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Journal of Financial and Quantitative Analysis Vol. 51 No. 3 2016

The Price of Street Friends: Social Networks, Informed Trading, and Shareholder Costs

Jie Cai1; Ralph A. Walkling1; Ke Yang2

1 Drexel University · 2 Lehigh University

Abstract

Recent studies suggest the transfer of privileged information via social ties but do not explicitly examine the cost of these ties to shareholders. We document a significant positive relation between stock transaction costs and a company’s social ties to the investment community. Social ties based on education and leisure activities, stronger ties, and ties to individuals responsible for trading have greater effects. Using investment connection deaths as natural experiments, we document that exogenous severance of ties reduces trading costs and trading activities by connected parties. Our evidence illustrates an important and previously undocumented consequence of social ties.

DOI
10.1017/s0022109016000399
Volume
51
Issue
3
Pages
801-837
Language
en
Sources
bibtex:phds-export.bib openalex crossref

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