Free Entry in a Cournot Market with Overlapping Ownership

Xavier Vives and Orestis Vravosinos

American Economic Journal: Microeconomics, 2025, vol. 17, issue 2, 292-320

Abstract: We examine the effects of overlapping ownership among existing firms deciding whether to enter a product market. We show that in most cases—and especially when overlapping ownership is already widespread—an increase in the extent of overlapping ownership will harm welfare by softening product market competition, reducing entry, and thereby (in contrast to standard results) inducing insufficient entry and magnifying the negative impact of an increase of entry costs on entry. Overlapping ownership can mostly be beneficial only under substantial increasing returns to scale, in which case industry consolidation (induced by overlapping ownership) leads to sizable cost efficiencies.

JEL-codes: D21 D24 D43 G24 G34 K21 L13 (search for similar items in EconPapers)
Date: 2025
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Related works:
Working Paper: Free entry in a Cournot market with overlapping ownership (2024)
Working Paper: Free entry in a Cournot market with overlapping ownership (2022)
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DOI: 10.1257/mic.20230331

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