立体库作业系统的Petri网建模与性能分析

介绍了广义随机Petri网(GSPN)的基本概念,并利用它建立了立体库作业系统的Petri网模型;阐述了基于GSPN的系统性能分析方法,得到立体库作业系统性能评价的新方法,并通过实例证明其可行性。     

论顾客满意的旅游服务质量控制

服务质量和顾客满意之间存在着正的相关性,较高的服务质量是产生顾客满意的必要条件.旅游服务的综合性、连续性、异地性、共享性和期望水平过高等特点,造成其质量控制的复杂性与难度.以顾客满意为基点,借助于服务营销理论,要从服务参与者、有形展示物、服务过程三个视角,有效提高旅游服务质量.     

价值基础的管理层业绩评价体系初探

本文结合价值管理趋势,对现代业绩评价体系的变革进行探讨。在分析了传统业绩评价体系和最近的平衡记分卡等方法之后,本文试图提出一套更具针对性和实用性的价值基础的业绩评价指标体系。该体系按照市盈率模型从每股收益和市盈率两个基本指标出发,依据价值创造链的分析,寻找出相应的辅助指标,从而构建了一个以股东价值为基础和核心的、财务指标与非财务指标相结合的评价指标体系。     

研究开发费用资本化与费用化的比较分析

随着知识经济的到来,企业研究与开发费用作为经常性支出日益增多,且数额越来越大。本文通过对国内外研究开发活动定义、研究与开发费用的范围、组成内容、处理方法以及对费用化和资本化的比较,结合我国《企业会计准则第6号——无形资产》及应用指南的有关规定,对我国新准则中将开发阶段支出有条件的资本化处理进行了分析。     

Effects of permitted effluent limits on environmental compliance levels

This paper empirically analyzes the effects of permitted effluent limits on compliance levels - discharges relative to limits - at individual polluting facilities. In particular, it constructs and employs effluent limit-related regressors that measure the differences between the actual effluent limit level imposed on a particular facility for a given month and three benchmarks: federally-mandated standard for effluent limit level, a particular facility's average effluent limit level over a specified period (e.g., entire sample period), and preceding monthly limit at a particular facility (i.e., transition to new limit). By examining the effects of effluent limit levels as measured relative to these three benchmarks, this paper explores whether limit stringency affects compliance level choices (e.g., more stringent limits undermine compliance), whether adjustments to treatment are non-smooth (“lumpy”), and whether quick adjustments are difficult. Evidence of these possibilities would have meaningful implications for environmental protection policies.     

Research policy and endogenous growth

This paper studies the effects of different types of research policy on economic growth. We find that while subsidies to private research, public funding of private projects, and basic research performed at public institutions have unambiguously positive effects on growth, performing applied research at public institutions could have negative growth effects. This is due to the large crowding out of private research caused by public R&D when it competes with private firms in the patent race.JEL Classification: O31, O38, O40I thank the helpful comments of Jordi Caballé, David Pérez-Castrillo and two anonymous referees. I also aknowledge the financial support of Fundaci ón Séneca project PB/3/FS/02.     

高管团队断裂带对创业企业成长绩效影响的实证研究——创新强度的调节效应

近年来，高管团队断裂带对企业绩效的影响引起了国内外学者的广泛关注，然而高管团队断裂带究竟是促进还是抑制了企业绩效尚无一致结论。基于交叉分类视角，以我国2011—2018年创业板民营上市公司为研究样本，应用广义最小二乘法，实证分析了高管团队断裂带对企业成长绩效的影响，以及企业创新强度对二者关系的调节作用。实证研究结果显示：高管团队任务相关断裂带和社会分类断裂带与民营创业企业成长绩效存在显著的倒U型关系，同时，企业创新强度对高管团队断裂带与民营创业企业成长绩效关系具有显著调节效应。具体而言，企业创新强度越高，高管团队任务相关断裂带和社会分类断裂带与民营创业企业成长绩效间的倒U型关系越显著。     

中央企业持股比例对其控股上市公司经营业绩的影响

本文讨论中央企业持股比例对其控股上市公司经营业绩的影响.文章使用2006年末截面数据,研究结果发现,在控制行业因素、公司个体特征因素的条件下,中央企业作为第一大股东的持股比例越高,该控股上市公司经营业绩越好--二者呈正相关关系.     

惯例多元性：研发联盟何以提升治理绩效

网络组织内部结构优化与运行效率提升离不开惯例这一重要的知识资源，作为描述联盟组织行为方式的一般术语，联盟惯例表现为稳定的做事方式、标准化的作业程序和统一的行为准则等多种形式，并且在协调主体之间合作关系、增强组织内部稳定程度以及提升经验信息交流效率等方面发挥着重要作用。基于上海、南京和杭州地区261家企业调研数据，从惯例多元性视角出发，将联盟惯例解构为行动逻辑、内隐规范和交互共识，研究不同治理机制下联盟企业提升合作绩效的问题，同时揭示多元联盟惯例在研发联盟治理过程中的作用机理。研究结果表明：契约治理机制与研发联盟绩效之间存在倒U型关系，关系治理机制与研发联盟绩效之间存在正向关系；联盟惯例的3个维度对其调节效应不同，其中，行动逻辑和内隐规范对契约治理机制与联盟绩效之间的关系均有显著正向调节效应，而交互共识对契约治理机制与联盟绩效之间的关系有显著负向调节效应，同时，交互共识对关系治理机制与联盟绩效之间的关系有显著正向调节效应。     

Further research into a convention for measuring the state-of-the-art of products or processes

In a 1980 study, an attempt was made to provide some degree of quantitative precision to the term “state-of-the-art” by developing an SOA measure for computers and antibiotics. This study expands on the convention developed in the earlier work and applies the approach to five technologies: aircraft turbine engines, high-temperature materials as used in blades and vanes, manmade fibers, farm tractors, and coal gasification. Satisfactory state-of-the-art measures were developed for aircraft turbine engines and high-temperature materials, and the maturity of farm tractor technology was confirmed. The convention also revealed that manmade fiber technology has been in a refining mode since the introduction of nylon. Coal gasification has not gained enough commercial experience to merit a state-of-the-art measure.