改进的效率测算模型、影子银行与中国商业银行效率

商业银行及其效率的高低是金融供给侧结构性改革的关键环节,而可以压缩的“坏”投入和影子银行对商业银行效率产生重要影响。本文首次建立理论模型并分析影子银行影响商业银行效率的路径;方法上,同时区分投入和产出的“好”或“坏”,拓展只区分产出的“好”或“坏”的效率测算模型;实证上,首次测算并分析“坏”投入、影子银行业务对商业银行利润、风险和效率的影响。结果表明:理论上,影子银行会同时增加风险承担和利润,但无法确定经风险调整后的利润增加能否提升效率;只区分产出的模型高估了效率,尤其是显著高估四大行和股份制商业银行第一阶段的效率,大型商业银行依靠网点的扩张不利于效率的提升;影子银行业务提升了四大国有银行尤其是股份制银行的效率,但对中小型商业银行效率影响较小。总的来看,压缩“坏”投入和规范影子银行是增加有效金融供给、优化金融供给结构和提升银行效率的重要途径。     

Branch banking network assessment using DEA: A benchmarking analysis—A note

This paper presents a benchmarking analysis of the branches and regional banks of a large French banking group. The analysis focuses on operational performance. Starting from an ‘individual’ diagnosis at branch level, a ‘network’ diagnosis is developed at regional bank level. The aim of the paper is to develop (i) operational performance indicators from the inefficiency score and (ii) a benchmarking procedure adapted to the network structure of the banking group under study. The banking group comprises 1611 branches that form 16 regional groups. The branches operate in six different business environments. A method is therefore required (a) to aggregate the inefficiency scores of individual branches to evaluate the regional groups and (b) to integrate the differences in environment into the evaluation procedure. Inefficiency scores are calculated using the data envelopment analysis (DEA) approach. This is based on the principle of comparison; once identified, the best practices are used to construct the efficiency frontier. Each entity is then positioned relative to that frontier. The model proposed in this paper determines one efficiency frontier for each type of environment. The results reveal that 30% of branches are efficient. Special emphasis is placed on quantifying productivity gains at regional bank level and on practicing intra- and inter-regional bank benchmarking.     

浙江省银行业全要素生产率研究——与美、德、韩的比较

本文以全国主要商业银行在浙江分支机构的总和为基本单位,同时选取美国、德国、韩国银行业作为比较单元,运用数据包络分析(DEA)中的Malmquist指数模型,实证了2000年至2008年期间浙江银行业全要素生产率的变化情况。结果显示,与其他三个经济体的银行业比较,浙江银行业效率较低;样本期内浙江银行业规模效率有较快的改进,但技术进步效率则有所恶化;进一步的实证表明,在样本期的前半段,浙江银行业的效率尚不及其他三个国家的银行业在上世纪90年代相应年份的水平,后期差距有所缩小。     

基于多阶段超效率DEA模型的银行业效率研究

国内现有的银行DEA效率研究文献中基本存在三个问题,一是不同的投入产出变量选择标准导致各研究结果之间缺乏比较的基准,二是单一的效率指标无法反映银行的金融服务特征,三是传统的DEA效率无法对有效率银行进行再排序。本文通过对银行综合效率的合理分解构建了多阶段超效率DEA模型,可以较好地解决这些问题。同时运用该模型对中国银行业效率进行了实证检验,得到比较有价值的研究结论。     

The Impact of Mergers and Acquisitions on the Efficiency of the US Banking Industry: Further Evidence

Abstract:  Using the Stochastic Frontier Approach (SFA), this study investigates the cost and profit efficiency effects of bank mergers on the US banking industry. We also use the non-parametric technique of Data Envelopment Analysis (DEA) to evaluate the production structure of merged and non-merged banks. The empirical results indicate that mergers have improved the cost and profit efficiencies of banks. Further, evidence shows that merged banks have lower costs than non-merged banks because they are using the most efficient technology available (technical efficiency) as well as a cost minimizing input mix (allocative efficiency). The results suggest that there is an economic rational for future mergers in the banking industry. Finally, mergers may allow the banking industry to take advantage of the opportunities created by improved technology.     

