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Market Power and Efficiency in a Search Model

  • Galenianos, Manolis
  • Kircher, Philipp
  • Virag, Gabor

We build a theoretical model to study the welfare effects and resulting policy implications of firms’ market power in a frictional labor market. Our environment has two main characteristics: wages play a role in allocating labor across firms and there is a finite number of agents. We find that the decentralized equilibrium is inefficient and that the firms’ market power results in the misallocation of workers from the high to the low-productivity firms. A minimum wage forces the low-productivity firms to increase their wage, leading them to hire even more often thereby exacerbating the inefficiencies. Moderate unemployment benefits can increase welfare because they limit firms’ market power by improving the workers’ outside option.

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Paper provided by University Library of Munich, Germany in its series MPRA Paper with number 17093.

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Date of creation: 2009
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Handle: RePEc:pra:mprapa:17093
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  1. Alan Manning, 2001. "Monopsony and the efficiency of labour market interventions," LSE Research Online Documents on Economics 20097, London School of Economics and Political Science, LSE Library.
  2. James D. Montgomery, 1991. "Equilibrium Wage Dispersion and Interindustry Wage Differentials," The Quarterly Journal of Economics, Oxford University Press, vol. 106(1), pages 163-179.
  3. Moen, Espen R, 1997. "Competitive Search Equilibrium," Journal of Political Economy, University of Chicago Press, vol. 105(2), pages 385-411, April.
  4. Shi, Shouyong, 2001. "Frictional Assignment. I. Efficiency," Journal of Economic Theory, Elsevier, vol. 98(2), pages 232-260, June.
  5. Ramon Marimon & Fabrizio Zilibotti, 1997. "Unemployment vs. mismatch of talents: Reconsidering unemployment benefits," Economics Working Papers 211, Department of Economics and Business, Universitat Pompeu Fabra.
  6. Galenianos, Manolis & Kircher, Philipp, 2009. "Directed search with multiple job applications," Journal of Economic Theory, Elsevier, vol. 144(2), pages 445-471, March.
  7. Robert Shimer & Ivan Werning, 2008. "Liquidity and Insurance for the Unemployed," American Economic Review, American Economic Association, vol. 98(5), pages 1922-42, December.
  8. David Card & Alan B. Krueger, 1993. "Minimum Wages and Employment: A Case Study of the Fast Food Industry in New Jersey and Pennsylvania," NBER Working Papers 4509, National Bureau of Economic Research, Inc.
  9. Manolis Galenianos & Philipp Kircher, 2012. "On the game-theoretic foundations of competitive search equilibrium," LSE Research Online Documents on Economics 29707, London School of Economics and Political Science, LSE Library.
  10. Philipp Kircher, 2009. "Efficiency of Simultaneous Search," Journal of Political Economy, University of Chicago Press, vol. 117(5), pages 861-913, October.
  11. James Albrecht & Pieter Gautier, 2004. "Equilibrium Directed Search with Multiple Applications," Econometric Society 2004 Latin American Meetings 330, Econometric Society.
  12. Kenneth Burdett & Shouyong Shi & Randall Wright, 2001. "Pricing and Matching with Frictions," Journal of Political Economy, University of Chicago Press, vol. 109(5), pages 1060-1085, October.
  13. Daron Acemoglu & Robert Shimer, 1999. "Efficient Unemployment Insurance," Journal of Political Economy, University of Chicago Press, vol. 107(5), pages 893-928, October.
  14. Robert Shimer, 2001. "The Assignment of Workers to Jobs In an Economy with Coordination Frictions," NBER Working Papers 8501, National Bureau of Economic Research, Inc.
  15. Michael Peters, 1998. "Limits of Exact Equilibria for Capacity Constrained Sellers with costlySearch," Working Papers peters-98-01, University of Toronto, Department of Economics.
  16. L. Kaas & P. Madden, 2006. "Minimum Wages and Welfare in a Hotelling Duopsony," The School of Economics Discussion Paper Series 0604, Economics, The University of Manchester.
  17. Alan Manning & Ted To, 2002. "Oligopsony and Monopsonistic Competition in Labor Markets," Journal of Economic Perspectives, American Economic Association, vol. 16(2), pages 155-174, Spring.
  18. Manolis Galenianos & Philipp Kircher, 2007. "Heterogeneous Firms in a Finite Directed Search Economy," PIER Working Paper Archive 07-003, Penn Institute for Economic Research, Department of Economics, University of Pennsylvania.
  19. Melvyn G. Coles & Jan Eeckhout, 2000. "Heterogeneity as a coordination device," Economics Working Papers 510, Department of Economics and Business, Universitat Pompeu Fabra.
  20. Acemoglu, Daron, 2001. "Good Jobs versus Bad Jobs," Journal of Labor Economics, University of Chicago Press, vol. 19(1), pages 1-21, January.
  21. Coles, Melvyn G. & Eeckhout, Jan, 2003. "Indeterminacy and directed search," Journal of Economic Theory, Elsevier, vol. 111(2), pages 265-276, August.
  22. Peters, Michael, 1991. "Ex Ante Price Offers in Matching Games Non-steady States," Econometrica, Econometric Society, vol. 59(5), pages 1425-54, September.
  23. Marja-Liisa Halko & Klaus Kultti & and Juha Virrankoski, 2008. "Search Direction And Wage Dispersion," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 49(1), pages 111-134, 02.
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