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Financial Linkages, Portfolio Choice and Systemic Risk

Author

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  • Andrea Galeotti
  • Christian Ghiglinoy
  • Sanjeev Goyal

Abstract

Financial linkages smooth the shocks faced by individual components of the system, but they also create a wedge between ownership and decision-making. The classical intuition on the role of pooling risk in raising welfare is valid when ownership is evenly dispersed. However, when the ownership of some agents is concentrated in the hands of a few others, greater integration and diversification can lead to excessive risk taking and volatility and result in lower welfare. We also show that individuals undertake too little (too much) risk relative to the first best if the network is homogeneous (heterogeneous), and study optimal networks.

Suggested Citation

  • 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.
  • Handle: RePEc:cam:camdae:1612
    Note: sg472
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    File URL: http://www.econ.cam.ac.uk/research-files/repec/cam/pdf/cwpe1612.pdf
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    References listed on IDEAS

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    4. Bech, Morten L. & Atalay, Enghin, 2010. "The topology of the federal funds market," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 389(22), pages 5223-5246.
    5. Belhaj, Mohamed & Deroïan, Frédéric, 2012. "Risk taking under heterogenous revenue sharing," Journal of Development Economics, Elsevier, vol. 98(2), pages 192-202.
    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. Arlotto, Alessandro & Scarsini, Marco, 2009. "Hessian orders and multinormal distributions," Journal of Multivariate Analysis, Elsevier, vol. 100(10), pages 2324-2330, November.
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    Cited by:

    1. Jiang, Bo & Tzavellas, Hector, 2023. "Optimal liquidity allocation in an equity network," International Review of Economics & Finance, Elsevier, vol. 85(C), pages 286-294.
    2. Chukwudi Henry Dike, 2020. "Strategic Interactions in Financial Networks," 2020 Papers pdi579, Job Market Papers.
    3. Mohamed Belhaj & Renaud Bourlès & Frédéric Deroïan, 2020. "Prudential Regulation in Financial Networks," Working Papers halshs-02950881, HAL.
    4. Hector Tzavellas, 2023. "A Multilayer View Of Systemic Importance And Aggregate Fluctuations," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 64(3), pages 1023-1046, August.

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