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Risk-taking in financial networks

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  • Belhaj, Mohamed
  • Bourlès, Renaud
  • Deroïan, Frédéric

Abstract

We analyze risk-taking behaviors of financial institutions linked through cross-shareholding relationships. We endogenize risk exposure accounting for default risk by modeling Value-at-Risk-based risk-management – that is targeted default probabilities – in the presence of extreme risk on asset return. We relate risk-taking behaviors to a centrality measure that captures the propagation of losses within the network, and show that network integration increases risk-taking levels and expected return. However, we show that network integration also results in larger expected shortfall, indicating greater exposure to losses for creditors. We explore the impact of the cross-shareholding network on the implementation of regulation, particularly through capital requirements, and identify key institutions, those with the highest influence on aggregate investments in risky assets.

Suggested Citation

  • Belhaj, Mohamed & Bourlès, Renaud & Deroïan, Frédéric, 2026. "Risk-taking in financial networks," Games and Economic Behavior, Elsevier, vol. 156(C), pages 35-57.
    • Handle: RePEc:eee:gamebe:v:156:y:2026:i:c:p:35-57
    DOI: 10.1016/j.geb.2025.11.006
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    1. Yann Bramoull? & Rachel Kranton & Martin D'Amours, 2014. "Strategic Interaction and Networks," American Economic Review, American Economic Association, vol. 104(3), pages 898-930, March.
    2. Jackson, Matthew O. & Pernoud, Agathe, 2025. "Optimal regulation and investment incentives in financial networks," Journal of Public Economics, Elsevier, vol. 252(C).
    3. Harry Markowitz, 1952. "Portfolio Selection," Journal of Finance, American Finance Association, vol. 7(1), pages 77-91, March.
    4. Brioschi, Francesco & Buzzacchi, Luigi & Colombo, Massimo G., 1989. "Risk capital financing and the separation of ownership and control in business groups," Journal of Banking & Finance, Elsevier, vol. 13(4-5), pages 747-772, September.
    5. Leduc, Matt V. & Thurner, Stefan, 2017. "Incentivizing resilience in financial networks," Journal of Economic Dynamics and Control, Elsevier, vol. 82(C), pages 44-66.
    6. Daron Acemoglu & Asuman Ozdaglar & Alireza Tahbaz-Salehi, 2015. "Systemic Risk and Stability in Financial Networks," American Economic Review, American Economic Association, vol. 105(2), pages 564-608, February.
    7. Prasanna Gai & Sujit Kapadia, 2019. "Networks and systemic risk in the financial system," Oxford Review of Economic Policy, Oxford University Press and Oxford Review of Economic Policy Limited, vol. 35(4), pages 586-613.
    8. Micah Pollak & Yuanying Guan, 2017. "Partially Overlapping Ownership and Contagion in Financial Networks," Complexity, Hindawi, vol. 2017, pages 1-16, November.
    9. Shushu Li & Jinglan Zhang & Yong Ma, 2015. "Financial Development, Environmental Quality and Economic Growth," Sustainability, MDPI, vol. 7(7), pages 1-22, July.
    10. Belhaj, Mohamed & Bramoullé, Yann & Deroïan, Frédéric, 2014. "Network games under strategic complementarities," Games and Economic Behavior, Elsevier, vol. 88(C), pages 310-319.
    11. Craig, Ben & von Peter, Goetz, 2014. "Interbank tiering and money center banks," Journal of Financial Intermediation, Elsevier, vol. 23(3), pages 322-347.
    12. Giulia Rotundo & Anna D’Arcangelis, 2014. "Network of companies: an analysis of market concentration in the Italian stock market," Quality & Quantity: International Journal of Methodology, Springer, vol. 48(4), pages 1893-1910, July.
    13. Glasserman, Paul & Young, H. Peyton, 2016. "Contagion in financial networks," LSE Research Online Documents on Economics 68681, London School of Economics and Political Science, LSE Library.
