Identifying excellent researchers: A new approach     

Richard S.J. Tol 《Journal of Informetrics》2013,7(4):803-810

Quantile kernel regression is a flexible way to estimate the percentile of a scholar's quality stratified by a measurable characteristic, without imposing inappropriate assumption about functional form or population distribution. Quantile kernel regression is here applied to identifying the one-in-a-hundred economist per age cohort according to the Hirsch index.  相似文献   

Topic‐specific market concentration in the information services industry: Evidence from the DIALOG group of data bases     

James Christopher Westland 《The Information Society》2013,29(3):127-138

Abstract

Recent interest has been expressed in the potential of information technology to create new kinds of monopolies. This paper looks at production and marketing factors in the information services industry which may increase concentration in the hands of fewer producers, potentially leading to monopoly formation. The research develops an economic model of topic‐specific market concentration and delineates the factors which might cause monopolies to occur in the markets of information data base production firms. The model shows that market concentration rises with inelastic demand, reduced marginal costs and efficient technology, and increased data acquisition costs exacerbated by low rates of data obsolescence. These effects are empirically investigated in the DIALOG group of data bases. The results of the research have implications for corporate information systems and information systems in the public sector.  相似文献   

参与式教学法在国际经济学教学中的应用     

崔艳娟  晚春东  徐晓飞 《黑龙江教育学院学报》2012,(9):56-58

随着人才国际化的发展,应用经济学核心课程"国际经济学"备受关注。以多媒体为平台的参与式教学法不但能引发学生的学习兴趣,也能培养学生独立解决问题的能力以及团队合作的精神。根据调研与实证分析结果,在学生互动方法、多媒体教学以及教学环境等方面对参与式教学法的应用进行设计与组织实施,并提出参与式教学法应用的注意事项,以期为国际经济学相关课程的教学提供参考与借鉴。  相似文献   

Ideology,Materiality, and Counterpublicity: William E. Simon and the Rise of a Conservative Counterintelligentsia     

Robert Asen 《Quarterly Journal of Speech》2013,99(3):263-288

As a conceptual term, “counterpublic” serves scholarship best when contributing to a critical-theory project, which means that particular constellations of materiality and ideology may bolster some calls for counterpublicity while gainsaying others. This may be investigated by examining how a text upholds or betrays an advocate's values, seeking out textual markers of access and influence that belie claims of marginalization, and assessing whether an advocate's discourse implicitly or explicitly widens or narrows discursive space for others. From this perspective, although William Simon claimed that pro-business advocates had been excluded from public debates in his 1978 book A Time for Truth, he nevertheless asserted a commitment to negative liberty that discounted potentially conflicting values in a pluralistic society, evidenced strong financial and political connections as well as a patrician background and bearing, and restricted discursive space for others.  相似文献   

石器时代的文化与理性——评《石器时代经济学》     

李若慧 《贵州教育学院学报》2013,(10):30-33

萨林斯（MarshaLlSahlins,1930-）对于形式论之于用经典的经济学理论和传统视角来看待和分析原始社会的经济的批驳,证明了原始社会人们的“物质富裕”,他们的生产主要为了当前的消费,交换亦非营利性交换,而是在贸易伙伴关系的基础上本着道德原则进行的交换。同时,马歇尔·萨林斯指出,原始社会亦存在理性,文化与理性绝不是对立的,是文化构造了理性。  相似文献   

回顾与展望：财经类院校教育国际化的发展路径探索     

夏国恩  蓝勋 《煤炭高等教育》2013,(2):11-15

财经类高校是我国高等教育的重要组成部分,通过回顾财经类高校的发展历程,分析财经类院校教育国际化的必要性,进而从财经院校的教育思想、办学模式、课程建设、教师队伍等方面梳理我国财经类高校教育国际化办学的基本形式,指出中国高等财经教育国际化进程中面临的困难,提出我国高等财经教育国际化道路的选择,以期能对我国高等财经教育国际化发展有所借鉴和启示。  相似文献   

系统观视角的循环经济内涵、特征及其发展策略研究     

淦未宇  徐细雄 《未来与发展》2009,(1):2-6

循环经济作为一种全新的经济发展模式,本身具有明显的系统性特征。本文在分析循环经济内涵及其系统特征的基础上,从企业、产业、区域和经济总体系统四个层面分析了循环经济的系统结构．并在此基础上构筑了一个包含企业微循环子系统、区域运行服务管理子系统、循环经济发展模式研究子系统与国家循环经济政策制定子系统在内的循环经济系统分析框架。本文从系统观视角出发．深入剖析了各子系统的功能定位及其内在有机联系,并提出了循环经济的系统观发展思路。本研究对于推进我国发展循环经济发展模式,实现可持续发展具有一定的现实与理论意义。  相似文献   

Distributed control of cluster lag consensus for first-order multi-agent systems on QUAD vector fields     

Yi Wang  Zhongjun Ma  Guanrong Chen 《Journal of The Franklin Institute》2018,355(15):7335-7353

This paper addresses the problem of cluster lag consensus for first-order multi-agent systems which can be formulated as moving agents in a capacity-limited network. A distributed control protocol is developed based on local information, and the robustness of the protocol is analyzed by using tools of Frobenius norm, Lyapunov functional and matrix theory. It is shown that when the root agents of the clusters are influenced by the active leader and the intra-coupling among agents is stronger enough, the multi-agent system will reach cluster lag consensus. Moreover, cluster lag consensus for multi-agent systems with a time-varying communication topology and heterogeneous multi-agent systems with a directed topology are studied. Finally, the effectiveness of the proposed protocol is demonstrated by some numerical simulations.  相似文献   

Above a swamp: A theory of high-quality scientific production     

Bralind Kiri  Nicola Lacetera  Lorenzo Zirulia 《Research Policy》2018,47(5):827-839

We elaborate a model of the incentives of scientists to perform activities of control and criticism when these activities, just like the production of novel findings, are costly, and we study the strategic interaction between these incentives. We then use the model to assess policies meant to enhance the reliability of scientific knowledge. We show that a certain fraction of low-quality science characterizes all the equilibria in the basic model. In fact, the absence of detected low-quality research can be interpreted as the lack of verification activities and thus as a potential limitation to the reliability of a field. Incentivizing incremental research and verification activities improves the expected quality of research; this effect, however, is contrasted by the incentives to free ride on performing verification if many scientists are involved, and may discourage scientists to undertake new research in the first place. Finally, softening incentives to publish does not enhance quality, although it increases the fraction of detected low-quality papers. We also advance empirical predictions and discuss the insights for firms and investors as they “scout” the scientific landscape.  相似文献   

个体知识分享行为的理论透视   总被引：2，自引：1，他引：1  

庄玉梅  张体勤 《图书情报工作》2009,53(20):118-121

对个体知识分享行为的理论阐释可以说明其产生的动因,发现内外影响因素。基于心理学理论的阐释可以说明分享行为产生的心理动因;基于社会学、经济学理论的阐释,可以说明影响个体动因和行为产生的外部环境因素;基于多理论视角的阐释,可以综合考察和分析各种影响个体知识分享行为的因素及其作用机理。理论研究的成果有助于构建利于知识分享的环境机制。  相似文献