影子银行、货币政策与商业银行系统性金融风险

影子银行体系与商业银行密不可分,影子银行体系积累的风险会危及商业银行、增加商业银行系统性金融风险。本文基于2007—2017年中国14家上市商业银行的微观数据,运用条件风险价值(CoVaR)法测算了商业银行系统性金融风险水平,研究了影子银行业务对商业银行系统性金融风险的影响及其深层次根源,并在此基础上进一步探究了货币政策对二者关系的调节效应。研究结果表明,首先,在全样本下,影子银行业务会显著增加商业银行系统性金融风险水平;通过将影子银行业务进一步分解为同业业务和委外投资业务两种成分,发现其委外投资业务是引发系统性金融风险的直接和主要诱因,而同业业务的影响效应相对较小。其次,异质性分析显示,不同的银行类型和不同的公司治理效率下,影子银行业务对商业银行系统性金融风险的影响效应存在差异。具体而言,对于规模较小和公司治理效率较差的商业银行,影子银行业务的不利影响更加明显,其中又以委外投资业务最为显著。最后,货币政策对影子银行业务与商业银行系统性金融风险之间的关系存在显著的逆向调节效应,且对委外投资业务的调节效应明显强于同业业务。本文的研究结论为强化影子银行的有效监管、促进金融体系去杠杆、防范和化解商业银行系统性金融风险的政策制定提供了参考。

自组织视角下的我国金融业

金融业具有以自组织特征为主、他组织特征为辅的双重特性。从自组织理论讲,我国政府对金融企业经营活动的干预应该消除,虽然政策金融的存在具有其合理性,但应尽可能地创造条件将政策金融市场化,且金融开放的步伐不能过早、过快。

A Study on Recombination Efficiency of Commercial Bank Branch Based on DEA Approach

For commercial bank branch, improving efficiency is very important for enhancement of overall efficiency and appraising efficiency is also an urgent problem to resolve. The paper compared the efficiency of recombining branch with the efficiency of no recombining branch of 23 commercial banks by using the approach of output-max CCR model of Data Envelopment Analysis （DEA）. According to the empirical results of the study, we can make some conclusions. Firstly, bank branch recombination is based on the comprehensive raising of human sources, pecuniary resources and material resources, and can be inefficient under the immature condition. Secondly, the efficiency of commercial banks can be improved enormously because their inner management and resource allocation in recombining are wasted largely. Thirdly, nowadays, commercial banks should emphasize on recomposing resources, mending technical ＆ managerial innovation and improving management level generally.