《港口考虑运输波动时最佳能力确定的一种方法》

<正> 一般人们在讨论港口能力问题时,都以排队论模型来分析。为了利用排队论的方法,分析对象成为船舶与泊位的关系,常常是假设船舶按泊松分布到达,占用服务台时间服从K阶爱尔朗分布,有S个服务台,系统容量为无穷大。这一系列的假设在实际中会遇到许多困难。例如,港口对于船舶装卸时间的分布,往往很难用一个合适的分布来描述。如果我们希望从货物的抵港吨数及港口的综合通过能力来考虑问题,排队论中的船     

基于排队论的公交车辆中途站点优化分析 ——以西安市长安路北门及小寨公交站为例

本文将公交车辆和中途停靠站点模拟为一个多通道服务台的排队系统,从理论上计算中途停靠站点最大可容纳停靠线路数,为公交站台停车位设置提供理论依据,运用模型对西安市北门及小寨站点进行实例分析,从计算结果对中途站点的停车位数和设置方式进行双重优化,有效控制站点处车辆排队长度.     

高校图书馆经费的合理利用——排队论在服务台设置中的应用

以高校图书馆经费的合理利用问题为研究对象,利用排队论在设置图书馆客户服务台方面的应用,建立了优化配置客户服务台的模型.为合理利用经费设置服务台提供了数学依据.     

基于系统论的银行排队模型与敏感性分析

我国加入WTO以来,国内的金融市场对外开放的程度逐步加深,外资金融机构大量进入。我国商业银行传统的业务水平和管理模式也因此受到很大的冲击,整个银行业的竞争更加激烈,个人银行排队问题成为了亟需解决的问题。本文提出了排队论及其三个组成部分以及相对应的性能指标,并利用系统论中的排队模型对个人银行服务系统的等待问题进行分析。然后本文从运筹学和经济学的角度,以服务时间和服务台数量为主要变量进行敏感性分析,提出对应的优化系统、提高效益的政策建议。     

绿色信贷与银行经营效率的交互跨期影响研究——基于动态面板系统GMM模型

本文基于2009-2019年我国16家商业银行数据,运用动态综合评价模型计算出各银行的经营效率评价值,与绿色信贷比率建立动态面板系统GMM模型,研究绿色信贷与银行经营效率的具体关系.实证分析表明银行经营效率与绿色信贷存在交互跨期关系:绿色信贷会正向影响银行经营效率且这种影响在滞后一期和两期更显著,然而银行经营效率会负向影响绿色信贷投放且有动态连续性.     

食堂就餐排队管理体系的优化研究

在分析某高校食堂排队情况的基础上,采用Enterprise Dynamics仿真软件对食堂就餐排队系统进行仿真研究,通过仿真分析食堂排队系统存在的问题,进而提出两种改进方案.仿真结果显示这两种的方案是可行的,且方案一使各队列的平均等待时间减少了50秒~150秒,方案二各队列的平均等待时间减少了80秒~200秒.文章的研究方案可有效提高食堂排队系统的服务效率、减少等待时间,同时也为其他餐饮业的排队系统分析与改善提供了借鉴与参考.     

基于排队论的仓储企业物流中心服务系统优化研究

优化运输车辆的作业时间,是提高物流服务质量的有效途径之一。文章根据客户对时间敏感度的不同,将进仓库运输的车辆分流成了两部分;依据排队论理论,将仓储运输车辆排队系统看作是由两个独立的排队系统组成,建立了相应的数学优化模型;探讨了该模型求解算法,以使系统中的客户时间成本总和最小。     

银行智能办公信息系统的设计与研究

1、引言银行是社会金融和经济的一个窗口 ,它的办公效率的高低直接影响到银行在社会上的信誉与银行的经济效益。银行信息管理智能化和现代化水平的提高对银行办公效率的提高起着至关重要的作用。因此建立银行智能办公信息系统是目前银行系统所期待和需要的。2、银行智能办公信息系统概述2 .1　智能办公信息系统概念2 .1.1　智能管理。智能管理是人工智能与管理科学、知识工程与系统工程、计算技术与通信工程、软件工程与信息工程等多学科、多技术相互结合、相互渗透而产生的一门新技术、新学科。它研究如何提高计算机管理系统的智能水平 ,以…     

浅谈当前临柜排长队存在的问题及对策

<正>笔者发现窗口出现排长队办理业务的现象,尤其是星期一窗口排队问题更是突出,要解决好窗口排队的问题,笔者认为解决排队问题有以下措施:1.增加服务窗口,提高窗口服务质量。临柜人员应清醒地认识到窗口服务的重要性是体现了银行的软实力与竞争力,要用心去服务,对客户的言行要多揣摩,真心连接与客户沟通的桥梁,真情做好服     

多级管理系统的扩展分析与评价

考虑一个理想化的多级并行系统的运行模型。设系统由若干个串列的部门组成,而各个部门又分为一些并行的服务能力相同的机构。利用排队论的理论和方法,分析这种稳定的随机运行系统的一些主要特征,并尝试对整个系统的运行效率和运行效益进行综合评价。     

Are private banks more efficient than public banks?

