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Portfolio Effects and Firm Size Distribution - Carbonated Soft Drinks

  • Patrick Paul Walsh

    (Trinity College, Dublin)

  • Ciara Whelan

    (University College Dublin)

We use rich brand level retail data to demonstrate that the firm size distribution in Carbonated Soft Drinks is mainly an outcome of the degree to which firms own a portfolio of brands across segments of the market, and not from performance within segments. In addition, while the number of firms in each segment is limited by segment size relative to sunk cost and competition in a segment, idiosyncratic firm effects make some firms more likely to participate in any given segment. This feature of the industry is the key to modelling firm size distribution in Carbonated Soft Drinks.

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File URL: http://www.esr.ie/Vol33_1WalshWhelan.pdf
File Function: First version, 2002
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Article provided by Economic and Social Studies in its journal Economic and Social Review.

Volume (Year): 33 (2002)
Issue (Month): 1 ()
Pages: 43-54

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Handle: RePEc:eso:journl:v:33:y:2002:i:1:p:43-54
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  1. Patrick Paul Walsh & Ciara Whelan, 1999. "A Rationale for Repealing the 1987 Groceries Order," The Economic and Social Review, Economic and Social Studies, vol. 30(1), pages 71-90.
  2. Bresnahan, Timothy F & Reiss, Peter C, 1991. "Entry and Competition in Concentrated Markets," Journal of Political Economy, University of Chicago Press, vol. 99(5), pages 977-1009, October.
  3. Luigi Buzzacchi & Tommaso Valletti, 1999. "Firm size distribution: testing the "independent submarkets model" in the Italian motor insurance industry," LSE Research Online Documents on Economics 6749, London School of Economics and Political Science, LSE Library.
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