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中国管理科学 ›› 2019, Vol. 27 ›› Issue (11): 23-30.doi: 10.16381/j.cnki.issn1003-207x.2019.11.003

• 论文 • 上一篇    下一篇

基于共同持有资产的银行间接关联网络研究

王超1, 何建敏2, 马静3   

  1. 1. 南京农业大学金融学院, 江苏 南京 210095;
    2. 东南大学经济管理学院, 江苏 南京 211189;
    3. 南京财经大学MBA教育中心, 江苏 南京 210023
  • 收稿日期:2018-05-30 修回日期:2018-08-28 出版日期:2019-11-20 发布日期:2019-11-28
  • 通讯作者: 王超(1990-),男(汉族),山东青岛人,南京农业大学金融学院,讲师,博士,研究方向:金融工程,E-mail:hejianminedu@163.com. E-mail:hejianminedu@163.com
  • 基金资助:
    国家自然科学基金资助项目(71971055)

Indirect Correlation Network between Banks Based on Common Assets

WANG Chao1, HE Jian-min2, MA Jing3   

  1. 1. School of Finance, Nanjing Agricultural University, Nanjing 210095, China;
    2. School of Economics and Management, Southeast University, Nanjing 211189, China;
    3. MBA Education Center, Nanjing University of Finance and Economics, Nanjing 210023, China
  • Received:2018-05-30 Revised:2018-08-28 Online:2019-11-20 Published:2019-11-28

摘要: 金融市场是一个复杂系统,银行之间不仅有直接的拆借关系,还能够通过投资市场建立间接关联。本文分析了资产内生相关性、资产降价出售以及银行投资行为等因素对银行间接关联程度的影响,基于这些因素通过持有共同资产构建银行系统的间接关联,并以此为基础通过平面极大过滤图方法生成银行间接关联网络,论证了该网络中的系统重要性银行,并通过对该网络结构特征的分析,发现间接关联网络具有小世界和无标度等特征,这些特征与银行通过直接拆借形成的网络相似。本文对于银行间接关联网络的研究不仅能够更加清晰地了解银行之间的关系,也为银行系统性风险的监管提供了新的视角。

关键词: 共同资产, 降价出售, 效用函数, 间接关联网络

Abstract: Financial market is a complex system, where banks not only connect with each other through direct lending, but also establish indirect correlationvia the investment market.A large number of researches have suggested that network resulted from interbank loans has some common topological properties. As shown in this paper, indirect correlation network between banks based on common assets is also worthy of discussion. The correlation between assets is established through fire sale and portfolios diversification, and then the indirect correlation between banks is constructed according to the portfolios chosen by risk aversion (CRRA) utility function.The influence of banks' investment behavior, endogenous correlation between assets and fire sale of common assets on the extent of indirect correlation between assets are tested respectively.Then the indirect correlation network between banks is set up with consideration of all the factors mentioned above and planar maximally filtered graph is used to filter redundant information. The importance of systemic important banks in the indirect correlation network is demonstrated. The small world phenomenon and scale-free phenomenon are also found by analyzing the indirect correlation network. On one hand, the observation in this paper makes the relationship between banks more clearly. On the other hand, a new perspective is also provided for regulators to promote the stability of banking system.

Key words: common assets, fire sale, utility function, indirect correlation network

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