农业科技投入与农业经济发展的动态关联机制分析

运用动态经济学的分布滞后模型、单位根检验、协整分析和Granger因果检验模型,对中国农业科技投入与农业经济增长之间的关系进行实证分析.结果显示:中国农业科技投入与农业经济增长之间具有三期的关联性,农业科技投入每增加1％,当年农业经济将增长0.1898％,第二年增长0.1423％,第三年增长0.0949％,第四年增长0.0474％,影响总计为0.4744.农业科技投入与农业经济增长之间存在长期的稳定均衡关系,但农业科技投入对农业经济增长的促进作用还不够,二者之间没有形成一种协调互动的反馈机制.要保障中国农业的稳定发展,今后必须进一步加大农业科技投入.     

浙江科技投入与服务业经济增长关联的实证分析

通过采用浙江省2003—2011年的统计数据,运用灰色关联分析法,研究浙江省科技投入各指标与服务业经济增长之间的关系。研究表明,浙江省的科研经费支出、研发(R&D)经费支出和科技投入与服务业经济增长均呈现比较显著的正相关关系,影响最大的是科技人员总数,其次是科研经费支出,最后的是研发(R&D)经费支出。     

基于协整理论的区域物流发展与经济增长关系研究

选取重庆1985-2011年物流与经济增长相关数据,应用ADF方法、 DF-GLS方法和PP方法对时间序列进行了单位根对比性检验,应用EG两步法对时间序列进行了协整分析和格兰杰因果关系检验。研究表明：货物周转量和物流网络里程同时作为解释变量分析物流发展与经济增长关系时会引起共线性问题;物流业总产值和经济增长不具有协整关系;货物周转量与经济增长具有协整关系且有单向的格兰杰因果关系,即经济增长会使得货物周转量增加。     

创新资源视角的创新型城市内在成长动力研究

选取上海市1995～2010年的时间序列数据,综合运用因子分析、单位根检验、协整检验、Granger因果关系检验、脉冲响应函数进行深入研究。研究发现,创新型城市成长的内在驱动因素主要靠创新财力资源,其次是创新知识资源,最后是创新人力资源;创新型城市成长有利于创新资源的积聚。提出了保持创新型城市持久成长动力的政策建议。     

文化资本对我国经济增长的影响——基于扩展MRW模型

将文化资本作为重要投入要素引入经济增长模型,构造了扩展的MRW模型分析框架。在测算我国31个省份2004～2009年的物质资本、人力资本和文化资本存量基础上,研究各资本投入要素在稳态经济运行和实际经济运行情形下对我国经济增长的影响。实证结果表明,目前我国经济还未达到稳定增长阶段,现阶段经济增长仍为物质资本推动型,人力资本和文化资本的作用有限;当经济增长达到稳态时,我国经济增长的粗放模式将得到调整,物质资本的贡献大幅下降,而人力资本和文化资本将成为我国经济增长的主要推动力。     

成长型企业社会责任与企业价值关系的实证研究

摘妻：基于2009-2011年我国A股上市公司数据,运用托宾Q分析了我国上市公司成长型企业的价值,并对成长型企业的社会责任与企业价值的关系进行了回归分析.结果表明：承担相应的社会责任有利于提高成长型企业价值;成长型企业的企业债务责任、员工责任、环境责任和股权责任与企业价值显著正相关;企业经营责任和政府责任与企业价值相关性不显著.因此,成长型企业在履行社会责任时有相应的侧重点;企业应实现战略需求与企业价值相匹配,通过相应的社会责任行为实现两者的有效结合.     

评李陈玉之《楚词笺注》

李陈玉《楚词笺注》"自叙"所表达的主要意图是褒"笺"贬"注"。此书褒"笺",重视对作品进行层次分析,值得肯定,但其理论上矫枉过正,实践也并非成功。李氏贬"注",且书中有些"注"确也过于随意、偏激,但不少"注"独创一说,难能可贵。     

A Latent Growth Curve Approach to Investigating Developmental Dynamics and Correlates of Change in Children's Perceptions of Physical Competence

Abstract

In both the physical and academic domains interest has recently grown regarding developmental change in children's perceptions of competence. Recent advances in statistical methodology, such as latent growth modeling, enable the researcher to analyze developmental trends from both an inter- and intraindividual perspective, thus serving to increase our understanding of correlates of change in perceived competence. Using latent growth modeling, the purpose of the present study was to investigate developmental change in children's perceived competence at physical skills, examining maturational factors and chronological age as possible correlates of change. Subjects were male adolescents (N = 94). Data were collected during the child's sixth, eighth, and ninth grade school years. Results revealed a good fit for the hypothesized model, which specified mean level changes in the variables over time and an interrelationship among the latent chronometric common factors. Although a significant relationship existed between maturation and perceived competence, no significant relationship was evident between chronological age and perceived competence. Findings are discussed with particular reference to the utility of latent growth curve models for assessing developmental processes at both the inter- and intraindividual level.     

Perceptions of African American Faculty in Kinesiology-Based Programs at Predominantly White American Institutions of Higher Education

The purpose of this study was to examine the perceptions of African American faculty on their organizational socialization in kinesiology-based (i.e., sport pedagogy, exercise physiology, motor behavior, sport management/history) programs at predominantly White American¹ institutions of higher education (PW-IHE). Participants were 9 African American tenure-track faculty members from various kinesiology-based programs at PW-IHE. Data were gathered via interviewing and analyzed within the framework of critical race theory (Ladson-Billings, 2000). Findings are presented using storytelling and thematic narratives. Interviews with the participants revealed four major recurring themes with regard to: (a) resources, opportunities, and power structures; (b) programmatic neglects and faculty mentoring needs; (c) social isolation, disengagement, and intellectual inferiority issues; and (d) double standards, marginalization, and scholarship biases. This study suggests that faculty and administrators at PW-IHE should develop sensitivity toward organizational socialization issues relevant to faculty of color.     

Wikipedia,Critical Social Theory,and the Possibility of Rational Discourse 1

Information systems researchers that apply critical social perspectives frequently emphasize the potential for information technology to serve as a mechanism for increased rationalization, domination, and control. Such theorists often overlook or discount the liberating aspects of information systems. In this study, we apply the ideal of rational discourse developed by Jürgen Habermas to the phenomenon of Wikipedia in an effort to explore empirically the emancipatory potential of information systems. We contend that Wikipedia embodies an approximation of the necessary conditions for rational discourse. While several challenges persist, the example of Wikipedia illustrates the positive potential of information systems in supporting the emergence of more emancipatory forms of communication. The corresponding implications for researchers and design professionals alike are discussed.