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Interest rates and financial fragility

机译:利率和财务脆弱性

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How do the interest rates banks earn on their assets affect the susceptibility of the banking system to a self-fulfilling run by depositors? I study this question in a version of the model of Diamond and Dybvig (1983) with limited commitment and a non-trivial portfolio choice. I show that the relationship between these interest rates and financial fragility is often non-monotone. For example, a small increase in the return on illiquid investment (or a small increase in the term premium) may raise banks' susceptibility to a run, while a larger increase would make the banking system more stable. The same is true for changes in short-term rates, holding the longer-term rates fixed. I provide a precise characterization of these comparative statics of financial fragility. (C) 2017 Elsevier B.V. All rights reserved.
机译:银行以其资产赚取的利率如何影响银行系统对存户进行自我实现的敏感性?我在Diamond和Dybvig(1983)模型的一个版本中研究了这个问题,该模型具有有限的承诺和非平凡的投资组合选择。我证明了这些利率与财务脆弱性之间的关系通常是非单调的。例如,非流动性投资收益的小幅增长(或定期保费的小幅增长)可能会提高银行的挤兑敏感性,而较大的增长会使银行体系更加稳定。短期利率的变化也是如此,长期利率不变。我提供了这些金融脆弱性比较静态指标的精确描述。 (C)2017 Elsevier B.V.保留所有权利。

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