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Markku Kaustia's and Ville Rantala's paper accepted to Journal of Financial Economics

"Social learning and corporate peer effects"

Article "Social Learning and Corporate Peer Effects" by and has been accepted for publication in the Journal of Financial Economics.

Abstract:     

We find that firms are more likely to split their stock if their peer firms have recently done so. The effect is comparable to an increase of 40-50% in the share price. Splitting probability is also increasing in the announcement returns of peer splits. These results are consistent with social learning from peers’ actions and outcomes. The unique features of the setting and various further tests render alternative explanations unlikely. We find no clear benefit in following successful peer splitters. Firms are sometimes suspected to succumb to imitation, and the effect we document may be a case in point.

The paper can be downloaded at SSRN:

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#65 in the world in business & economics THE World University Rankings 2026 by Subject on a yellow background.
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Unite! Seed Fund 2026 announcement with a small plant sprouting from soil. Call now open for student activities, teaching, and research.
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Unite! Seed Fund 2026: Open for applications

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Cooperation, Research & Art, Studies, University Published:

Apply now: Unite! Seed Fund 2026 - Student Call

The Unite! Seed Fund call for 2026 is now open for students. Apply now for up to €20,000 per project, involving at least two Unite! Universities. Deadline for applications is 20 March 2026.

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Create your CV easily with the Research.fi profile tool

Aalto University’s researchers can now create a CV using the CV tool in the Research tool service. The tool generates an editable Word CV based on your Research.fi profile information, following the official TENK CV template.