中国内地和香港能否构成最优货币区研究--来自实证结果的分析

亚洲金融危机后 ,东亚和东南亚国家开始探讨亚洲货币合作问题 ,“亚元”也被提出并受到越来越多的关注。对于统一主权下的中国内地和香港来说 ,在这方面能否先行一步 ?尤其是随着两地经济一体化的发展 ,内地和香港会不会像欧盟那样在经济一体化条件成熟后采用单一货币呢 ?文章在最优货币区理论的基础上对内地和香港经济冲击的对称性进行研究 ,探讨人民币和港币是否有条件实现货币一体化。研究表明目前内地和香港经济冲击的对称性不够高 ,还没有满足组成最优货币区的条件 ,但是从内地和香港未来的发展方向来看 ,经济冲击的对称性将随着经济一体化程度的提高而提高 ,货币一体化的条件也将逐渐成熟。     

Chinese version of the OSI: A validation study

This article examines the construct validity of the Occupational Stress Indicator (OSI) in its Chinese version as well as its criterion-oriented validity against self-reported data on absenteeism and accidents, using a final sample of 1054 workers in the Chinese manufacturing and power industries. The divergent and convergent validities of five of the OSI scales—Job satisfaction, Physical ill-health, Mental ill-health, Type A behaviour and Control—were examined by a multimethod-multitrait matrix technique. Results indicated that the Chinese OSI had fairly good validity in relation to other well-established measures as well as relevant organizational behaviours.     

用线性互补及二次规划理论分析市场均衡问题

本文讨论了一类完全竞争条件下的市场均衡问题,供给方的生产特征用线性规划模型进行刻划,市场需求函数源于一般经济意义下的模型,它是一系列相互独立的价格变量的函数．我们将此问题归结为线性互补问题,并依此讨论了均衡点的存在性．本文还讨论了一种用二次规划进行刻划的经济问题,并指出此二次规划的K－K－T条件等价于所讨论的线性互补问题．     

Analytical network process for software selection in product development: A case study

Application of software for manufacturing processes is one of the resolutions many enterprises have resorted to in the 21st century. This has been a result of increased complexity of products, globalization, rapid changes in technology and so on. The idea was that application of software especially for product development would increase the competitive advantage of industry nevertheless the irony has been that most of the investment in software has not achieved the expected results. We carry out a case study to introduce a methodology, the analytical network process as a multiattribute strategic decision making approach to help in the selection of appropriate software to suit the product development process of a particular product.     

Minimum power assignment in wireless ad hoc networks with spanner property

Power assignment for wireless ad hoc networks is to assign a power for each wireless node such that the induced communication graph has some required properties. Recently research efforts have focused on finding the minimum power assignment to guarantee the connectivity or fault-tolerance of the network. In this paper, we study a new problem of finding the power assignment such that the induced communication graph is a spanner for the original communication graph when all nodes have the maximum power. Here, a spanner means that the length of the shortest path in the induced communication graph is at most a constant times of the length of the shortest path in the original communication graph. Polynomial time algorithm is given to minimize the maximum assigned power with spanner property. The algorithm also works for any other property that can be tested in polynomial time and is monotone. We then give a polynomial time approximation method to minimize the total transmission radius of all nodes. Finally, we propose two heuristics and conduct extensive simulations to study their performance when we aim to minimize the total assigned power of all nodes. The author is partially supported by NSF CCR-0311174.     

The impact of supply chain management practices on competitive advantage and organizational performance

Effective supply chain management (SCM) has become a potentially valuable way of securing competitive advantage and improving organizational performance since competition is no longer between organizations, but among supply chains. This research conceptualizes and develops five dimensions of SCM practice (strategic supplier partnership, customer relationship, level of information sharing, quality of information sharing, and postponement) and tests the relationships between SCM practices, competitive advantage, and organizational performance. Data for the study were collected from 196 organizations and the relationships proposed in the framework were tested using structural equation modeling. The results indicate that higher levels of SCM practice can lead to enhanced competitive advantage and improved organizational performance. Also, competitive advantage can have a direct, positive impact on organizational performance.     

突发事件应急法制体系的国际比较与框架设计

应对突发灾难性事件越来越成为政府必须面对的常态管理问题,而解决这一问题除了有赖于职能部门的高效运作之外,还应该有完善的法制基础,从体制层面解决应急管理相关问题.文章通过对突发事件及其应急法制,国内外应急法制立法现状的比较与分析,针对当前应急法制建设中存在的需求和不足,提出了完善我国突发事件应急法制体系的框架设计.     

公司并购绩效与公司边界:交易费用的视角

公司并购重组是重新确定公司边界的一种有效机制。本文充分整合产权理论、交易费用经济学、影响成本理论以及公司并购协同效应理论,推导出影响公司边界的若干因素,确定出影响公司并购绩效的主要潜在因素,再在此基础上建立一个分析公司并购绩效与公司边界的综合性理论框架。结果发现,资产专用性、影响成本与公司并购协同效应都将对公司边界的调整和公司并购绩效产生决定性的影响,而且这个影响的大小又取决于治理结构、融资工具以及组织结构等诸多因素。     

高管持股与企业价值——基于利益趋同效应与壕沟防守效应的经验研究

本文以深交所78家民营上市公司为样本,从利益趋同效应和壕沟防守效应两方面研究了高管持股与企业价值的关系。与目前大多数相关研究不同,本文在计量高管持股比例时包括了高管人员通过间接方式持有的公司股权。本研究发现,高管持股比例不同引起的利益趋同效应和壕沟防守效应导致高管持股与企业价值之间呈显著的非线性关系。当高管持股比例在8%—25%之间,高管持股的壕沟防守效应占主导,而小于8%或大于25%时,高管持股的利益趋同效应占主导。研究结论对以激励为主要目的或以股权结构优化为主要目的的高管持股方案提供了经验证据。     

回报计划感知价值及其与计划忠诚和品牌忠诚的关系研究

目前,客户回报计划已成为一种重要的关系营销手段,相关问题也开始引起学术界的关注。本文研究了回报计划的不同形式是如何影响客户对计划的感知价值的,同时回报计划的感知价值又是如何影响计划忠诚和品牌忠诚的,并且在研究的过程中考虑了产品或服务对客户涉入度的调节作用。结果显示,仅回报类型对计划感知价值的影响受到涉入度的调节,强涉入度下直接回报优于间接回报;而回报时间和回报额度对计划感知价值的影响不受涉入度的调节,延迟回报和差额回报优于立即回报和等额回报。同时,在强涉入度情况下,回报计划的感知价值通过直接和间接两务途径影响品牌忠诚;而在低涉入度争件下,回报计划感知价值对品牌忠诚没有直接影响,而是通过计划忠诚间接影响品牌忠诚。