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Comment on "Productive Public Expenditure and Imperfect Competition with Endogenous Price Markup"

  • Costa, Luís
  • Palma, Nuno

In this note we show that the claim from Chen et al (2005) that their model generates an endogenous markup is incorrect. This is not only a nomenclature issue: using the �fixed markup which we show to be the only one consistent with the structure of the model implies the main conclusions in that paper do not hold. In particular, government expenditure in infrastructure cannot affect the business cycle in this model by deliberately changing the market structure of the economy.

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Paper provided by University Library of Munich, Germany in its series MPRA Paper with number 5143.

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Date of creation: 16 Oct 2006
Date of revision: 08 Jun 2007
Handle: RePEc:pra:mprapa:5143
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  1. Robert J. Barro & Silvana Tenreyro, 2001. "Closed and open economy models of business cycles with marked-up and sticky prices," Proceedings, Federal Reserve Bank of San Francisco, issue Jun.
  2. 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.
  3. N. Gregory Mankiw, 1987. "Imperfect Competition and the Keynesian Cross," NBER Working Papers 2386, National Bureau of Economic Research, Inc.
  4. Luís F. Costa, 2001. "Endogenous Markups and Fiscal Policy," Working Papers Department of Economics 2001/06, ISEG - School of Economics and Management, Department of Economics, University of Lisbon.
  5. Jhy-hwa Chen & Jhy-yuan Shieh & Ching-chong Lai & Juin-jen Chang, 2005. "Productive public expenditure and imperfect competition with endogenous price markup," Oxford Economic Papers, Oxford University Press, vol. 57(3), pages 522-544, July.
  6. Dixon, Huw, 1987. "A Simple Model of Imperfect Competition with Walrasian Features," Oxford Economic Papers, Oxford University Press, vol. 39(1), pages 134-60, March.
  7. Heijdra, Ben J & van der Ploeg, Frederick, 1996. "Keynesian Multipliers and the Cost of Public Funds under Monopolistic Competition," Economic Journal, Royal Economic Society, vol. 106(438), pages 1284-96, September.
  8. Richard Startz, 1989. "Monopolistic Competition as a Foundation for Keynesian Macroeconomic Models," The Quarterly Journal of Economics, Oxford University Press, vol. 104(4), pages 737-752.
  9. Julio J. Rotemberg & Michael Woodford, 1999. "The Cyclical Behavior of Prices and Costs," NBER Working Papers 6909, National Bureau of Economic Research, Inc.
  10. Devereux, Michael B & Head, Allen C & Lapham, Beverly J, 1996. "Monopolistic Competition, Increasing Returns, and the Effects of Government Spending," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 28(2), pages 233-54, May.
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