution, vol. 18(3), pages 833-882.
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