中国银行业系统性风险研究*——宏观审慎视角下的三个压力测试

本文在传统网络模型中加入去杠杆—降价抛售机制,研究以下两类宏观经济冲击对银行体系系统性风险的影响。从房地产贷款违约压力测试看,房地产贷款违约引起的传染风险是系统性风险的重要来源;传染损失比重和去杠杆次数结果则表明,2007年我国银行面临的传染风险最高,之后呈现快速下降的趋势;参数敏感性结果表明,网络模型中去杠杆、降价抛售以及破产对传染风险的相对重要性依次递减。从地方政府融资平台贷款违约压力测试看,大型商业银行受平台贷款违约的影响小于股份制和城市商业银行。此外,平台贷款违约概率存在阈值,在阈值之上银行损失和倒闭急剧攀升。基于银行倒闭压力测试,量化出本文的网络模型相对于传统网络模型的优越性。本文还发现中国金融体系的系统重要性与系统脆弱性指标的“错配”对于维持金融体系稳定非常关键。     

银企关系对制造业中小企业贷款利率的影响研究——来自江苏徐州和广西柳州典型样本的证据

通过对江苏徐州和广西柳州典型样本的调研发现,在中小企业贷款中,实际上存在着"绑定效应",当中小企业在银行的贷款占自己资金缺口的比重较大时,出于风险控制和攫取更多剩余的目的,银行会提高贷款利率;当中小企业的融资渠道较多时,银行贷款利率反而因为中小企业的融资需求旺盛而提高。用中小企业与银行的合作年限、中小企业在该银行贷款比重等进行衡量的银企关系深度越强,中小企业银行贷款利率反而越高,而用中小企业在银行开办的其他业务数量来衡量的银企关系的广度越强,中小企业贷款的利率则会越低。     

Implications of Shifting Retail Market Shares for Loan Monitoring in a Dominant‐Bank Model

This study utilizes a dominant‐bank model to investigate whether an increase in retail loan and deposit‐market concentration increases the incentives for both dominant and fringe banks to monitor their loans and thereby improve the quality of their loan portfolios. It shows that the effects on banks' incentives to engage in monitoring aimed at eliminating loan default losses in response to increased concentration of retail market shares of loans and deposits depend critically on whether the banks' asset and liability choices are interdependent. When the asset and liability decisions of both dominant and fringe banks are independent, a shift in market shares in favor of the dominant bank generates a straightforward increase in the incentives of all banks to monitor their loans. Under portfolio interdependence, the effects on monitoring outcomes at dominant banks and at banks within the competitive fringe depend on more complicated configurations of parameters. This fact helps explain mixed empirical evidence on the relationships between bank competition and measures of bank risk and soundness.     

国有商业银行与股份制商业银行的长期贷款特征差异研究——基于我国上市公司长期借款数据

选择2009年上市公司的银行贷款为研究样本,将其分为仅获得国有商业银行和仅获得股份制商业银行贷款的两组相对立的样本,对其进行独立样本T检验,研究两种性质银行在选择贷款客户、贷款定价上的差异。以期对我国金融政策的完善方面提供有益的借鉴。     

Commercial banks and real estate lending: The Texas experience

This paper examines the performance of Texas commercial banks specializing in mortgage lending during the difficult times of the late 1980s and early 1990s to investigate how representative their experience as compared with that of banks concentrating in real estate lending across the country. The results show that Texas REBs performed very poorly during the 1980s and early 1990s, but this was because the Texas REBs were clearly different from the majority of the banks classified as REBs in the rest of the country. In contract to non-Texas real estate specializing banks, those in Texas banks put substantial assets into much riskier construction and development loans, and in loans on commercial property, such as office buildings, hotels and shopping centers. In a poor real estate market, these loans performed very poorly. The analysis indicates that the Texas experience is not a basis for rejecting the view that the commercial bank industry can safely replace the declining thrift industry as a major source of residential mortgage financing.     

我国银行信贷与房地产价格关系研究

文章对银行信贷与房地产价格之间的互动关系进行了完整的作用机制分析,并使用更细致和精确的数据建立VAR模型进行了实证研究。研究发现,银行信贷扩张与房地产价格上涨具有明显的相互推动和加强的作用。具体而言,房地产开发商贷款和个人购房贷款对房价都具有显著的正向影响,同时对来自房价冲击的响应也都是正向的。并且,在房价持续高速上升时期,房地产贷款规模对房价的影响力明显超过贷款利率。     

我国房地产贷款证券化探讨

通过分析美国次贷危机及其对我国房地产贷款证券化的启示,从多个方面剖析了我国房地产贷款证券化中存在的问题,提出了诸如发挥政府作用、改善金融环境、组建专门的住房抵押证券公司、完善风险机制等一系列有效防范和控制新时期贷款风险和完善证券化市场应采取的措施和对策。     

