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CEO social connections and bank systemic risk: The “dark side” of social networks

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  • Adasi Manu, Sylvester
  • Qi, Yaxuan

Abstract

This paper finds that banks led by socially connected CEOs have a higher degree of systemic risk compared to banks with less socially connected CEOs. To address endogeneity concerns, we employ a difference-in-differences design and the instrumental variable method using CEO death as an exogenous shock to the social network. Our study uncovers two key mechanisms through which CEO social networks impact bank systemic risk. First, banks governed by connected CEOs are more active in interbank transactions. Second, bank pairs featuring connected CEOs display a greater asset similarity in comparison to those without connected CEOs. These findings highlight the significant impact of CEO social connections on banks' interconnectedness and their potential contribution to systemic risk in the banking sector.

Suggested Citation

  • Adasi Manu, Sylvester & Qi, Yaxuan, 2023. "CEO social connections and bank systemic risk: The “dark side” of social networks," Journal of Banking & Finance, Elsevier, vol. 156(C).
    • Handle: RePEc:eee:jbfina:v:156:y:2023:i:c:s0378426623001863
    DOI: 10.1016/j.jbankfin.2023.106988
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    More about this item

    Keywords

    Systemic risk; Social connections; Network centrality;
    All these keywords.

    JEL classification:

    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages
    • G32 - Financial Economics - - Corporate Finance and Governance - - - Financing Policy; Financial Risk and Risk Management; Capital and Ownership Structure; Value of Firms; Goodwill
    • D85 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Network Formation

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