全球价值链中产业集群的技术学习

介绍了全球价值链理论的主要内容,分析了产业集群在全球价值中技术学习重要意义,重点论述了技术学习的知识来源、学习过程和学习机制问题,指出有效创新源不足是全球价值链中产业集群的技术学习面临的难题,也是今后应该着力解决的课题。     

企业集群创新系统的涌现机理研究

企业集群创新是一种系统涌现,在企业集群创新系统动态的演化过程中,表现出明显的结构涌现和功能涌现现象。产生涌现现象的根本原因在于系统的受限生成过程。本文研究了企业集群创新涌现的机理,运用受限生成过程模型刻画了企业集群创新系统的涌现性,具体解释了适应性主体在一定的规则下相互作用、共同演化的过程,分析了由于"趋同效应"机制的作用而不断形成层次涌现,最终形成巨大的复杂的企业集群创新系统的涌现现象。     

一种在虚拟机中快速安装LFS的方法

LFS是从源代码开始编译的简洁的Linux系统。文章描述一种将物理机上的LFS快速安装及部署到虚拟机基础操作平台的方法。该方法快速灵活,特别适用于虚拟化平台中数据库集群以及均衡负载等对操作系统的一致性要求较高的系统。     

山东省城镇居民消费水平的统计分析

本文运用主成分法和聚类分析法,对山东省16个市地的城镇居民消费水平,进行了比较分析。解决了以往在分析居民消费问题时,所遇到的指标多,且指标体系中存在此消彼长的现象,同时验证了分类结果。在此基础上进一步探讨了个人可支配收入与人均总的消费支出之间的关系。并对提高城镇居民消费水平提出了建议。     

集群企业间知识溢出、研发竞争与集群主导设计形成的关系

考察了产业集群企业间的研发竞争和知识溢出对集群企业采纳潜在主导设计的影响。通过数理分析和实证检验,得到如下结论:集群企业间的研发竞争有利于主导设计的形成;集群企业间的知识溢出对主导设计的形成也有正向影响;企业间的研发竞争正向调节知识溢出与主导设计形成的关系。     

从陕西猕猴桃产业的发展看如何构建陕西绿色农业产业集群

作为一种独特的产业集群模式,绿色农业产业集群对陕西省的经济发展起着重要的作用。从陕西猕猴桃的现状出发,以陕西猕猴桃产业发展所面临的问题为切入点,探讨了陕西省构建绿色农业产业集群的一些思路,为陕西绿色农业产业集群的发展提供了启示。     

基于模糊综合评判的物流运输企业客户群体价值评估

论述了物流运输企业实施客户群体价值评估的意义,给出了基于模糊综合评判的对现代物流运输企业客户进行价值评价的基本思路。     

Social Position and Behaviour: A Formalization

Modern society has witnessed anever-increasing development in the social sciences;partly due to changes in mentality, and partly due tothe growing requirements of the economic and political world – requirements which frequently takeon the guise of necessity, as for instance in thecases of market research and electoral opinion polls.Such development has produced an increasing paralleldemand for mathematical accuracy and exactitude inthese fields.The intention here is to rationalize the basic logicand methodology of the sociological procedure; anintention, it is hoped, which could be influential inimproving practical sociological work by rendering itmore comprehensible. This requires the employment offairly sophisticated mathematical and statisticalnotions.Section 1 outlines the definitions considered essential for the rationalization of the basiclogic framework previously described.Section 2 discusses the general concept of statisticalvariance. Section 3 introduces the notion of ``heterogeneity'and offers several propositions linked to this concept.Section 5 revolves around the notion of ``inaccuracy'.Section 6 presents a theorem relating to theimmersion of metric spaces in Banach spaces, andshows how the theorem can be used to constructtheoretically satisfactory immersion algorithms.Section 7 together with the material, which ispreviously introduced in Section 4, outlines thecluster analysis and the principal components methodologies.     

A Probabilistic Clustering Model for Variables of Mixed Type

This paper develops a probabilistic clustering model for mixeddata. The model allows analysis of variables of mixed type: thevariables may be nominal, ordinal and/or quantitative. The modelcontains the well-known models of latent class analysis as submodels.As in latent class analysis, local independence of the variables isassumed. The parameters of the model are estimated by the EMalgorithm. Test statistics and goodness-of-fit measures are proposedfor model selection. Two artificial data sets show the usefulness ofthese tests. An empirical example completes the presentation.     

中小企业集群与现代物流浅析

中小企业集群成长是提高中小企业竞争力并获得集聚效益的一条新途径现代物流对经济发展的贡献也已被许多国家的实践所证实．本文从分析中小企业集群概念入手，阐述了中小企业集群成长的优势，探讨了中小企业集群与现代物流的关系，进而提出中国现代物流的发展对策．