煤炭企业提高物资采购质量探析

本文从煤炭行业物资采购工作的特点、管理存在的问题入手,就如何引入质量管理理论实现科学理性采购,强调企业在供应链管理环境下应该通过全过程的质量控制手段,与伙伴供应商建立一种新型的合作伙伴关系,以达到提升供应链整体竞争能力的目的.研究如何根据企业的实际需要,有目的地对伙伴供应商进行识别、评价与选择,为伙伴供应商的选择提供科学的方法和依据.     

Price Limit Performance: Evidence from the Tokyo Stock Exchange

Price limit advocates claim that price limits decrease stock price volatility, counter overreaction, and do not interfere with trading activity. Conversely, price limit critics claim that price limits cause higher volatility levels on subsequent days (volatility spillover hypothesis), prevent prices from efficiently reaching their equilibrium level (delayed price discovery hypothesis), and interfere with trading due to limitations imposed by price limits (trading interference hypothesis). Empirical research does not provide conclusive support for either positions. We examine the Tokyo Stock Exchange price limit system to test these hypotheses. Our evidence supports all three hypotheses suggesting that price limits may be ineffective.     

市场导向、组织学习创新及组织绩效:基于珠江三角洲企业的实证研究

The purpose of this paper is to examine the relationships among market orientation, learning orientation, organizational innovation and organizational performance through a structural equation modeling approach. This study uses a sample of 143 companies in the Pearl River Delta region of China. Results show that (1) market orientation has no positive direct impact on organizational performance; (2) market orientation has a direct impact on learning orientation; (3) learning orientation has a direct impact on administrative and technical innovation; (4) market orientation has a direct impact on organizational innovation by learning orientation; (5) administrative innovation has a positive direct impact on organizational performance while technical innovation does not impact on organizational performance directly; (6) technical innovation has a positive impact on administrative innovation; (7) learning orientation has an indirect impact on organizational performance through influencing organizational innovation; (8) market orientation has impact on learning orientation, which has an impact on organizational innovation, which in turn has an impact on organizational performance. Managerial implications are discussed, along with suggestions for further research. Translated from Guanli Shijie 管理世界 (Management World), 2006, (2): 80–94, 143     

强化基建财务管理创造良好生产效益

一、强化基建阶段财务管理是确保项目投产后实现良好效益的前提基建是项目生产的前奏。随着国家经济体制改革的深入 ,就基本建设项目而言 ,要求企业财务管理由生产、基建并存逐步转化为将基本建设财务工作作为企业经营管理的重要环节 ,全面纳入企业财务管理范围 ,从而在企业内部建立起从项目筹建到生产经营、从资金筹集使用到贷款偿还、从投入到产出全过程、完整的财务管理和会计核算体系。在传统基建与生产相脱节的管理模式下 ,特别就大中型煤炭企业而言 ,由于新建或改扩建建设周期较长 ,工程造价的高低、质量的好坏往往会因管理水平的高低…     

Assessing the risks of service failures based on ripple effects: A Bayesian network approach

This study responds to the need for assessing risks of service failures by focusing on ripple effects. We propose a Bayesian network approach to assessing risks of service failures based on the depdendence relationships among individual service failures. To avoid conceptual misunderstanding and imprecise use in practice, the suggested approach is designed to be executed in three consecutive stages: modeling a Bayesian network; assessing the risks in terms of probabilities of service failures (PSFs) and impacts of service failures (ISFs); and developing a service failure assessment map. A case study of the outpatient consultation service is presented to show the feasibility of our method.     

A stochastic patent citation analysis approach to assessing future technological impacts

The anticipation and forecast of technological changes are of vital importance, as technological advances become increasingly fast and complex. What is at the core is identification of the current technologies that will drive technological changes over the coming few years. In this respect, numerous approaches have been devised to assess future technological impacts based on patent citation information, but do not provide a fair reflection of dynamic and idiosyncratic aspects of technological impacts as they are deterministic methods based on simple citation counts. We propose a stochastic patent citation analysis that can assess future technological impacts in a time period of interest by employing the future citation count as a proxy. At the heart of the proposed approach is a Pareto/NBD (Negative Binomial Distribution) model for taking into account the dynamic and idiosyncratic aspects of technological impacts. A patent citation matrix is first constructed for each time unit with citation patterns of the past. The future technological impacts are then derived by Pareto/NBD sub-model and gamma–gamma sub-model. A case study of the display technology patents is presented to illustrate the proposed approach. We believe our method can be employed in various research fields, from narrow patent valuation, to broad technological analysis and planning.     

STRATEGY‐PROOF ALLOCATION OF INDIVISIBLE GOODS AMONG COUPLES

We consider the problem of allocating indivisible goods among couples. Agents in a couple share the indivisible good assigned to them. The main result is that an allocation rule is strategy‐proof, neutral and non‐bossy if and only if it is serially dictatorial. An allocation rule is serially dictatorial if there is a priority order of couples and a function that identifies who chooses in each couple, such that for all preference profiles, a good assigned to couple i is the best element according to the preference of the identified agent in couple i among the remaining goods when the couples with higher priorities have made their choice.     

经济欠发达地区城市化理论与实践探索——以江西吉安市为例

本文以江西省吉安市为例 ,运用城市细分理论和城市结构理论 ,对经济欠发达地区城市化过程中的城市定位、发展目标选择、空间结构模式以及城市主要衡量指标进行了系统的分析 ,从理论和实践的角度为经济欠发达地区实现城市化提出了一系列具体政策和建议。     

基于三角模糊数的服务创新风险分析

在企业或社会中发挥着越来越重要的作用,学者越来越关注对服务的研究,力图通过技术等手段对原有服务进行改造或创新,从而实现效益,但是关于服务创新中风险的研究甚少。因此本文首先利用环境分析法,分析出在服务创新过程中的风险因素,使用基于三角模糊数的模糊层次分析法,对这些风险因素进行评价。最后用一个实例证明这种风险方法,可以更好的进行风险管理,提高服务创新的成功率。     

一种改进的软件项目成本估算方法

软件项目成本估算是软件项目管理的关键步骤,也是软件项目计划的难点。本文着重分析了参数模型法中的结构型软件成本估算模型的不足,提出了一种基于COCOMO的改进模型,提高了估算的精确度,给实际工作带来便利。