北京城乡结合部的发展演变及启示

在研究北京城乡结合部于改革开放后发展变化历程的基础上,对城乡结合部在北京发展中的四个作用作了详细的分析,对北京城乡结合部发展中存在的六个方面的问题也进行了分析并提出了相应的对策建议.     

社会资本发展对企业财务的影响分析

社会资本理论于80年代晚期才引起理论界的广泛关注,此后又引入企业社会资本概念。社会资本的积累直接关系到企业的生存与发展,本文将社会资本理论应用于财务领域,从收益和风险两方面探讨了企业投资于社会资本应考虑的问题,为企业有目的地构建社会资本做初步分析。     

Model selection in random effects models for directed graphs using approximated Bayes factors

With the development of an MCMC algorithm, Bayesian model selection for the p ₂ model for directed graphs has become possible. This paper presents an empirical exploration in using approximate Bayes factors for model selection. For a social network of Dutch secondary school pupils from different ethnic backgrounds it is investigated whether pupils report that they receive more emotional support from within their own ethnic group. Approximated Bayes factors seem to work, but considerable margins of error have to be reckoned with.     

Action Research is Similar to Design Science

In management information systems (MIS) action research is long considered as promising but low-level research approach. It has an utmost relevance because action researchers are working with practitioners to solve the important practical problem. Design science outlined some years ago is just winning a wider audience. Action research was traditionally classified into qualitative research methods. But it seems to be the “wrong” home of action research. We shall show that after comparison of the seven aspects: concrete results of the study, knowledge produced, activities, the intent and the nature of a study, the division of labor in a study and generation, use and test of knowledge, the concordance between the characteristics of action research on the one hand and of design science on the other hand is very good. Hence, action research and design science should next be considered as similar research approaches, and this is a turning point in the history of both action research and design science.     

农民工的社会网络变迁

采用系统模式研究了进城农民工的社会网络重构过程,指出随着谋生方式由农业生产向非农产业的转移,进城农民工正在逐步建立起以业缘关系为基础的新的社会纽带,并使之成为其社会网络的重要组成部分.这些由进城农民工一手构建的社会关系网络正在成为他们在城市生活中赖以生存和发展的重要资本.     

高科技创业企业社会网络的生成机理与特点分析

本文分析了社会网络的研究现状,指出从经济学与管理学的角度探讨社会网络的必要性;分析了高科技创业企业社会网络的生成机理,界定了高科技创业企业社会网络的内涵,并探讨了高科技创业企业社会网络节约交易成本、分散分摊风险、发挥网络特性等特点。     

三峡外迁移民的社会适应性及其影响因素研究——对江苏227户移民的调查

通过实证调查的资料对三峡外迁移民的社会适应状况作了描述,对影响其社会适应性的因素进行了分析。就总的社会适应性而言,一半以上的移民已基本适应了迁入地的生活。与三峡外迁移民的社会适应状况密切相关的因素主要有搬迁前后经济收入的差异、当地居民的态度、语言适应性、政府关心状况、迁入地治安状况、住房条件的差异。     

论企业的双重属性

本文从企业人、资产、产品、价值、环境等与企业行为相关的五方面较为全面地分析了企业双重属性的内涵,指出企业必须认识到自己所天然具有的社会及经济属性,并以此作为指导企业发展设计和规范企业行为的意识准备。     

Declining Discount Rates: The Long and the Short of it

The last few years have witnessed important advances in our understanding of time preference and social discounting. In particular, several rationales for the use of time-varying social discount rates have emerged. These rationales range from the ad hoc to the formal, with some founded solely in economic theory while others reflect principles of intergenerational equity. While these advances are to be applauded, the practitioner is left with a confusing array of rationales and the sense that almost any discount rate can be justified. This paper draws together these different strands and provides a critical review of past and present contributions to this literature. In addition to this we highlight some of the problems with employing DDRs in the decision-making process, the most pressing of which may be time inconsistency. We clarify their practical implications, and potential pitfalls, of the more credible rationales and argue that some approaches popular in environmental economics literature are ill-conceived. Finally, we illustrate the impact of different approaches by examining global warming and nuclear power investment. This includes an application and extension of Newell and Pizer [‘Discounting the benefits of climate change mitigation : how much do uncertain rates increase valuations?’ Journal of Environmental Economics and Management 46 (2003) 52] to UK interest rate data.     

城市国民经济和社会发展规划战略环境评价研究——以武汉市为例

城市国民经济和社会发展规划编制是否科学．会直接影响到城市其他规划的科学性，对城市未来的发展及生态环境状况影响重大。本文论述了对城市国民经济和社会发展规划开展战略环境评价的必要性和重要性．并结合（《武汉市国民经济和社会发展第十一个五年总体规划纲要》探讨了我国城市国民经济和社会发展规划战略环境评价的技术思路和技术方法。