银行竞争提高了企业投资水平和资源配置效率吗？——基于分支机构空间分布的研究

银行贷款是我国企业融资的重要方式,在企业生产经营中发挥着举足轻重的作用。2006年和2009年,我国先后两次放松了商业银行分支机构市场准入规制,银行分支机构空间分布发生了较大变化,银行竞争水平和服务实体经济能力明显提升。本文利用2001-2012年国家统计局工业企业数据,以企业周边银行分支机构的数量衡量银行竞争水平,研究银行竞争对企业投资的影响。研究发现,银行分支机构数量的增加显著提高了企业投资水平和投资效率。进一步研究表明,银行分支机构数量增加对企业投资效率的提升作用主要表现在投资不足的企业和非国有企业中,企业融资约束降低和代理冲突减弱是银行竞争提高企业投资效率的主要原因。本研究拓展了银行竞争以及企业投资和资源配置效率的相关文献,对供给侧结构性改革和银行业高质量发展具有启示意义。     

Financial and economic performance of major Brazilian credit cooperatives

The credit union's main functions are the provision of individual financial loans based on collective savings, reaching up to provide full banking services, with expansion of its social function. Cooperatives are an alternative to supply a credit demand in the market, because a third of the municipalities have no bank branches. Although the participation of cooperatives in credit operations is still small compared to the Brazilian national banking system, its continued growth demonstrates the importance of this sector. In this sense, the analysis of the performance of these cooperatives becomes relevant to the extent that incentives to industry expansion differ from other financial institutions. In this context, this study aimed to analyze which the financial and economic performance of Brazil's largest credit unions. This performance analysis was performed using the indicators proposed by the CAMEL model, then the data envelopment analysis (DEA). It can be seen that there is a positive relationship between the use of variables in the model and the measurement of financial performance of credit unions. Moreover, according to the results, it can be observed that Uniprime Northern Paraná, Sicoob Cocred and Sicredi North RS/SC were cooperatives that stood out as efficient.     

我国商业银行运行效率的DEA实证分析

本文采用DEA的基本模型对我国12家商业银行2004年和2005年的总效率、纯技术效率和规模效率进行了实证分析。结果表明,规模大的国有商业银行总效率要高于股份制商业银行。银行资产规模是影响商业银行运行效率的重要因素,市场份额与银行效率呈正相关,商业银行规模过小或规模过大导致的规模不经济同时存在。     

BANK FAILURE AND CONTAGION EFFECTS: EVIDENCE FROM HONG KONG

In this paper the influence of three Hong Kong bank failures on stock prices of the colony's banking industry is examined. As deposit insurance is nonexistent in Hong Kong, the world's fourth-largest financial center, an interesting environment is provided for testing contagion effects of bank failure on other healthy financial institutions. By examining contagion effects in an environment void of explicit deposit insurance, this study should provide interesting insights into the resiliency of modern-day financial markets. In turn, insights should also be provided into debates concerning the role and reform of deposit insurance and the rationale for regulation of the financial services industry in general. The results indicate that unexpected bank failure causes significant negative stock price reactions within the banking industry; yet, some banks are less affected than others.     

The effects of bank and nonbank provider locations on household use of financial transaction services

We examine the influence that geographic proximity to bank branches and nonbank financial providers has on use of financial transaction services among U.S. households. We specify a bivariate probit model of bank account ownership and nonbank transaction product use to reflect the joint nature of these choices, and estimate the model on a large, nationally representative dataset. Our results indicate that households with reasonable geographic access to bank branches are more likely to have a bank account and less likely to use nonbank transaction products. The influence of bank and nonbank provider locations is fairly modest overall, although effects are bigger for households that are more likely to be on the margin of bank account ownership. Even among such households, however, the effects of bank and nonbank provider locations on financial transaction services use are not as large as those associated with key household-level attributes, such as income, education, or race.     

