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Dynamic Monopsony: Evidence from a French Establishment Panel


  • Fakhfakh, Fathi

    () (University of Paris 2 - ERMES)

  • FitzRoy, Felix

    () (University of St. Andrews)


This paper uses a panel of about 6000 French establishments to test some implications of the modern theory of dynamic monopsony or upward sloping labour supply curves for average firm wages. Panel estimates provide strong evidence of a much larger long run employer size - wage effect (ESWE) than found previously, while controlling for worker quality and compensating differentials with lagged wages, and for profitability (rent sharing). Employment expansion also has a positive effect on wages, providing further evidence for upward sloping labour supply (as distinct from the effect of shocks in a perfectly competitive labour market).

Suggested Citation

  • Fakhfakh, Fathi & FitzRoy, Felix, 2005. "Dynamic Monopsony: Evidence from a French Establishment Panel," IZA Discussion Papers 1622, Institute for the Study of Labor (IZA).
  • Handle: RePEc:iza:izadps:dp1622

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    References listed on IDEAS

    1. Burgess, Simon & Lane, Julia & Stevens, David, 2000. "Job Flows, Worker Flows, and Churning," Journal of Labor Economics, University of Chicago Press, vol. 18(3), pages 473-502, July.
    2. Zvi Griliches & Jacques Mairesse, 1995. "Production Functions: The Search for Identification," NBER Working Papers 5067, National Bureau of Economic Research, Inc.
    3. Arellano, Manuel & Bover, Olympia, 1995. "Another look at the instrumental variable estimation of error-components models," Journal of Econometrics, Elsevier, vol. 68(1), pages 29-51, July.
    4. John M. Abowd & Francis Kramarz & David N. Margolis, 1999. "High Wage Workers and High Wage Firms," Econometrica, Econometric Society, vol. 67(2), pages 251-334, March.
    5. Richard Blundell & Stephen Bond, 2000. "GMM Estimation with persistent panel data: an application to production functions," Econometric Reviews, Taylor & Francis Journals, vol. 19(3), pages 321-340.
    6. Blundell, Richard & Bond, Stephen, 1998. "Initial conditions and moment restrictions in dynamic panel data models," Journal of Econometrics, Elsevier, vol. 87(1), pages 115-143, August.
    7. Julia I. Lane & John C. Haltiwanger & James Spletzer, 1999. "Productivity Differences across Employers: The Roles of Employer Size, Age, and Human Capital," American Economic Review, American Economic Association, vol. 89(2), pages 94-98, May.
    8. Bond, Stephen & Bowsher, Clive & Windmeijer, Frank, 2001. "Criterion-based inference for GMM in autoregressive panel data models," Economics Letters, Elsevier, vol. 73(3), pages 379-388, December.
    9. Brown, Charles & Medoff, James, 1989. "The Employer Size-Wage Effect," Journal of Political Economy, University of Chicago Press, vol. 97(5), pages 1027-1059, October.
    10. Kenneth R. Troske & Kimberly Bayard, 1999. "Examining the Employer-Size Wage Premium in the Manufacturing, Retail Trade, and Service Industries Using Employer-Employee Matched Data," American Economic Review, American Economic Association, vol. 89(2), pages 99-103, May.
    11. Burdett, Kenneth & Mortensen, Dale T, 1998. "Wage Differentials, Employer Size, and Unemployment," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 39(2), pages 257-273, May.
    12. Bewley, Truman F., 1998. "Why not cut pay?," European Economic Review, Elsevier, vol. 42(3-5), pages 459-490, May.
    13. repec:crs:wpaper:9730 is not listed on IDEAS
    14. David G. Blanchflower & Andrew J. Oswald & Peter Sanfey, 1996. "Wages, Profits, and Rent-Sharing," The Quarterly Journal of Economics, Oxford University Press, vol. 111(1), pages 227-251.
    15. Arellano, Manuel & Honore, Bo, 2001. "Panel data models: some recent developments," Handbook of Econometrics,in: J.J. Heckman & E.E. Leamer (ed.), Handbook of Econometrics, edition 1, volume 5, chapter 53, pages 3229-3296 Elsevier.
    16. Kenneth Burdett & Dale T. Mortensen, 1989. "Equilibrium Wage Differentials and Employer Size," Discussion Papers 860, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
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    Cited by:

    1. Maritza López Novella & Salimata Sissoko, 2013. "Understanding wage determination in a multi-level bargaining system: a panel data analysis," Empirical Economics, Springer, vol. 44(2), pages 879-897, April.
    2. Giovanni Sulis, 2011. "What can monopsony explain of the gender wage differential in Italy?," International Journal of Manpower, Emerald Group Publishing, vol. 32(4), pages 446-470, July.
    3. Binnur Balkan & Semih Tumen, 2016. "Firm-Size Wage Gaps along the Formal-Informal Divide: Theory and Evidence," Industrial Relations: A Journal of Economy and Society, Wiley Blackwell, vol. 55(2), pages 235-266, April.
    4. Green, Colin & Heywood, John S. & Theodoropoulos, Nikolaos, 2017. "Employer Size and Supervisor Earnings: Evidence from Britain," GLO Discussion Paper Series 136, Global Labor Organization (GLO).
    5. Thierry Lallemand & Robert Plasman & François Rycx, 2007. "The establishment-size wage premium: evidence from European countries," Empirica, Springer;Austrian Institute for Economic Research;Austrian Economic Association, vol. 34(5), pages 427-451, December.

    More about this item


    dynamic monopsony; firm-size wage effect; labour supply;

    JEL classification:

    • C23 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - Models with Panel Data; Spatio-temporal Models
    • J30 - Labor and Demographic Economics - - Wages, Compensation, and Labor Costs - - - General
    • J31 - Labor and Demographic Economics - - Wages, Compensation, and Labor Costs - - - Wage Level and Structure; Wage Differentials

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