We study whether bank efficiency is related to bank ownership in Russia. We find that foreign banks are more efficient than domestic private banks and, surprisingly, that domestic private banks are not more efficient than domestic public banks. These results are not driven by the choice of production process, the bank's environment, management's risk preferences, the bank's activity mix or size, the econometric approach, or the introduction of deposit insurance. The policy conclusion is that the efficiency of the Russian banking system may benefit more from increased levels of competition and greater access of foreign banks than from bank privatization.     

WTO challenges and efficiency of Chinese banks

After joining the World Trade Organisation (WTO) in December 2001, China was given 5 years to completely open up its banking market for international competition. Chinese banks have been renowned for their mounting nonperforming loans and low efficiency. Despite gradual reforms, the banking system is still dominated by state ownership and encapsulated monopolistic control. How to raise efficiency is a key to the survival and success of domestic banks, especially the state-owned commercial banks. Two important factors may be responsible for raising efficiency: ownership reform and hard budget constraints. This article uses a panel data of 22 banks over the period 1995 to 2001, and employs a stochastic frontier production function to investigate the effects of ownership structure and hard budget constraint on efficiency. Empirical results suggest that nonstate banks were 8–18% more efficient than state banks, and that banks facing a harder budget tend to perform better than those heavily capitalized by the state or regional governments. The results shed important light on banking sector reform in China to face the tough challenges after WTO accession.     

中国银行业效率的实证分析

中国于 2 0 0 1年 1 2月加入WTO ,5年之后必须对外全面开放国内银行业市场。中国的银行一直以大量不良贷款和效率低下而著称。尽管在逐步改革 ,中国的银行体系仍由国有银行主导并形成垄断控制。怎样提高效率是国内银行尤其是国有商业银行生存和成功的关键。以下两个重要因素可能有助于提高中国的银行效率 :所有制改革和硬预算约束。本文使用了 2 2家银行 1 995— 2 0 0 1年期间的一组数据 ,利用随机前沿生产函数研究了所有制结构和硬预算约束对银行效率的影响。经验结果表明 ,非国有银行比国有银行效率高 1 1 %— 1 8% ;面临硬预算约束的银行的绩效比国家和地方政府投入大量资本的银行好。本文结论的重要意义是 :在加入WTO 3年后的今天 ,中国银行业的改革面临着更为严峻的挑战     

How efficient is the banking system of Asia’s next economic dragon? Evidence from rolling DEA windows

Vietnam is now widely regarded as a rising economic star and the next economic dragon of Asia. Its banking system has played a key role in this stellar economic performance. Since 1990, Vietnam’s banking system has undergone significant changes which saw its composition transformed from being state banks only to now being both state as well as private banks, and has performed generally well in terms of growth, profitability and stability. But is it efficient? We conduct a dynamic analysis of the level and trend of the cost and profit efficiency of the Vietnamese banking sector over the period 1995 to 2011 taking into account the Asian and Global Financial crises. We use the Data Envelopment Analysis (DEA) Windows Analysis approach and adjust for bank size in calculating the average efficiency score of the banking system. Our empirical findings show that the cost and profit efficiency of the Vietnamese banking system averaged around 0.90 and 0.75, respectively, with the state banks being more efficient than the private banks and with efficiency experiencing an upward trend over the analysis period. Moreover, we find that the Global Financial Crisis (GFC) and Asian Financial Crisis (AFC) did not significantly affect the efficiency of the whole Vietnamese banking system.     

Risk management and dynamic network performance: an illustration using a dual banking system

This study applies dynamic network data envelopment analysis to compare a dual banking system, namely conventional and Islamic banks, with emphasis on risk measures. Non-oriented, variable return-to-scale dynamic network slacks-based measure is used to model the banking performance for the period 2008–2012. Under the consideration of risk measures, the findings highlight that Islamic banks excel in managerial efficiency while conventional banks surpass in profitability efficiency. Furthermore, the regression results find that the number of directors on the risk management committee has a positive impact on banking performance. Meanwhile, the high number of independent directors improves the profitability efficiency but worsens the managerial efficiency.     