基于CCR模型的中部地区城市商业银行效率研究——选取三套指标体系的比较分析

本文以中部地区八家城市商业银行、三家上市城市商业银行银行和四家国有银行为样本,运用DEA分析方法中的CCR模型,选取6个指标,对其中的存款和贷款指标投入产出范畴进行调整,形成三套对照指标体系组。DEA分析结果显示：在三类银行中比较发现,中部地区城商行效率改善明显,“吸储”和“放贷”能力较强,但是盈利能力较低。基于前述对比分析,提出中部地区城商行提高效率首先要提高盈利能力,而关键又要引进高素质人才和适当提高非利息收入比重。研究方法上,笔者建议要建立并完善“效率”概念体系,主张借助定量工具以推进银行效率的定性研究。     

Estimating the degree of operating efficiency gains from a potential bank merger and acquisition: A DEA bootstrapped approach

We propose a bootstrapped Data Envelopment Analysis (DEA)-based procedure to pre-calculate and pre-evaluate the short-run operating efficiency gains of a potential bank merger or acquisition (M&A). As an illustrative example, we apply our proposed procedure to investigate the degree of operating efficiency gains of 45 possible bank M&As in the Greek banking industry over the period from 2007 to 2011. The results reveal that a year before and a year after the initiation of the Greek fiscal crisis, the majority of the potential bank M&As under examination were unable to generate short-run operating efficiency gains. In addition, our results for 2011 indicate that the majority of bank M&As can lead to short-run operating efficiency gains. Finally, the empirical findings support the view that a merger or acquisition between efficient banks does not ensure an efficient bank M&A.     

Determinants of bank efficiency during unstable macroeconomic environment: Empirical evidence from Malaysia

The present study investigates for the first time the efficiency of Malaysian banking sector around the Asian financial crisis 1997. The efficiency estimates of individual banks are evaluated by using the Data Envelopment Analysis (DEA) approach. To examine the robustness of the estimated efficiency scores under various alternatives and to differentiate how efficiency scores vary with changes in inputs and outputs, the present study focuses on three major approaches viz., intermediation approach, value added approach, and operating approach. The analysis further links the variation in calculated efficiencies to a set of explanatory variables, i.e. bank size, profitability, and ownership. The empirical findings clearly bring forth the high degree of inefficiency in the Malaysian banking sector, particularly a year after the East Asian crisis. The results suggest that the decline in technical efficiency is more abrupt under the intermediation approach relative to the value added approach and operating approach. The regression results focusing on bank efficiency and other bank specific traits suggest that efficiency is negatively related to expense preference behavior and economic conditions, while bank efficiency is positively related to loans intensity.     

Internal and external analysis of community banks' performance

This study explores the efficiency of US community banks and factors that affect it. We present a slacks-based measure model for data envelopment analysis to analyze the efficiency of 3171 community banks in the US, and then conduct a panel data analysis to investigate the factors that affect banks' efficiency. The results show that bank size, community size, and unemployment rate of the region where the community bank is located are positively related to the efficiency, whereas relative affluence of a community has a negative relationship with the community bank efficiency. In addition, community banks providing real estate loans or diversifying their loan services perform better than those concentrating on agricultural loans, which account for a large proportion of the loans provided by US community banks whose traditional role is to provide banking services to rural communities and act as major credit providers for agricultural producers.     

Collateralization of business loans: Testing the prediction of theories

Using confidential data on a large sample of relationship lending, we analyze the determining factors of the collateralization of business loans from banks, distinguishing between firms with observable risk and firms with hidden information. We achieve three main results. First, we provide evidence that observably riskier borrowers are encouraged to give more collateral to banks to obtain a loan, whereas firms with hidden information are less risky borrowers, offering collateral to signal their quality. Second, we show that relationship banking has a direct impact on the use of collateral and produces moderating effects on the other determining factors. Finally, we observe that distant bank branches—i.e., branches that encounter greater difficulties collecting soft information and obtaining site-specific data from headquarters—are more likely to require collateral than local bank branches.     

