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How dark is the dark side of diversification?

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Listed:
  • Pedro Cadenas

    (Denison University)

  • Henryk Gzyl

    (IESA)

  • Hyun Woong Park

    (Denison University)

Abstract

Against the widely held belief that diversification at banking institutions contributes to the stability of the financial system, Wagner (2010) found that diversification actually makes systemic crisis more likely. While it is true, as Wagner asserts, that the probability of joint default of the diversified portfolios is larger; we contend that, as common practice, the effect of diversification is examined with respect to a risk measure like VaR. We find that when banks use VaR, diversification does reduce individual and systemic risk. This, in turn, generates a different set of incentives for banks and regulators.

Suggested Citation

  • Pedro Cadenas & Henryk Gzyl & Hyun Woong Park, 2020. "How dark is the dark side of diversification?," Papers 2012.12154, arXiv.org.
    • Handle: RePEc:arx:papers:2012.12154
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    References listed on IDEAS

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    1. Pérignon, Christophe & Deng, Zi Yin & Wang, Zhi Jun, 2008. "Do banks overstate their Value-at-Risk?," Journal of Banking & Finance, Elsevier, vol. 32(5), pages 783-794, May.
    2. Tobias Adrian & Hyun Song Shin, 2014. "Procyclical Leverage and Value-at-Risk," The Review of Financial Studies, Society for Financial Studies, vol. 27(2), pages 373-403.
    3. Rossignolo, Adrian F. & Fethi, Meryem Duygun & Shaban, Mohamed, 2012. "Value-at-Risk models and Basel capital charges," Journal of Financial Stability, Elsevier, vol. 8(4), pages 303-319.
    4. Wagner, Wolf, 2010. "Diversification at financial institutions and systemic crises," Journal of Financial Intermediation, Elsevier, vol. 19(3), pages 373-386, July.
    5. Tran, Vuong Thao & Lin, Chien-Ting & Nguyen, Hoa, 2016. "Liquidity creation, regulatory capital, and bank profitability," International Review of Financial Analysis, Elsevier, vol. 48(C), pages 98-109.
    6. Blum, Jurg, 1999. "Do capital adequacy requirements reduce risks in banking?," Journal of Banking & Finance, Elsevier, vol. 23(5), pages 755-771, May.
    7. van Oordt, Maarten R.C., 2014. "Securitization and the dark side of diversification," Journal of Financial Intermediation, Elsevier, vol. 23(2), pages 214-231.
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    Cited by:

    1. Pedro Cadenas & Henryk Gzyl, 2021. "Diversification Can Control Probability of Default or Risk, but Not Both," JRFM, MDPI, vol. 14(2), pages 1-10, February.
    2. Chen, Zhonglu & Umar, Muhammad & Su, Chi-Wei & Mirza, Nawazish, 2023. "Renewable energy, credit portfolios and intermediation spread: Evidence from the banking sector in BRICS," Renewable Energy, Elsevier, vol. 208(C), pages 561-566.

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    More about this item

    JEL classification:

    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages
    • G28 - Financial Economics - - Financial Institutions and Services - - - Government Policy and Regulation

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