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Risk taking under heterogenous revenue sharing

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  • Belhaj, Mohamed
  • Deroïan, Frédéric

Abstract

We examine the impact of informal risk sharing on risk taking incentives when transfers are organized through a social network. A bilateral partial sharing rule satisfies that neighbors share equally a part of their revenue. In such a society, correlated technologies generate interdependent risk levels. We obtain three findings. First, there is a unique and interior Nash-equilibrium risk profile, and it is in general differentiated and related to the Bonacich measure of the risk sharing network. Second, more revenue sharing enhances risk taking on average, although some agents may lower their risk level. Last, we find that under investment might often be observed.

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  • Belhaj, Mohamed & Deroïan, Frédéric, 2012. "Risk taking under heterogenous revenue sharing," Journal of Development Economics, Elsevier, vol. 98(2), pages 192-202.
    • Handle: RePEc:eee:deveco:v:98:y:2012:i:2:p:192-202
    DOI: 10.1016/j.jdeveco.2011.07.003
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    2. Jackson, Matthew O. & Zenou, Yves, 2015. "Games on Networks," Handbook of Game Theory with Economic Applications,, Elsevier.
    3. Gao Wayne Yuan & Moon Eunyoung, 2016. "Informal Insurance Networks," The B.E. Journal of Theoretical Economics, De Gruyter, vol. 16(2), pages 455-484, June.
    4. Allouch, Nizar, 2017. "The cost of segregation in (social) networks," Games and Economic Behavior, Elsevier, vol. 106(C), pages 329-342.
    5. Mohamed Belhaj & Renaud Bourl?s & Fr?d?ric Dero?an, 2014. "Risk-Taking and Risk-Sharing Incentives under Moral Hazard," American Economic Journal: Microeconomics, American Economic Association, vol. 6(1), pages 58-90, February.
    6. Bene, Tizié & Bramoullé, Yann & Deroïan, Frédéric, 2024. "Formal insurance and altruism networks," Journal of Development Economics, Elsevier, vol. 171(C).
    7. Andrea Galeotti & Christian Ghiglinoy & Sanjeev Goyal, 2016. "Financial Linkages, Portfolio Choice and Systemic Risk," Cambridge Working Papers in Economics 1612, Faculty of Economics, University of Cambridge.
    8. Belhaj, Mohamed & Deroïan, Frédéric, 2013. "Strategic interaction and aggregate incentives," Journal of Mathematical Economics, Elsevier, vol. 49(3), pages 183-188.
    9. Putman, Daniel S., 2020. "The Scope of Risk Pooling," 2020 Annual Meeting, July 26-28, Kansas City, Missouri 304480, Agricultural and Applied Economics Association.

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    More about this item

    Keywords

    Risk taking; Revenue sharing; Social networks; Systematic risk; Strategic substitutes;
    All these keywords.

    JEL classification:

    • C72 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Noncooperative Games
    • D81 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Criteria for Decision-Making under Risk and Uncertainty
    • D85 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Network Formation

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