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Ex Ante and Ex Post Investments in Cybersecurity

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  • Lam, Wing Man Wynne

Abstract

This paper develops a theory of sequential investments in cybersecurity in which the software vendor can invest ex ante and ex post. The regulator can use safety standards and liability rules as means of increasing security. A standard is a minimum level of safety, and a liability rule states the amount of damage each party is liable for. I show that the joint use of an optimal standard and a full liability rule leads to underinvestment ex ante and overinvestment ex post because the software vendor does not suffer the full costs of the society in case of security failure. Instead, switching to a partial liability rule can correct the inefficiencies. This suggests that to improve security, the regulator should encourage not only the firms, but also the enterprises to invest in security. I also discuss the effect of network externality and explain why firms engage in "vaporware".

Suggested Citation

  • Lam, Wing Man Wynne, 2014. "Ex Ante and Ex Post Investments in Cybersecurity," TSE Working Papers 14-519, Toulouse School of Economics (TSE).
    • Handle: RePEc:tse:wpaper:28400
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    References listed on IDEAS

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    1. Daughety, Andrew F & Reinganum, Jennifer F, 1995. "Product Safety: Liability, R&D, and Signaling," American Economic Review, American Economic Association, vol. 85(5), pages 1187-1206, December.
    2. Ashish Arora & Anand Nandkumar & Rahul Telang, 2006. "Does information security attack frequency increase with vulnerability disclosure? An empirical analysis," Information Systems Frontiers, Springer, vol. 8(5), pages 350-362, December.
    3. Andrew F. Daughety & Jennifer F. Reinganum, 2006. "Markets, torts, and social inefficiency," RAND Journal of Economics, RAND Corporation, vol. 37(2), pages 300-323, June.
    4. Andrew F. Daughety & Jennifer F. Reinganum, 2005. "Secrecy and Safety," American Economic Review, American Economic Association, vol. 95(4), pages 1074-1091, September.
    5. Kolstad, Charles D & Ulen, Thomas S & Johnson, Gary V, 1990. "Ex Post Liability for Harm vs. Ex Ante Safety Regulation: Substitutes or Complements?," American Economic Review, American Economic Association, vol. 80(4), pages 888-901, September.
    6. Marco A. Haan, 2003. "Vaporware as a Means of Entry Deterrence," Journal of Industrial Economics, Wiley Blackwell, vol. 51(3), pages 345-358, September.
    7. Jay Pil Choi & Chaim Fershtman & Neil Gandal, 2010. "Network Security: Vulnerabilities And Disclosure Policy," Journal of Industrial Economics, Wiley Blackwell, vol. 58(4), pages 868-894, December.
    8. Acemoglu, Daron & Malekian, Azarakhsh & Ozdaglar, Asu, 2016. "Network security and contagion," Journal of Economic Theory, Elsevier, vol. 166(C), pages 536-585.
    9. Steven Shavell, 1984. "A Model of the Optimal Use of Liability and Safety Regulation," RAND Journal of Economics, The RAND Corporation, vol. 15(2), pages 271-280, Summer.
    10. Terrence August & Tunay I. Tunca, 2006. "Network Software Security and User Incentives," Management Science, INFORMS, vol. 52(11), pages 1703-1720, November.
    11. Kunreuther, Howard & Heal, Geoffrey, 2003. "Interdependent Security," Journal of Risk and Uncertainty, Springer, vol. 26(2-3), pages 231-249, March-May.
    12. Tyler Moore & Richard Clayton & Ross Anderson, 2009. "The Economics of Online Crime," Journal of Economic Perspectives, American Economic Association, vol. 23(3), pages 3-20, Summer.
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    More about this item

    Keywords

    cybersecurity; sequential investment; standards; liability;
    All these keywords.

    JEL classification:

    • L1 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance
    • L8 - Industrial Organization - - Industry Studies: Services

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    This paper has been announced in the following NEP Reports:

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