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Journal of Financial Economics Vol. 139 No. 1 2021

Common ownership and competition in product markets

Andrew Koch1; Marios Panayides2; Shawn Thomas1

1 University of Pittsburgh · 2 University of Cyprus

Abstract

We investigate the relation between common institutional ownership of the firms in an industry and product market competition. We find that common ownership is neither robustly positively related with industry profitability or output prices nor is it robustly negatively related with measures of nonprice competition, as would be expected if common ownership reduces competition. This conclusion holds regardless of industry classification choice, common ownership measure, profitability measure, nonprice competition proxy, or model specification. Our point estimates are close to zero with tight bounds, rejecting even modestly sized economic effects. We conclude that antitrust restrictions seeking to limit intra-industry common ownership are not currently warranted.

DOI
10.1016/j.jfineco.2020.07.007
Volume
139
Issue
1
Pages
109-137
Language
en
Sources
crossref bibtex:phds-export.bib openalex

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