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Firm Size Distribution in Small Samples

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  • Luigi Buzzacchi
  • Tommaso M. Valletti

Abstract

Sutton (1998) has recently proposed a theoretical lower bound to firm size inequality when a market is made of several independent submarkets. His results are valid asymptotically, as the number of submarkets becomes arbitrarily large. We show that, in small samples, his results can be interpreted as a positive relationship between an index of firm size inequality and the number of submarkets. We also test this relationship in the Italian motor insurance market.

Suggested Citation

  • Luigi Buzzacchi & Tommaso M. Valletti, 2004. "Firm Size Distribution in Small Samples," Bulletin of Economic Research, Wiley Blackwell, vol. 56(4), pages 301-309, October.
    • Handle: RePEc:bla:buecrs:v:56:y:2004:i:4:p:301-309
    DOI: 10.1111/j.1467-8586.2004.00205.x
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    1. Buzzacchi, Luigi & Valletti, Tommaso M., 2006. "Firm size distribution: Testing the "independent submarkets model" in the Italian motor insurance industry," International Journal of Industrial Organization, Elsevier, vol. 24(4), pages 809-834, July.
    2. de Juan, Rebeca, 2003. "The independent submarkets model: an application to the Spanish retail banking market," International Journal of Industrial Organization, Elsevier, vol. 21(10), pages 1461-1487, December.
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    1. Buzzacchi, Luigi & Valletti, Tommaso M., 2006. "Firm size distribution: Testing the "independent submarkets model" in the Italian motor insurance industry," International Journal of Industrial Organization, Elsevier, vol. 24(4), pages 809-834, July.

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