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arXiv 1703.04549q-fin.RM
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系统性风险、最大熵与银行间传染

Systemic Risk, Maximum Entropy and Interbank Contagion

M. Andrecut

摘要:

本文讨论了用最大熵方法重构的银行间风险暴露所隐含的系统性风险。最大熵方法通过假设一个完全连接的网络严重低估了银行间传染的风险,而实际上银行间网络的结构是稀疏连接的。在这里,我们制定了稀疏网络重建的算法,我们数值表明,它提供了一个更可靠的估计的系统性风险。

英文摘要:

We discuss the systemic risk implied by the interbank exposures reconstructed with the maximum entropy method. The maximum entropy method severely underestimates the risk of interbank contagion by assuming a fully connected network, while in reality the structure of the interbank network is sparsely connected. Here, we formulate an algorithm for sparse network reconstruction, and we show numerically that it provides a more reliable estimation of the systemic risk.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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