金融中介及关系银行——基于广东外资企业银行融资数据的研究

本文根据外资银行和国有商业银行向在中国境内的外资企业提供的外币贷款和人民币贷款的数据 ,对金融中介及关系银行进行了实证研究。我们的主要结论有两点 :第一 ,企业与银行建立起来的金融业务关系越长久 ,那么其所获得的外币贷款利率就越低。这是对金融中介理论的支持。另外 ,外资控股、第三方担保等因素 ,也具有降低外币贷款利率的效应。第二 ,人民币贷款的利率随着外资企业与更多的银行建立和保持合作关系而降低。人民币贷款主要是由我国商业银行提供。如果商业银行间的竞争仅仅是用来作为信贷定价的主要决定因素 ,而不是用来推进金融创新 ,提供高质量的金融产品和服务 ,那么这将会损害我国商业银行的获利能力并进而影响金融系统的健康发展。     

积极的小微企业信贷政策研究

小微企业占我国企业群体的绝大部分,是社会财富的主要创造者,也是吸纳就业的主渠道,在我国国民经济中占有重要地位,但小微企业贷款难问题突出.小微企业贷款难,既有企业自身和商业银行方面的原因,更有存款准备金率政策对小银行存在歧视、资本占用系数的规定缺乏支持小微企业贷款的充分安排、贷款指标没有充分向小微企业倾斜等信贷政策方面的原因.因此,应牢固树立“小微企业贷款≠高风险贷款”的理念,将主营小微企业贷款的小银行当作发展小微企业的战略重点,降低小银行的存款准备金率,降低小企业贷款的风险权重和资本匹配系数,信贷指标分配向小微企业贷款倾斜,实施积极宽松的小微企业信贷政策.     

商业银行信贷配给对中国房地产业波动的影响*

商业银行信贷配给控制中国房地产业信贷规模和结构,造成供给和需求的规模与结构扭曲,影响货币政策和财政政策的调控效果,容易引起房地产业波动。本文通过构建信贷配给模型,测算不同波动时期当中,商业银行信贷配给程度的变化趋势,以及对房地产业的影响。实证结果显示,信贷配给程度的变化与房地产业波动显著相关,信贷配给改变了投资和消费在推动房地产产出过程中的结构,并制约路径依赖对产出的影响,同时影响财政政策和数量型货币政策稳定房地产业的效果。本文认为,可以通过逐渐弱化商业银行在房地产金融市场中的垄断地位,丰富房地产信贷供给层次和结构,以及加强信贷供给监督来缓解信贷配给的消极作用。     

建立高校助学贷款风险防范机制的构想

高校贫困生助学贷款政策的正确实施,关系到目前我国高校贫困学生的正常学习、教育公平和社会公平大局。国家助学贷款政策推出已经十年,历经调整变化,但仍然存在一些明显的机制缺陷,本文认为要实现高校贫困生助学贷款的可持续发展,建立高校资助贷款的风险防范机制十分必要。主要从以下五个方面着手：一是构建多元化的资助贷款体系,实现资助贷款主体多元化、资助手段多样化、还贷方式的多样化,使资助贷款更加人性化、科学化;二是建立资助贷款风险的顸警机制,建立“双重”环节的顸警机制,加强各参与方的良性互动;三是建立政策性资助贷款担保体系,通过建立政策性担保机构、建立银行、担保机构与政府共担风险机制;四是完善资助贷款的激励一约束机制,强化风险主体的责任意识;五是完善资助贷款的支持体系。     

提高银行资本能缓解小微企业融资难问题吗*——基于小微企业贷款风险权重降低改革的讨论

本文以银行资本为切入点,从银行提供小微企业贷款的角度,探讨解决小微企业融资难问题可能的路径。新资本监管降低了小微企业贷款的风险权重,改革前后可以视为“准自然实验”。通过构建双重差分模型,本文深入研究银行资本与小微企业贷款的关系,并对“小银行优势理论”进行再检验。结果表明：（1）小微企业贷款风险权重优惠政策显著促进了银行发放小微企业贷款,特别是对小银行来说,政策效果更好;（2）在优惠政策实施之前,资本水平较高的银行会紧缩小微企业贷款,而且这种惜贷行为在大银行中尤为突出;（3）在优惠政策实施之后,资本水平越高的银行对小微企业贷款的偏好反而越强,且这一促进作用的力度在大银行中更为显著。因此,应当继续执行小微企业贷款风险权重优惠,提高银行资本水平,构建多层次银行金融体系,以缓解小微企业融资难问题。     

银行效率与不良贷款冲击效应的实证研究——基于SFA测度分析的应用

本文以1999～2010年12年间国内14家商业银行样本数据为基础,立足于随机前沿效率分析原理,利用参数估计SFA分析法,评估分析金融改革以来银行业不良贷款与银行效率分布及演化趋势。研究表明:(1)是否引入不良贷款变量对银行成本效率测算存在显著影响。(2)在引入不良贷款的估计模型中,国有商业银行成本效率存改善趋势,否则,呈下降趋势,而股份制商业银行则无此特点;股份制银行成本效率整体高于国有商业银行。(3)未发现资产规模、权益与银行成本效率之间的显著性相关关系,但不良贷款对成本效率具有负效应。(4)在中国银行业利润效率测算中,则不适合引入不良贷款变量。     

The effect of economic policy uncertainty on bank valuations

This article examines how economic policy uncertainty (EPU) affects bank valuations. Using a large sample of banks over a long period, we find that EPU has a negative effect on bank valuations. One explanation for this result is that EPU reduces bank loan growth, and lower loan growth then leads to lower bank valuations. Consistent with this explanation, we find that the negative effect of EPU is more pronounced for banks with a higher ratio of loans to total assets.     

