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The Anatomy of Cyber Risk

Author

Listed:
  • Rustam Jamilov

    (All Souls College, University of Oxford)

  • Helene Rey

    (London Business School)

  • Ahmed Tahoun

    (London Business School)

Abstract

This paper employs computational linguistics to introduce a novel text-based measure of firm-level cyber risk exposure based on quarterly earnings conference calls of listed firms. Our quarterly measures are available for more than 13,000 firms from 85 countries over 2002-2021. We document that cyber risk exposure predicts cyber attacks, affects stock returns and profits, and is priced in the equity option market.The cost of option protection against price, variance, and tail risks is greater for more cyber-exposed firms. Cyber risks spill over across firms and persist at the sectoral level. The geography of cyber risk exposure is well approximated by a gravity model extended with cross-border portfolio flows. Back-of-the-envelope calculations suggest that the global cost of cyber risk is over $200 billion per year.

Suggested Citation

  • Rustam Jamilov & Helene Rey & Ahmed Tahoun, 2023. "The Anatomy of Cyber Risk," Working Papers Series inetwp206, Institute for New Economic Thinking.
    • Handle: RePEc:thk:wpaper:inetwp206
    DOI: 10.36687/inetwp206
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    Cited by:

    1. Zacharias Sautner & Laurence Van Lent & Grigory Vilkov & Ruishen Zhang, 2023. "Firm‐Level Climate Change Exposure," Journal of Finance, American Finance Association, vol. 78(3), pages 1449-1498, June.
    2. Crosignani, Matteo & Macchiavelli, Marco & Silva, André F., 2023. "Pirates without borders: The propagation of cyberattacks through firms’ supply chains," Journal of Financial Economics, Elsevier, vol. 147(2), pages 432-448.
    3. Anand, Kartik & Duley, Chanelle & Gai, Prasanna, 2022. "Cybersecurity and financial stability," Discussion Papers 08/2022, Deutsche Bundesbank.

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    More about this item

    Keywords

    Cyber risk; textual analysis; earnings calls;
    All these keywords.

    JEL classification:

    • D22 - Microeconomics - - Production and Organizations - - - Firm Behavior: Empirical Analysis
    • L10 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - General

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