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Inefficient Diversification in Multi-market Oligopoly with Diseconomies of Scope

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  • Dixon, Huw David

Abstract

This paper considers the incentives of oligopolistic firms to diversify into technologically related markets when there are diseconomies of scope. There is a rent extraction incentive for firms to adopt flexible technologies that enable them to enter technologically related markets, thereby increasing competition. However, this strategic motive leads to inefficiency in production owing to diseconomies of scope. This paper shows that the welfare gain arising from increased competition is offset by the inefficiency in production, which may lead to lower welfare than in the case of pure monopoly. This is a counterexample to the contention that the diversification increases social welfare. Copyright 1994 by The London School of Economics and Political Science.

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  • Dixon, Huw David, 1994. "Inefficient Diversification in Multi-market Oligopoly with Diseconomies of Scope," Economica, London School of Economics and Political Science, vol. 61(242), pages 213-219, May.
    • Handle: RePEc:bla:econom:v:61:y:1994:i:242:p:213-19
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    Cited by:

    1. Alessandro Sembenelli & Davide Vannoni, 2001. "Market Structures with Multi-product Firms: Welfare Analysis and Policy Implications," Journal of Industry, Competition and Trade, Springer, vol. 1(2), pages 161-179, June.
    2. Neubauer, Silke, 1999. "Multimarket contact, collusion and the internal structure of firms," Discussion Papers, Research Unit: Market Dynamics FS IV 99-25, WZB Berlin Social Science Center.
    3. Neubauer, Silke, 1997. "Interdivisional information sharing: the strategic advantage of knowing nothing," Discussion Papers, Research Unit: Market Dynamics FS IV 97-33, WZB Berlin Social Science Center.
    4. Lucas Navarro, 2012. "Plant level evidence on product mix changes in Chilean manufacturing," The Journal of International Trade & Economic Development, Taylor & Francis Journals, vol. 21(2), pages 165-195, February.
    5. Davide Vannoni, 2000. "The diversifield firm: non formal theories versus formal models," ECONOMIA E POLITICA INDUSTRIALE, FrancoAngeli Editore, vol. 2000(106).
    6. Bouras, Adam & Bouras, David & Ajuzie, Emmanuel, 2014. "An Empirical Analysis Of The Effect Of Diversification On Financial Performance: The Case Of The Us Grocery Store Industry," Review of Applied Economics, Lincoln University, Department of Financial and Business Systems, vol. 10(1-2), January.
    7. Neubauer, Silke, 1997. "The consequences of endogenous timing for diversification strategies of multimarket firms," Discussion Papers, various Research Units FS IV 97-34, WZB Berlin Social Science Center.
    8. Nachum, Lilach, 1999. "Diversification strategies of developing country firms," Journal of International Management, Elsevier, vol. 5(2), pages 115-140.

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