    14. Matthew Elliott & Benjamin Golub & Matthew O. Jackson, 2014. "Financial Networks and Contagion," American Economic Review, American Economic Association, vol. 104(10), pages 3115-3153, October.
    15. Gabrielle Demange, 2018. "Contagion in Financial Networks: A Threat Index," Management Science, INFORMS, vol. 64(2), pages 955-970, February.
    16. Fedenia, Mark & Hodder, James E & Triantis, Alexander J, 1994. "Cross-Holdings: Estimation Issues, Biases, and Distortions," The Review of Financial Studies, Society for Financial Studies, vol. 7(1), pages 61-96.
    17. Matthew O Jackson & Agathe Pernoud, 2024. "Credit Freezes, Equilibrium Multiplicity, and Optimal Bailouts in Financial Networks," The Review of Financial Studies, Society for Financial Studies, vol. 37(7), pages 2017-2062.
    18. Gordon M. Bodnar & Gregory S. Hayt & Richard C. Marston, 1998. "1998 Wharton Survey of Financial Risk Management by US Non-Financial Firms," Financial Management, Financial Management Association, vol. 27(4), Winter.
    19. Paul Glasserman & H. Peyton Young, 2016. "Contagion in Financial Networks," Journal of Economic Literature, American Economic Association, vol. 54(3), pages 779-831, September.
    20. Basak, Suleyman & Shapiro, Alexander, 2001. "Value-at-Risk-Based Risk Management: Optimal Policies and Asset Prices," The Review of Financial Studies, Society for Financial Studies, vol. 14(2), pages 371-405.
    21. Franklin Allen & Douglas Gale, 2000. "Financial Contagion," Journal of Political Economy, University of Chicago Press, vol. 108(1), pages 1-33, February.
    22. Xavier Freixas & Jean‐Charles Rochet, 2013. "Taming Systemically Important Financial Institutions," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 45(s1), pages 37-58, August.
    23. Antonio Cabrales & Piero Gottardi & Fernando Vega-Redondo, 2017. "Risk Sharing and Contagion in Networks," The Review of Financial Studies, Society for Financial Studies, vol. 30(9), pages 3086-3127.
    24. Mohammed Ziaur Rehman & Nasir Ali & Najeeb Muhammad Nasir, 2015. "Financial Development, Savings and Economic Growth: Evidence from Bahrain Using VAR," International Journal of Financial Research, International Journal of Financial Research, Sciedu Press, vol. 6(2), pages 112-123, April.
    25. Galeotti, Andrea & Ghiglino, Christian, 2021. "Cross-ownership and portfolio choice," Journal of Economic Theory, Elsevier, vol. 192(C).
    26. Jean-Charles Rochet, 2004. "Rebalancing the three pillars of Basel II," Economic Policy Review, Federal Reserve Bank of New York, issue Sep, pages 7-21.
    27. Petra Valickova & Tomas Havranek & Roman Horvath, 2015. "Financial Development And Economic Growth: A Meta-Analysis," Journal of Economic Surveys, Wiley Blackwell, vol. 29(3), pages 506-526, July.
    28. Larry Eisenberg & Thomas H. Noe, 2001. "Systemic Risk in Financial Systems," Management Science, INFORMS, vol. 47(2), pages 236-249, February.
    29. Decamps, Jean-Paul & Rochet, Jean-Charles & Roger, Benoit, 2004. "The three pillars of Basel II: optimizing the mix," Journal of Financial Intermediation, Elsevier, vol. 13(2), pages 132-155, April.
    30. Rockafellar, R. Tyrrell & Uryasev, Stanislav, 2002. "Conditional value-at-risk for general loss distributions," Journal of Banking & Finance, Elsevier, vol. 26(7), pages 1443-1471, July.
    31. Kevin C. Murdock & Thomas F. Hellmann & Joseph E. Stiglitz, 2000. "Liberalization, Moral Hazard in Banking, and Prudential Regulation: Are Capital Requirements Enough?," American Economic Review, American Economic Association, vol. 90(1), pages 147-165, March.
    32. Levine, Ross, 2005. "Finance and Growth: Theory and Evidence," Handbook of Economic Growth, in: Philippe Aghion & Steven Durlauf (ed.), Handbook of Economic Growth, edition 1, volume 1, chapter 12, pages 865-934, Elsevier.
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