Bank reforms and efficiency in Vietnamese banks: evidence based on SFA and DEA

This study examines the cost efficiency of Vietnamese banks from 2000 to 2014 in the first stage, and the selection and dynamic effects of two governance reforms, foreign partial acquisition and listing on the stock exchange, on the efficiency in the second stage. Empirical results from the two-stage Stochastic Frontier Analysis (SFA) are highly consistent with those from the two-stage Data Envelopment Analysis (DEA) . Specifically, the first-stage efficiency estimation indicates that the cost efficiency shows a slightly upward trend over the period 2000–2014, with the cost efficiency score being 0.93 and state-owned banks outperforming joint-stock banks (JSBs). The mixed process seemingly unrelated regression estimator which controls the potential endogeneity of public listing and foreign acquisition in the second stage shows that selection effects occur in the Vietnamese banking system: banks selected by the strategic foreign investors for partial acquisition and banks selected for public listing are more cost-efficient than those not selected. The short-term and long-term dynamic effects of foreign partial acquisition are documented: the cost efficiency of the Vietnamese banks post-partial acquisition is lower than prior-partial acquisition, and it experiences a decreasing trend since partial acquisition. However, the short-term and long-term dynamic effects of public listing are not evidenced: the cost efficiency of the banks after public listing is not statistically different from that before public listing, and it also reveals an unclear trend since public listing.     

中国商业银行成本效率实证研究

基于随机前沿法原理,利用超越对数成本函数模型,本文评估了中国14家主要商业银行在1998—2003年间的成本效率情况,并按考虑贷款产出质量的2003年成本效率情况对各银行排序。实证研究结论为(1)中国商业银行总体的成本效率并不很差;(2)国有商业银行成本效率处于上升趋势,股份制商业银行则保持波动攀升趋势;(3)贷款产出质量对中国商业银行的成本效率有明显的负面影响,在考虑产出质量时,国有商业银行成本效率明显落后于股份制商业银行。     

From scratch to efficiency gains after a financial crisis? A tale of a restructured banking system

We study the efficiency of the Argentine banking system after the 2001–2002 crisis. The financial system had to be restructured from scratch and recovered jointly with the economy, but its productivity and average cost levels have been stagnant since 2007. The analysis includes efficiency frontier estimations for retail banks and a comparison of subsamples for different categories of banks for the period 2005–15. We try to determine whether public banks are more efficient than private ones, whether privatized are more efficient than always private, as well as national versus foreign entities. Our findings show a modest average efficiency of the system and quite similar efficiency rankings for the different groups of banks. On average, public tend to be slightly more cost efficient than private, and national are slightly more efficient than foreign.     

Do Listed Banks have Higher Operating Efficiency and Output Efficiency?

This paper investigates the efficiency and productivity of listed and non‐listed banks in China by using the meta‐frontier and GMMPI methods. We find that the improvement in productivity of listed and non‐listed banks is mainly due to changes in technological efficiency. The difference between them is that the improvement of productivity of listed banks presents a typical technology‐driven feature, and changes in scale efficiency negatively affect productivity. The productivity of non‐listed banks shows scale efficiency driving features. The meta‐frontier efficiency of listed banks is significantly higher than the others. After decomposing the technology gap ratio, we find that the current production technology of the listed banks is closer to the potential production technology frontiers, and there is space for the non‐listed banks to improve their efficiency. Besides, the gaps between the true extent and the potential technological frontiers of both listed banks and non‐listed banks have converged.     

Banking deregulation and allocative efficiency in Pakistan

This article examines the impact of deregulation policies on allocative efficiency of banks in Pakistan. It investigates whether deregulation has impacted the pattern of allocative efficiency of banks and explores which bank ownership segment has been more responsive. It uses data from 1991 to 2005 and explicitly models allocative inefficiency by using the translog shadow cost-share system. Empirical results show that overregulation and imperfect market structure hampers the ability of banks to make competitive decisions. We find evidence of allocative inefficiency leading to over-utilization of labour and deposits vis-à-vis operating cost. Empirical results for time-varying allocative efficiency show declining levels of allocative inefficiency for state-owned and private banks in post-reform period. Deregulation policies induce state-owned banks to decrease over-utilization of labour relative to deposits and operating cost while private banks succeed in using operating cost closer to optimal levels. Hence, policymakers have latitude to introduce more reforms without jeopardizing allocative efficiency.