基于同业竞争的中小企业贷款定价模式设计

利率市场化改革备件下,本文站在银行的角度建立一个适合中小企业的贷款定价模型,以此帮助银行更好地为中小企业融资服务。本文首先基三种贷款定价模式的比较研究,归纳提出了适合区域性商业银行特征的中小企业贷款定价理念——“基于同业竞争的贷款定价法”;其次,探讨了影响商业银行贷款定价机制的微观因素,如资金成本、违约风险、预期收益等;第三,综合市场结构和风险度量两个主要因素,利用审断回归分析建立同业竞争贷款定价模型;最后,采用某区域性商业银行的数据来进行实证检验,从而说明使用这种基于同业竞争的贷款定价模型是解决目前中小企业融资难问题的一条可行的道路。     

微小企业融资困境与信贷机制创新

微小企业融资长期被正规金融机构边缘化的原因在于为其提供贷款"成本高、抵押难、风险大".与大银行相比,中小银行在获取"软信息"、降低单位交易成本、防范信用风险等方面更具比较优势,中小银行通过信贷机制?的创新向微小企业提供贷款能按照商业可持续原则实现金融机构、微小企业、政府等主体的共赢.本文基于数理模型简要论证了微小企业融资难,且其融资困境的化解在于信贷机制的创新的问题.在此基础上通过对台州市商业银行小本贷款案例分析得出相应结论,为微小企业融资市场正在不断深化的中国提供一些有益的启示.     

中国国有企业不良负债的实证分析

90年代以来 ,随着金融市场化推进和宏观经济的波动 ,中国的银行系统出现了严重的不良资产问题。国有企业使用全国银行 80 %以上的贷款 (中国人民银行 ,1 997)。国有企业不良负债数量较多 ,是造成金融风险增大及宏观经济波动的重要原因。本文根据抽样调查数据对国有企业不良负债做出估测 ,对不良负债的形成原因提出经验证据 ,并对解决不良负债的政策效果作出分析。一、对国有企业不良负债的估测近年来关于国有企业不良负债的讨论很多。但是 ,不良负债程度到底如何 ,很不清楚。国有商业银行绝大部分贷款贷给国有企业 ,国有企业不良负债状况应…     

Banking Competition,Risk and Regulation*

In a dynamic framework, commercial banks compete for customers by setting acceptance criteria for granting loans, while taking into account regulatory requirements. By easing its acceptance criteria a bank faces a trade‐off between attracting more demand for loans, thus making higher per‐period profits, and deterioration in the quality of its loan portfolio, thus tolerating a higher risk of failure. Our main results state that more stringent capital adequacy requirements lead banks to set stricter acceptance criteria, and that increased competition in the banking industry leads to riskier bank behaviour. It is shown that risk‐adjusted regulation is effective. In an extension of our basic model, we show that it may be beneficial for a bank to hold more equity than prescribed by the regulator, even though issuing equity is more expensive than attracting deposits.     

The bank lending channel and Swiss banking: a survey-based approach

This paper investigates the issue of the bank-lending channel in Switzerland. Using survey data to reflect loan supply and demand factors, we investigate the dynamic behaviour of aggregate loans in a VAR setting. Our findings indicate that higher interest rates lead to tightened loan approvals, and liquidity is a binding constraint as the contraction in deposits exceeds the reduction in loan growth following a monetary shock. Thus, banks’ actions seem to aggravate (ameliorate) the initial effects of higher (lower) interest rates on aggregate demand.     

Real estate prices and systemic banking crises

The collapse of real estate prices has historically jeopardized banking stability and triggered systemic banking crises. This paper studies risk contagion in a banking system in real estate price shock by adopting complex network theory. Modelling the real estate-related asset as a common exposure of banks to the real estate market, we propose a model that incorporates two main risk contagion channels, i.e., the financial network and asset fire sales, and reveal how the real estate price shock is transmitted and propagated across banks. We demonstrate that banking stability is highly sensitive to the real estate price shock. Moreover, due to the particularly low liquidity of the real estate market, the asset fire-sales of real estate assets overwhelms the financial network, playing the dominant role in risk contagion. Our model can be adopted by regulators to conduct stress testing and to forge effective risk management strategies.