信息熵与灰关联度评价方法在电信重组中的应用

电信业存在的问题需要通过重组来解决.电信业的特点,适合采用信息熵和灰关联分析方法来评价重组方案.以构建有效竞争格局为目的,介绍了信息熵与灰关联度方法的建模步骤,并以例子说明了该方法的具体应用.     

A theory of trust based systems of intermediation

Recent studies have analysed the economic benefits of belongingto high-trust networks and the biological foundations of individualtrust, but much scepticism remains regarding the precise roleof trust in economic transactions, as well as gaps between microand macro concepts of trust. This paper links individual andinstitutional trust by modelling the costs associated with accessingmarket, law and trust-based intermediation systems, and identifiesthe conditions under which one of the three systems may be moreadvantageous for rational actors, and thus more likely to emerge.The discussion concentrates on examples drawn from developmentpolicy to illustrate how the three systems operate together,and how the failing of the trust system affects the legal andmarket systems.     

基于零售商促销的渠道协调及数量折扣契约设计

定量研究当零售商具有促销策略时的渠道协调。在此种情形下，渠道成员独立决策时线形契约无法促成渠道协调，通过博弈模型分析，给出一种协调数量折扣价格契约，并对渠道协调后的利润分配作了初步探讨。结果表明，制造商促使该类渠道达成协调的数量折扣有无穷多个，在一定条件下渠道成员双方利润均会增加，并给出了算例分析。同时根据数量折扣形式，对传统的“入场费”问题进行了再讨论，得出了“入场费”与渠道协调之间的关系，进而揭示出“入场费”在实践中深层含义。     

The role of externalities and information aggregation in market collapse

We examine the role that belief, network externality, and information aggregation play in inefficient market collapses. After receiving consecutive negative shocks, some ex-ante identical Bayesian agents will be discouraged about the unknown state of the market they invest; therefore, they will stop investing. This decision will have two effects: first, it will cause agents to aggregate information through social/observational learning; second, it will decrease the network externality effect. We show that there might be an inefficient market collapse if the externality effect diminishes too much, and the cost of re-entry to the market is too high. We also analyze the effects of strategic delay and experimentation on the exit decision of the agents. I especially thank Thomas D. Jeitschko, Matthew Mitchell, B. Ravikumar Ted Temzelides. I also thank anonymous referees, an associate editor, John Conlon, Larry Samuelson, Troy Tassier, Stephen Williamson, and seminar participants of the University of Saskatchewan, Georgia Tech, Concordia University, University of Manitoba, Iowa Alumni Workshop, Midwest Economic Theory Conferences held at Indiana Bloomington, and Notre Dame, and 1st International Conference on Business, Management and Economics organized by Yasar University.     

论企业技术联盟的类型与一般发展特征

技术联盟作为提高技术创新能力的有效策略，目前正在被国外许多企业广泛采用。我国目前也开始出现企业技术联盟的现象。本文对企业技术联盟的类型及发展特征进行了分析．并指出了我国企业在进行技术联盟活动中存在的问题及解决问题的策略。     

企业内部市场化程度测度指标设计

企业内部市场化实践已越来越受到人们的重视,但内部市场化到底达到了何种程度却少有人关注和研究.本文尝试性地提出了13项指标,从内部市场中经济主体的地位平等度、经营单位权利的市场化和组织制度结构的市场性质三个维度来测度企业内部市场化程度.     

INTERORGANIZATIONAL TIME‐BASED POSTPONEMENT IN THE SUPPLY CHAIN

This paper presents the results of empirical research on the use of time‐based postponement in a supply chain context using data collected from two manufacturers, a distributor, and a retailer. The analysis shows that implementing postponement at the firm level can result in the supply chain carrying more inventory. In order to achieve its full potential, postponement needs to be implemented across organizations in the supply chain.     

Accommodating a Foreign Object: Federalism,coordination and performance management in the reform of German employment administration

Abstract

This paper uses the case of the reform of the German employment administration to explore the usage of performance management approaches within multi-level governance settings. It traces the adoption and accommodation of the performance management approach to govern the joint service centres (called ‘Jobcenter’) at the local level within the multi-level administrative coordination regime in Germany’s federal system. A contribution is made to nascent debates about the potential of managerial tools in systems of negotiated decision-making. The paper shows how performance management is adapted to the institutional logic of multi-level administrative coordination and serves as a facilitator of cross-level coordination.     

石油贸易、石油安全与我国的对策

石油对我国经济和国家安全至关重要。自从1993年我国成为石油净进口国以来,我国石油对外依存度逐年上升。自2003年后,国际石油价格爆涨,我国石油安全比以往任何时候都更危险。同时,我国石油贸易还存在越贵越买的问题。本文分析了我国石油安全形势,认为我国石油安全已经处于危险状态,在此基础上,进一步提出了提高我国石油安全和改善石油贸易的建议。     

东道国的融资环境和政府行为对于国际直接投资的影响

本文提出一个假说———在其他条件相同的情况下,一国吸引FDI的多少与本国企业所受到的投资约束是相关的,这种约束越大,吸收的FDI就越多。本文通过FDI行业集中度的国际比较,揭示出中国FDI行业集中度极其低下这一特殊现象,指出中国之所以能吸收如此大量的FDI,其中一个原因就是,我国企业的投资行为受到了极其严厉的金融约束和政府行为的限制。在这样的背景之下,一部分不具有任何比较优势的外资进入了中国,占领了我国市场。这对于中国经济的进一步发展是极其有害的。