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arXiv 1208.3789q-fin.GNcs.CE
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金融网络的全局稳定性

On Global Stability of Financial Networks

Bhaskar DasGupta, Lakshmi Kaligounder

摘要:

最近的金融危机引发了经济学家和监管当局对全球金融网络脆弱性的新兴趣。特别是,金融网络的一个潜在脆弱性是“金融传染”过程,在这一过程中,个别实体的破产通过“依赖关系网”蔓延,影响到整个系统。在本文中,我们形式化的金融网络模型最初提出的Nier等人的扩展。的场景,如场外衍生品市场,定义了一个合适的全球稳定性措施,为这个模型,并执行一个全面的经验评估超过700,000网络类型和参数组合的组合,这个稳定性措施。基于我们的评估,我们发现了许多有趣的影响,我们的评估,这种稳定性措施,并得出拓扑性质和参数组合,可用于标记网络作为一个可能的脆弱网络。用于计算稳定性的交互式软件FIN-STAB可从网站www2.cs.uic.edu/~dasgupta/financial-simulator-files获得

英文摘要:

The recent financial crisis have generated renewed interests in fragilities of global financial networks among economists and regulatory authorities. In particular, a potential vulnerability of the financial networks is the "financial contagion" process in which insolvencies of individual entities propagate through the "web of dependencies" to affect the entire system. In this paper, we formalize an extension of a financial network model originally proposed by Nier et al. for scenarios such as the OTC derivatives market, define a suitable global stability measure for this model, and perform a comprehensive empirical evaluation of this stability measure over more than 700,000 combinations of networks types and parameter combinations. Based on our evaluations, we discover many interesting implications of our evaluations of this stability measure, and derive topological properties and parameters combinations that may be used to flag the network as a possible fragile network. An interactive software FIN-STAB for computing the stability is available from the website www2.cs.uic.edu/~dasgupta/financial-simulator-files

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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