On the Fisher information matrix of a vector ARMA process

We derive a neat and compact representation of the asymptotic Fisher information matrix of a vector ARMA process. Its inverse can be used immediately as the asymptotic covariance matrix of the Gaussian maximum likelihood estimator. We also provide the robust sandwich covariance estimator when the process is non-Gaussian.     

社群用户转移意愿与能力对企业知识转移绩效的影响

采用阶层回归方法对165份用户社群数据进行分析发现,社群用户转移意愿与能力对企业知识转移绩效有显著正向影响,用-企沟通在社群用户转移能力与企业知识转移绩效之间起中介作用,用-企信任正向调节用-企沟通与企业知识转移绩效之间的关系。     

技术进步、产业结构变动与污染减排——基于环境投入产出模型的研究

近些年,中国的技术进步和产业结构变动对污染减排产生了显著影响。为了衡量技术进步和产业结构变动对污染减排影响的效应,本文采用2007年和2010年投入产出数据和污染排放数据,构建了14部门环境投入产出表,将完全排放系数分解为技术进步效应和产业结构变动效应进行分析。分析结果表明,整体上看,技术进步效应明显大于产业结构变动效应,第三产业结构变动对整个污染减排的作用最为积极和显著。但技术进步的影响始终是有限的,在"十二五"期间和以后发展中,应更加重视产业结构变动对污染减排的作用。     

专利质押贷款风险动态监控预警研究

专利质押贷款为科技型中小企业提供了一种有效的融资方式,但是由于资产规模等问题,专利质押融资风险远高于其它抵押贷款方式,因此需要在贷款后对企业还贷风险进行实时动态监控预警。首先建立了科技型中小企业贷款风险预警指标体系,并依据Kalman滤波理论建立了风险动态预警模型,确定了企业还贷能力由健康到轻度危机再到重度危机的两个分割点,进而检测企业贷款偿还能力从健康-财务波动-财务危机的演变轨迹。实证研究表明,该模型的总体判别准确率较高,预警效果好。      

我国进出口业务中选择FOB与CIF术语的风险及防范

随着我国对外开放程度的提高,外贸经济在我国整个国民经济中的比重越来越大.在竞争日益激烈的当今,由于进出口企业对贸易术语选择不当、风险认识不足以及自身素质不高等因素造成了我国外贸企业在国际贸易中的巨大损失.因此,在对外贸易中我国进出口企业应该正确选择贸易术语、充分认识存在的风险以及灵活地选择规避方法来保证进出口的顺利进行.     

Comparing factor analytical and circumplex models of brand personality in brand positioning

Competition has never been greater, which means it is more important than ever that organizations assess their brand management strategies, including brand personality management. However, little empirical research addresses the brand personality concept, particularly its role in product evaluation. An exception, which views brand personality as a set of human personality characteristics associated with a brand, has been criticized for its use of a factor analytical approach. An alternative approach posits that the brand represents a relationship partner with which the consumer may choose to engage; it corresponds to the interpersonal circumplex approach to personality modeling. The present study compares these two approaches by developing brand positioning maps and predicting consumer outcomes. The results support the factor approach in a purely quantitative sense, but the circumplex approach offers both a richer qualitative explanation of the findings by encompassing a broad spectrum of traits and a more diagnostic prediction of consumer outcomes. The alternative conceptualization of brand personality contained in these results should be of interest to brand managers. © 2009 Wiley Periodicals, Inc.     

论城乡网络化发展与文化整合--城市化的后现代视点

在现代主义语境里，城市和乡村被割裂为“城市——中心、乡村——边缘”的二元空间。而20世纪70年代之后，后现代思潮开始兴起和蔓延，其思想体系中包含的多元差异性、整体性、生态观和可持续发展等理念为城乡发展提供了新的思维范式和价值取向。本文将后现代主义引入城乡发展理论框架，以后现代视点重新审视城市与乡村的关系，提出空间整合和文化整合的城乡发展新取向，旨在为谋求后发展国家城市化的独特模式提供一种新观念和新视角。     

世界银行业产业组织与发展趋势

本文使用英国《银行家》杂志1998年-2009年的统计数据,从产业组织理论的角度,对全球银行业的结构、行为和绩效进行比较分析。研究发现,世界银行业规模不断扩大,集中度不断提高,正在走向垄断竞争的新格局。本文还联系银行业发展演变的历程和经济环境,简要探讨了未来银行业的并购和综合经营的发展趋势。     

军民融合协同创新驱动产业园区高质量发展研究

军民融合产业园区高质量发展对于推进军民深度融合、在全国形成可复制可推广经验具有重要意义。军民融合协同创新通过促进新知识涌现、推进新产业集聚发展,最终汇聚经济发展新动能,驱动园区高质量发展。在提出军民融合协同创新驱动园区高质量发展的机理与组织框架基础上,将发展模式归纳为以分享经济为背景的资源共享模式、以新型研发机构为核心的第三方模式、以产业联盟为核心的产业链拓展模式和以交易平台为核心的“PPP”模式,最后提出相关对策建议。     

Problems of private industrial economic development and its countermeasures for Zigong City,Sichuan Province,China

The differences of regional economic development between underdeveloped areas and developed areas are mainly embodied by different levels of private economic development. Since 20-year reform and opening-up to the outside world, the private industry of Zigong has developed gradually, become more and more economically competitive, and played a more and more important role in the economic structure of Zigong. This paper analyzes the problems of private economy and its countermeasures based on the research on its status quo.