利率市场化、存款保险制度与我国商业银行利差  

Interest Rate Liberalization,Deposit Insurance System and Interest Margins of China's Commercial Banks

作　　者：程孝强 姚定俊 钱圆圆 CHENG Xiaoqiang;YAO Dingjun;Qian Yuanyuan

机构地区：[1]安徽工程大学数理与金融学院金融工程系 [2]南京财经大学金融学院保险学系 [3]华东师范大学经济学院经济学系

出　　处：《金融监管研究》2021年第4期1-18,共18页Financial Regulation Research

基　　金：国家自然科学基金面上项目“时间不一致性偏好下保险公司最优分红、融资和再保险策略”(71671082);安徽工程大学引进人才科研启动资金项目“金融开放影响我国银行风险的机理、效应与政策优化研究”(2021YQQ014)的资助。

摘　　要：本文基于2010—2019年我国175家商业银行的微观数据,使用固定效应模型和倍差法(DID)实证研究了利率市场化和存款保险制度对我国商业银行利差的影响。研究结果表明,利率市场化通过提高贷款利率显著扩大了我国商业银行利差,而存款保险制度通过降低贷款利率显著缩窄了我国商业银行利差,但利率市场化和存款保险制度对大型商业银行利差的影响不明显。此外,运营成本、中间业务收入、隐含利息支付、成本收入比等因素,也会影响银行利差。Based on the microscopic data of 175 commercial Banks in China from 2010 to 2019,this paper uses fixed effect model and DID method to empirically investigates the impact of interest rate liberalization and deposit insurance system on interest margins of Chinese commercial banks.The results show that interest rate liberalization significantly widens the interest margins of China's commercial banks by raising the loan interest rate,while deposit insurance system significantly narrows the interest margins of China's commercial banks by lowering the loan interest rate.However,interest rate liberalization and deposit insurance system have no obvious impact on the interest margin of large commercial banks.In addition,operating cost,intermediary business income,implied interest payment,cost-income ratio and other factors will also affect interest margins.

关 键 词：利率市场化 存款保险制度 商业银行 利差 

分 类 号：F832.3[经济管理—金融学]