中国商业银行竞争和风险承担——基于多决策渠道机制的研究

Competition and Risk-Taking among the Commercial Banks in China:A Study of the Multi-Decision Channel Mechanism

选取2007—2019年220家中国商业银行非平衡面板数据,考察银行竞争对风险承担的影响,进而讨论多样化经营、流动性创造、贷款损失准备计提与银行资本四个决策渠道如何调节银行竞争对风险承担的影响。研究发现:银行竞争通过资产组合和杠杆风险显著增加银行风险承担;贷款损失准备计提与多样化经营决策不但减少银行风险承担,而且抑制银行竞争对风险承担的影响;银行流动性创造能力强化银行竞争对风险承担的促进;银行资本决策强化全国范围内经营银行竞争对风险承担的影响。实证结果对于银行经营与银行规制政策的设计有意义。

With the unbalanced panel data of 220 Chinese commercial banks from 2007 to 2019,this paper examines the impact of bank competition on the risk-taking,and discusses how such four decision-making channels as diversified business,liquidity creation,loan loss provisioning,and bank capital moderate the impact of bank competition on the risk-taking.The study finds that bank competition significantly increases the bank risk-taking through the asset mix and leverage risks.The loan loss provisioning and diversified business decisions not only reduce the bank risk-taking but also inhibit the impact of bank competition on the risk-taking.The bank's ability of liquidity creation strengthens the contribution of bank competition to the risk-taking.For the nationwide operating banks,capital decisions reinforce the impact of competition on the risk-taking.The empirical findings have implications for the design of bank operation and regulatory policies.