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Optimal Banking Arrangements: Liquidity Creation Without Financial Fragility

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  • Maxi Günnewig
  • Yuliyan Mitkov

Abstract

Diamond and Rajan (2000, 2001) argue that banks create liquidity by issuing deposits to fund difficult, illiquid firms that otherwise cannot obtain funding. Since deposits may lead to bank runs, this resulting financial fragility is essential for liquidity creation. We revisit the Diamond-Rajan model of financial intermediation and show that a bank with an optimal financing structure is not subject to runs. Our contract rests on three simple notions. First, each bank creditor has the right to demand repayment at every instant. Second, the repayment is given by the value of a pre- specified fraction of the bank’s assets. Third, some creditors are more senior than others: their repayment demands are prioritized. In contrast to Diamond and Rajan, we find that financial fragility is detrimental to liquidity creation.

Suggested Citation

  • Maxi Günnewig & Yuliyan Mitkov, 2024. "Optimal Banking Arrangements: Liquidity Creation Without Financial Fragility," CRC TR 224 Discussion Paper Series crctr224_2024_605, University of Bonn and University of Mannheim, Germany.
  • Handle: RePEc:bon:boncrc:crctr224_2024_605
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    File URL: https://www.crctr224.de/research/discussion-papers/archive/dp605
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    References listed on IDEAS

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    2. Douglas W. Diamond & Raghuram G. Rajan, 2000. "A Theory of Bank Capital," Journal of Finance, American Finance Association, vol. 55(6), pages 2431-2465, December.
    3. Sudheer Chava & Michael R. Roberts, 2008. "How Does Financing Impact Investment? The Role of Debt Covenants," Journal of Finance, American Finance Association, vol. 63(5), pages 2085-2121, October.
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    7. Mitkov, Yuliyan, 2024. "A theory of debt maturity and innovation," Journal of Economic Theory, Elsevier, vol. 218(C).
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    More about this item

    Keywords

    Liquidity; banking; financial fragility; optimal contracts; collateral.;
    All these keywords.

    JEL classification:

    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages

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