A characterisation of logistics networks for product recovery

Recovery of used products is receiving much attention recently due to growing environmental concern. Efficient implementation requires appropriate logistics structures to be set up for the arising goods flow from users to producers. We investigate the design of such logistics networks. As a basis for our analysis we review recent case studies on logistics network design for product recovery in different industries. We identify general characteristics of product recovery networks and compare them with traditional logistics structures. Moreover, we derive a classification scheme for different types of recovery networks.     

纯粹经济损失探析

纯粹经济损失是因对人身权利和有形财产权利益以外的利益的侵害所直接导致的受害人一般经济利益的损失。纯粹经济损失的可赔偿性一直是颇具争议的问题,各国的普遍做法是以“排除性规则”为原则,但同时创设一些例外。合同法和侵权法是各国对纯粹经济损失进行救济的基本法律途径,另外将案件类型化也是一个重要的手段。我国应该加强对纯粹经济损失的研究和立法。     

Embeddedness of Organizational Capabilities*

Managers must regularly make decisions on how to access and deploy their limited resources in order to build organizational capabilities for a sustainable competitive advantage. However, failure to recognize that organizational capabilities involve complex and intricately woven underlying processes may lead to an incomplete understanding of how capabilities affect competitive advantage. As a means of understanding this underlying complexity, we discuss how managerial decisions on resource acquisition and deployment influence capability embeddedness and argue that capability embeddedness has an incremental effect on firm performance beyond the effects from organizational resources and capabilities. To investigate these issues, we present a hierarchical composed error structure framework that relies on cross‐sectional data (and allows for generalizations to panel data). We demonstrate the framework in the context of retailing, where we show that the embeddedness of organizational capabilities influences retailer performance above and beyond the tangible and intangible resources and capabilities that a retailer possesses. Our results illustrate that understanding how resources and capabilities influence performance at different hierarchical levels within a firm can aid managers to make better decisions on how they can embed certain capabilities within the structural and social relationships within the firm. Moreover, understanding whether the underlying objectives of the capabilities that are being built and cultivated have convergent or divergent goals is critical, as it can influence the extent to which the embedded capabilities enhance firm performance.     

我国知识产权保护的经济学解析与对策

随着技术因素在经济增长中作用的凸现,知识产权保护问题正逐渐成为各国经济和法律界关注的焦点。文章以经济分析法学为指导,将经济学的模型引入知识产权保护问题的研究之中,开创性的用经济激励模型和委托—代理模型等微观经济学的理论来探析我国在当前的形势下应该选择怎样的知识产权保护制度安排及对策。     

对我国企业集团筹资模式的思考

企业集团的筹资模式直接影响到企业集团筹资的效果.基于对企业集团筹资的特点、影响企业集团筹资模式选择的因素的分析,在现实条件下我国企业集团筹资可选择以外部的间接融资为主、内部融资和直接融资为辅的模式.     

MARKET PENETRATION AND LOCATIONAL CONFLICT IN FRANCHISE SYSTEMS*

This paper addresses the questions of market penetration and locational conflict in a franchise system of distribution. The models developed provide a means to evaluate alternative scenarios and the effects of various franchise policies. It is shown that the market penetration and location goals of the members of a franchise system coincide only under a very limited set of circumstances.     

网络社交历史与中国早期网民个体生活空间变迁

中国最早的网络移民自始至终伴随了中国互联网的发展,他们的网络使用行为形成了一段不长但至少可以追溯的历史。早期的网络社交将个体从现实物理空间局限中解放出来,具有高蹈于日常生活之上的虚拟色彩;随着网络空间中现实好友的增多和移动位置社交的兴起,网络空间的虚拟色彩渐渐褪去;如今,日常生活中的人际交往不再是在某一单一空间中进行,人们不断地在物理空间与网络空间切换,亦或同时在场。     

The coefficient of determination and its adjusted version in linear regression models

This article presents a comparative study of the efficiency properties of the coefficient of determination and its adjusted version in linear regression models when disturbances are not necessarily normal.     

Some subjective bayesian considerations in the selection of models

Some considerations relating to the post-data selection of models are discussed. These include some difficulties with orthodox theory, implementation of the likelihood principle, and Bayesian tests of hypotheses.     

上海市煤场布局优化模型的研究及应用

本文提出的煤场布局优化模型,把选址数学模型与多目标决策方法结合起来,充分考虑了大型能源设施在布局问题上所涉及到的各种社会因素的复杂性,既可用于确定现有城市老煤场的改造方案,也适用于新建煤场的选址决策,具有相当的实用价值。