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The Risk Spiral: The Effects of Bank Capital and Diversification on Risk Taking

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  • Peleg Lazar, Sharon
  • Raviv, Alon

Abstract

We present a model where bank assets are a portfolio of risky debt claims and analyze stockholders' risk-taking behavior while considering the strategic interaction between debtors and creditors. We find that: (1) as the leverage of a bank increases, risk shifting by borrowers increases, even if their leverage is unchanged (zombie lending). (2) While the literature demonstrates that an increase in the co-movement of a loan portfolio increases the bank's cost of default directly, we find that the increase in co-movement causes an increase in risk shifting that further increases the cost of default (3) Risk shifting decreases with the diversification of a loan portfolio.

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  • Peleg Lazar, Sharon & Raviv, Alon, 2019. "The Risk Spiral: The Effects of Bank Capital and Diversification on Risk Taking," MPRA Paper 92134, University Library of Munich, Germany.
    • Handle: RePEc:pra:mprapa:92134
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    More about this item

    Keywords

    Risk taking; Banks; Comovements; Deposit insurance; Zombie lending;
    All these keywords.

    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
    • G32 - Financial Economics - - Corporate Finance and Governance - - - Financing Policy; Financial Risk and Risk Management; Capital and Ownership Structure; Value of Firms; Goodwill
    • G38 - Financial Economics - - Corporate Finance and Governance - - - Government Policy and Regulation

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