银行业市场结构与货币政策冲击——基于异质性银行的模型分析  

Banking Market Structure and Monetary Policy Impact:An Analysis Based on Bank Heterogeneity

作　　者：胡莹[1] 仲伟周[1] 

机构地区：[1]西安交通大学经济与金融学院

出　　处：《经济评论》2010年第2期136-143,共8页Economic Review

基　　金：教育部新世纪优秀人才计划项目(NCET-08-0450);西安交通大学"985工程"二期(07200701)的资助

摘　　要：通过构造货币政策冲击下的贷款市场总体均衡模型,研究在受到资本充足率和存贷比约束的条件下,银行最优信贷决策行为。分析发现,在垄断竞争的银行业市场结构背景下,银行间在价格竞争方面表现出"战略互补"特征和由此带来的"模仿效应"。因而,当银行满足资本充足率和存贷比要求时,银行业传导的货币政策信贷渠道是有效的,而当贷款市场中的银行不能满足资本充足率或存贷比要求时,信贷渠道则表现出无效性。This paper develops an aggregate equilibrium model in loan market impacted by monetary policy, to analyze the optimal credit decision of banks facing on the constraints of capital adequacy ratio and loan - to - deposit ratio. The results show that, in banking market with monopolistic competition structure, bank behaviors have the properties of ＂strategic complements＂ and ＂imitation effect＂ in price competition. Therefore, if and only if the standards of capital adequacy ratio and loan - to - deposit ratio are satisfied, the credit channel of monetary policy, transmitted by banking, is effective.

关 键 词：银行业市场结构 最优信贷决策 资本充足率 存贷比 

分 类 号：F832.4[经济管理—金融学] F822.0F224