我国商业银行效率评价及实证分析

内容提要：本文运用数据包络法对我国十二家主要商业银行04—06年的效率状况进行了定量考察,并在此基础上探讨了我国国有商业银行效率低下的原因,提出了提高我国银行业效率的途径。     

浅谈西方失业理论在中国的实证分析

造成目前我国大量工人失业的根本原因是我国庞大的劳动力供应总量与相对较小的国民经济产业规模之间的矛盾性.市场经济对效率的追求和我国经济发展动力机制改革的滞后则把失业问题公开化和严重化了.解决我国的失业问题是一个系统性的工程,需要社会各界的共同努力.     

区间DEA模型求解算法及其在项目投资效率评价中的应用

当决策单元的变量取值区间范围较大时,经典区间DEA求解算法求得的相对效率区间长度也可能较大,对决策单元有效性的解释力低,很难直观反映相对效率的大小。将决策单元的变量区间划分为若干个子区间,分别计算决策单元在各子区间上的DEA效率,进而求得综合效率区间,作为评价决策单元有效性的基准。综合效率区间的区间长度比经典算法的求解结果小,将新算法应用于投资项目的效率评价,便于对投资项目的效率大小进行比较,进而为项目投资决策提供科学依据。     

Slack free MEA and RDM with comprehensive efficiency measures

This paper extends two directional distance function models, the Multi-directional Efficiency Analysis (MEA) Model and the Range Directional Model (RDM), in order to account for any type of technical inefficiency, i.e. both directional and non-directional inefficiencies. We first focus on the variable returns to scale (VRS) case, because both VRS-MEA and RDM are translation invariant models, which mean that both models are able to deal with negative data. Our main result is the definition of a new comprehensive efficiency measure which is units invariant and translation invariant and covers both models. Secondly, we introduce the RDM model under constant returns to scale (CRS) together with a new comprehensive efficiency measure.     

盈余质量对资本配置效率的影响及作用机理

本文以2004-2007年沪深两市的上市公司为研究样本,在Richardson、verdi研究的基础上,对中国现实制度背景下盈余质量和资本配置效率两者的关系进行了探讨.不同于国内外的现有研究,本文不仅检验了盈余质量是否影响上市公司的资本配置效率,还对盈余质量如何影响上市公司资本配置效率进行了检验.检验结果表明,盈余质量的改善一方面能直接提高上市公司的资本配置效率,另一方面则能够通过降低代理成本间接促进上市公司资本配置效率的提高.这一研究结论对理解盈余质量在上市公司资本配置效率中的作用,以及了解盈余质量与上市公司资本配置效率之间的中介传导机制和路径模式均具有较强的现实意义.     

Two-stage evaluation of bank branch efficiency using data envelopment analysis

There are two key motivations for this paper: (1) the need to respond to the often observed rejections of efficiency studies’ results by management as they claim that a single-perspective evaluation cannot fully reflect the operating units’ multi-function nature; and (2) a detailed bank branch performance assessment that is acceptable to both line managers and senior executives is still needed. In this context, a two-stage Data Envelopment Analysis approach is developed for simultaneously benchmarking the performance of operating units along different dimensions (for line managers) and a modified Slacks-Based Measure model is applied for the first time to aggregate the obtained efficiency scores from stage one and generate a composite performance index for each unit. This approach is illustrated by using the data from a major Canadian bank with 816 branches operating across the nation. Three important branch performance dimensions are evaluated: Production, Profitability, and Intermediation. This approach improves the reality of the performance assessment method and enables branch managers to clearly identify the strengths and weaknesses in their operations. Branch scale efficiency and the impacts of geographic location and market size on branch performance are also investigated. This multi-dimensional performance evaluation approach may improve management acceptance of the practical applications of DEA in real businesses.     

Production efficiency in Indian agriculture: An assessment of the post green revolution years

In this paper we use the nonparametric method of Data Envelopment Analysis (DEA) to obtain Pareto-Koopmans measures of technical efficiency of individual states over the years 1970–71 through 2000–01 in a multi-output, multi-input model of agricultural production. We disaggregate overall efficiency into two distinct components representing output and input efficiencies and identify the contribution of individual outputs and inputs to the measured level of overall efficiency. Because introduction of modern inputs has been a major component of the process of modernization of Indian agriculture, we examine to what extent different states succeeded in utilizing the modern inputs compared to the traditional inputs. Variations in the DEA efficiency scores across states and over years is explained in terms of differences in various institutional and demographic factors in a second stage regression analysis.     

完善我国民事举证时限制度的思考

举证时限制度是证据制度中的焦点问题之一.最高人民法院<关于民事诉讼证据的若干规定>首次以司法解释的形式,确立了我国的举证时限制度.本文从对举证时限制度的理解出发,借鉴西方国家举证时限制度的主要立法例,分析我国民事举证时限制度的相关规定,并在实证研究的基础上,提出了一些完善我国民事举证时限制度的思考.     

制度效率与经济效率比较分析

新制度经济学把以往对效率的关注点从经济效率转移到制度效率上 ,是经济学的一大突破。关于制度效率 ,人们的评价标准虽不尽相同 ,但大多是与经济效率联系在一起的。可见 ,制度效率与经济效率是密切相关的。对二者关系的比较分析表明 ,要尽可能实现制度效率与经济效率的协同改善与提高 ,就必须消除由制度非效率所产生的经济效率低下的状况 ,为此 ,必须有意识地降低制度成本 ,提高制度效率