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Evaluating merger effects

Author

Listed:
  • Genakos, Christos
  • Lamprinidis, Andreas
  • Walker, James
Abstract
This paper proposes a new algorithm with which to identify the potential effect of mergers by comparing the outcomes of interest in areas of overlap for the merging parties vis-a-vis areas of no overlap within a difference-in-differences estimation framework. Utilizing our proposed algorithm enables researchers and policymakers to perform retrospective merger evaluation studies that look at the effects of mergers on both price and non-price aspects. We demonstrate the applicability and value of our proposed methodology by examining the effects on price and product variety of four mergers of the late 1980s and the 1990s on the U.K. car market.

Suggested Citation

  • Genakos, Christos & Lamprinidis, Andreas & Walker, James, 2023. "Evaluating merger effects," LSE Research Online Documents on Economics 121325, London School of Economics and Political Science, LSE Library.
    • Handle: RePEc:ehl:lserod:121325
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    File URL: http://eprints.lse.ac.uk/121325/
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    References listed on IDEAS

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    More about this item

    Keywords

    mergers; ex post policy evaluation; automobile industry;
    All these keywords.

    JEL classification:

    • L0 - Industrial Organization - - General
    • L1 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance
    • L4 - Industrial Organization - - Antitrust Issues and Policies
    • L5 - Industrial Organization - - Regulation and Industrial Policy

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