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Portfolio Homogenization and Systemic Risk of Financial Network

Author

Listed:
  • Huang, Yajing
  • Liu, Taoxiong
  • Lien, Donald
Abstract
In this paper, we argue that systemic risk should be understood from two different perspectives, the homogeneity of portfolios (or called asset homogeneity) and the contagion mechanism. The homogenization of portfolios held by different financial institutions increases the positive correlations among them and therefore the probability of simultaneous collapses of a considerable part of the network, which are prerequisites and amplifiers of contagion. We first theoretically analyze the influence of asset homogeneity on the initial risk, fragility and systemic risk of the network. Based on the theoretical predictions, we perform simulations on regular networks and Poisson random networks to illustrate the effects of portfolio homogeneity on systemic risk. It is shown that the relationship between asset homogeneity and systemic risk is not always positively related. When the network contagion is weak, then a high asset homogeneity will lead to a high systemic risk. However, if the network contagion is considerably strong, the systemic risk is quite likely to be negative related to the asset homogeneity, so that a high homogeneity will produce a low systemic risk. Moreover, networks with strong contagion and low asset homogeneity tend to have the greatest systemic risk. Results from logistic regression analysis further clarify the relationships between systemic risk and asset homogeneity.

Suggested Citation

  • Huang, Yajing & Liu, Taoxiong & Lien, Donald, 2017. "Portfolio Homogenization and Systemic Risk of Financial Network," MPRA Paper 82956, University Library of Munich, Germany.
    • Handle: RePEc:pra:mprapa:82956
    as

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    File URL: https://mpra.ub.uni-muenchen.de/82956/1/MPRA_paper_82956.pdf
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    References listed on IDEAS

    as
    1. Franklin Allen & Douglas Gale, 2000. "Financial Contagion," Journal of Political Economy, University of Chicago Press, vol. 108(1), pages 1-33, February.
    2. 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.
    3. Douglas W. Diamond & Philip H. Dybvig, 2000. "Bank runs, deposit insurance, and liquidity," Quarterly Review, Federal Reserve Bank of Minneapolis, vol. 24(Win), pages 14-23.
    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. 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.
    6. Freixas, Xavier & Parigi, Bruno M & Rochet, Jean-Charles, 2000. "Systemic Risk, Interbank Relations, and Liquidity Provision by the Central Bank," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 32(3), pages 611-638, August.
    7. Daron Acemoglu & Vasco M. Carvalho & Asuman Ozdaglar & Alireza Tahbaz‐Salehi, 2012. "The Network Origins of Aggregate Fluctuations," Econometrica, Econometric Society, vol. 80(5), pages 1977-2016, September.
    8. Caccioli, Fabio & Shrestha, Munik & Moore, Cristopher & Farmer, J. Doyne, 2014. "Stability analysis of financial contagion due to overlapping portfolios," Journal of Banking & Finance, Elsevier, vol. 46(C), pages 233-245.
    9. Nier, Erlend & Yang, Jing & Yorulmazer, Tanju & Alentorn, Amadeo, 2007. "Network models and financial stability," Journal of Economic Dynamics and Control, Elsevier, vol. 31(6), pages 2033-2060, June.
    10. Gai, Prasanna & Kapadia, Sujit, 2010. "Contagion in financial networks," Bank of England working papers 383, Bank of England.
    11. repec:taf:jnlbes:v:30:y:2012:i:2:p:212-228 is not listed on IDEAS
    12. 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.
    13. Beteto Wegner, Danilo Lopomo, 2014. "Network Formation and Financial Fragility," Risk and Sustainable Management Group Working Papers 179222, University of Queensland, School of Economics.
    Full references (including those not matched with items on IDEAS)

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    More about this item

    Keywords

    Financial network; Portfolio homogenization; Contagion; Systemic risk;
    All these keywords.

    JEL classification:

    • D85 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Network Formation
    • F65 - International Economics - - Economic Impacts of Globalization - - - Finance
    • G01 - Financial Economics - - General - - - Financial Crises
    • G15 - Financial Economics - - General Financial Markets - - - International Financial Markets
    • G32 - Financial Economics - - Corporate Finance and Governance - - - Financing Policy; Financial Risk and Risk Management; Capital and Ownership Structure; Value of Firms; Goodwill
    • G33 - Financial Economics - - Corporate Finance and Governance - - - Bankruptcy; Liquidation

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