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Scale Effects in Markets with Search

  • Barbara Petrongolo
  • Christopher A. Pissarides

Reduced-form tests of scale effects in markets with search, run when aggregate matching functions are estimated, may miss important scale effects at the micro level, because of the reactions of job searchers. A semi-structural model is developed and estimated on a British sample, testing for scale effects on the offer arrival rate and the wage offer distribution. When contrasting London with the rest of the country we find scale effects in wage offers. But the larger market delivers higher realized wages and not more matches, because the scale effects on matches are offset by the response of reservation wages.

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Paper provided by Centre for Economic Performance, LSE in its series CEP Discussion Papers with number dp0571.

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Date of creation: Jun 2003
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Handle: RePEc:cep:cepdps:dp0571
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  1. Brown, Charles & Medoff, James, 1989. "The Employer Size-Wage Effect," Journal of Political Economy, University of Chicago Press, vol. 97(5), pages 1027-59, October.
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  7. Bloemen, Hans G & Stancanelli, Elena G F, 2001. "Individual Wealth, Reservation Wages, and Transitions into Employment," Journal of Labor Economics, University of Chicago Press, vol. 19(2), pages 400-439, April.
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  13. Dale T. Mortensen, 1977. "Unemployment insurance and job search decisions," Industrial and Labor Relations Review, ILR Review, Cornell University, ILR School, vol. 30(4), pages 505-517, July.
  14. Berg, G.J. van den & Gorter, C., 1996. "Job search and commuting time," Serie Research Memoranda 0001, VU University Amsterdam, Faculty of Economics, Business Administration and Econometrics.
  15. Olivier Jean Blanchard & Peter A. Diamond, 1989. "The Aggregate Matching Function," NBER Working Papers 3175, National Bureau of Economic Research, Inc.
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  17. Barron, John M, 1975. "Search in the Labor Market and the Duration of Unemployment: Some Empirical Evidence," American Economic Review, American Economic Association, vol. 65(5), pages 934-42, December.
  18. repec:oup:restud:v:62:y:1995:i:2:p:263-86 is not listed on IDEAS
  19. Shapiro, Carl & Stiglitz, Joseph E, 1984. "Equilibrium Unemployment as a Worker Discipline Device," American Economic Review, American Economic Association, vol. 74(3), pages 433-44, June.
  20. Alan Manning & Jonathan Thomas, 1997. "A simple test of the shirking model," LSE Research Online Documents on Economics 20300, London School of Economics and Political Science, LSE Library.
  21. Narendranathan, W. & Stewart, M.B., 1989. "Modelling The Probability Of Leaving Unemployment: Competing Risks Models With Flexible Baseline Hazards," The Warwick Economics Research Paper Series (TWERPS) 331, University of Warwick, Department of Economics.
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