Resolving the deposit dilemma: A new DEA bank efficiency model

One of the weaknesses of current bank efficiency models is a disagreement as to the role of deposits in the bank production process. Some models view deposits as an input, while others view them as an output. Such disparity of approaches results in inconsistent efficiency estimates. In this study we propose an alternative Data Envelopment Analysis (DEA) bank efficiency model that treats deposits as an intermediate product, thus emphasizing the dual role of deposits in the bank production process. Consequently, the effect of the amount of deposits on bank efficiency depends on the efficiency at both stages of the bank production process. The main advantage of our model is that it does not require a researcher to make a judgment call as to whether having more (production approach) or less (intermediation approach) deposits is “better” for bank efficiency. Our unified framework has the potential to produce more consistent efficiency estimates.     

Price satisfaction and personnel efficiency as antecedents of overall satisfaction from consumer credit products and positive word of mouth

The paper aims to explore the potential impact of ‘bank personnel efficiency’ and ‘price satisfaction’ on overall customer satisfaction of consumer credit products and positive word of mouth (WOM). Furthermore it aims to provide bank managers with useful insights into the development of high quality relationships with customers. ‘Personnel efficiency’, is related to the human factor of service quality, while ‘price satisfaction’ refers to the customers’ subjective view of the bank's pricing policy. The research involved a review of the available literature on service quality dimensions and their effect on satisfaction and WOM. For the collection of data, a survey was designed and conducted in the greater area of Athens, Greece. The research questionnaire was administered by means of personal interviews to 750 bank customers. Data analysis, using structural equation modelling, suggests that ‘personnel efficiency’ and ‘price satisfaction’ are antecedents of overall ‘customer satisfaction’, which is a prerequisite for positive ‘word of mouth’.     

European Bank Performance Beyond Country Borders: What Really Matters?

The paper analyzes bank performance in the context of the integrated EuropeanUnion market and its member countries. First, the paper investigates the technicalefficiency of banks in each country sample using a Data Envelopment Analysis(DEA) model incorporating only banking variables. Then, a second DEA modelis defined incorporating environmental factors together with banking variables inorder to standardize the country-specific environmental conditions. Based on thesemodels, the paper systematically analyzes the efficiency position for each of theEuropean banking industry if average banks decide to operate in any other country.The results indicate that adverse (advantageous) environmental conditions are apositive (negative) factor for the home banking industry and being technicallyefficient appears to be a significant deterrence to foreign competition.     

Eliminating entry barriers for the provision of banking services: Evidence from ‘banking correspondents’ in Brazil

This paper shows that the contractual arrangement of ‘banking correspondents’ has eliminated entry barriers for the provision of banking services in Brazil. With the bank correspondents, banks are allowed to reach the almost 2200 municipalities without bank branches in 2000, connecting 45 million people to the financial sector. The evidence is based on the estimation of an entry model of financial providers in Brazilian municipalities. I estimate a zero population entry threshold for banking correspondents for the period from 2002 to 2007. The estimated population entry thresholds for bank branches in the same period are relatively stable at approximately 8000–9000 people. The population entry thresholds for the second to fifth players for banking correspondents are also consistently lower than those for bank branches.     

特定金融服务与专业化经营：齐鲁银行“科技金融特色支行”案例

特定金融需求需要相对专业化的经营模式来满足。齐鲁银行通过设立专门的科技金融特色支行，开展标准化、专业化经营，满足了科技型企业特殊的融资需求。齐鲁银行的实践表明，将个性化、特殊化的需求进行标准化转换，有利于提高效率、降低风险、实现规模经济。