商业银行同业业务流动性风险研究——基于面板数据随机效应模型的分析

Study on the Liquidity Risk of Commercial Banks' Interbank Business——Analysis Based on Panel Data Random Effects Model

同业业务的发展在我国银行业资产规模高速扩张中扮演着重要的角色。同业业务作为银行间融通资金、调节流动性的工具,究竟是增强了商业银行的流动性,还是增加了流动性风险?本文基于2008—2016年34家上市商业银行数据,通过面板数据随机效应模型,分析了商业银行开展同业业务对其流动性风险的影响效应,以及不同类型的商业银行之间这一效应是否相同,最终得出同业业务扩张增加了商业银行的流动性风险,且这一效应在股份制银行内比在城商行内更为显著的结论。为此,商业银行应合理定位同业发展模式,谨慎理性开展同业业务,且不断强化风险控制手段;监管部门应不断加强同业监管,严防资金脱实向虚。

The development of interbank business plays an important role in the high-speed expansion of China's banking assets.The interbank business, as a tool for interbank financing and liquidity adjustment, whether enhances the liquidity of commercial banks,or increases liquidity risk? Based on the data of 34 listed commercial banks from 2008 to 2016, this paper analyzes the effect of commercial banks on their liquidity risk and the effect of different types of commercial banks through the random effect panel model. It is concluded that the expansion of interbank business increases the liquidity risk of commercial banks, and this effect is more significant in joint-stock banks than in city commercial banks. To this end, this paper puts forward: commercial banks should reasonably locate the inter-bank development model and be cautious and rational to carry out interbank business; continue to strengthen the risk control means. At the same time, regulators should continue to strengthen peer supervision, to prevent funds out of reality.