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101.
Predicting the geo-temporal variations of crime and disorder 总被引:2,自引:0,他引:2
Traditional police boundaries—precincts, patrol districts, etc.—often fail to reflect the true distribution of criminal activity and thus do little to assist in the optimal allocation of police resources. This paper introduces methods for crime incident forecasting by focusing upon geographical areas of concern that transcend traditional policing boundaries. The computerised procedure utilises a geographical crime incidence-scanning algorithm to identify clusters with relatively high levels of crime (hot spots). These clusters provide sufficient data for training artificial neural networks (ANNs) capable of modelling trends within them. The approach to ANN specification and estimation is enhanced by application of a novel and noteworthy approach, the Gamma test (GT). 相似文献
102.
马元兴 《无锡商业职业技术学院学报》2003,3(3):3-5
高等职业院校实施学分制是教育教学改革的必然趋势,因此,高等职业院校要勇于实践,不断探索。文章就高等职业院校如何实践学分制,提出了从制订学分制的政策、学分制的操作流程到建立学分制管理手段的一些建议。 相似文献
103.
创新是当今世界发展的主题,科学创新是创新链条的初环,研究科学创新的动力系统成为一种必然.科学创新的人文内涵表现在各种人文要素对其影响上,这些结构要素的系统动力学效应成为科学创新的动力源泉.这些人文要素大体包括哲学、宗教、政治制度、法律、社会道德、文学和艺术等.它们主要从诱发基本观念、规范、情感三个角度对科学创新产生影响. 相似文献
104.
供应链管理绩效评价及激励机制 总被引:7,自引:0,他引:7
本文通过分析供应链管理的特点、目标和内容,提出供应链管理绩效评价指标体系,其中矩阵指标具有一定的创新,且较好地反映了供应链企业之间的复杂关系。介绍了确定供应链管理的绩效指标值的两种方法,并分析了供应链管理六种激励模式。 相似文献
105.
This study investigates how participating in strategic alliances with rivals affects the relative competitive positions of the partner firms. The paper builds on studies that show significant differences in the outcomes of scale and link alliances. The study argues that the more asymmetric outcomes of link alliances translate into greater changes in the relative market shares of the partner firms, due to unbalanced opportunities for inter‐partner learning and learning by doing. We find support for this argument by examining 135 alliances among competing firms in the global automobile industry, from 1966 to 1995. Copyright © 2004 John Wiley & Sons, Ltd. 相似文献
106.
107.
Lingfang Xie Xiaoming Zhu 《美中经济评论(英文版)》2004,3(9):20-29
This paper evaluates the performance change of the private enterprises listed on China's two exchanges during 2 years before and after listing in the period of 1996-2001. It is concluded that earning ability, real sales and financing are significantly improved, while only profitability decline a little bit after the private firms listed. In addition, we find that IPO private firms have appreciably better performance than that of BS ones as well as the financing condition becomes finer, which is relative to both the attributes of the private enterprises and Chinese regulatory rules. Therefore, we figured out that the outcome of private firms listing is positive, and China's economic reform will be a step-by-step process. 相似文献
108.
代理制度是民商法中一项重要的法律制度,它在现代商品经济中起着不可或缺的作用。过去我国由于商品经济长期不发达,我国的民法,特别是其中的代理制度处于严重的滞后状态,这对我国目前市场经济的发展产生了负面影响。因此,对我国民事代理制度存在的缺陷加以检讨和反思,以期对我国的代理立法和实务有所裨益。 相似文献
109.
In his 1960 book, Sraffa suggested using a composite commodity,which he called the Standard commodity, to solveRicardo's search for an invariable measure of value, i.e., astandard capable of isolating the price movements of any othercommodity induced by changes in income distribution. The absencein Sraffa's book of an explicit proof of the invariance propertyof this standard gave rise to many misunderstandings about itsmeaning and its role as an invariable measure of value. In orderto clear up these questions, Bellino (On Sraffa's Standard commodity,Cambridge Journal of Economics, vol. 28, 12132, 2004)has proposed a proper definition of an invariablemeasure of value, showing that Sraffa's Standard commoditydoes fulfil the requirements of this definition. He claims thatthe fulfilment of this property (but not the constancy of itsnominal price) qualifies the Standard commodityas an invariable measure of value. In this paper, a proof ofthe invariance of the price of the Standard commodity with respectto changes in income distribution is given, and the equivalenceof this property with Bellino's definition of invariance isshown. 相似文献
110.
Satish Jayachandran Rajan Varadarajan 《Journal of the Academy of Marketing Science》2006,34(3):284-294
Previous research provides conflicting evidence of the association between the past performance of a business and its competitive
responsiveness, with researchers observing both positive and negative relationships. To clarify this issue, the authors test
a model using survey data from the retailing industry. The model delineates direct and indirect mediated paths through ability
to respond, motivation to respond, and awareness of competitors’ actions to show how past performance can have both positive
and negative influence on competitive responsiveness. However, the overall impact of past performance of an organization on
its competitive responsiveness is positive. The implications of these findings for research, practice, and theory are discussed.
Satish Jayachandran (satish@moore.sc.edu) is an assistant professor of marketing in the Moore School of Business at the University of South Carolina.
His research interests are focused on issues related to the market responsiveness of firms. His research has been published
in theJournal of Marketing and theJournal of the Academy of Marketing Science. He was a recipient of the Harold H. Maynard Award for 2001 from theJournal of Marketing. He was nominated a young scholar by the Marketing Science Institute in 2003.
Rajan Varadarajan (varadarajan@tamu.edu) is Distinguished Professor of Marketing and holder of the Ford Chair in marketing and e-commerce at
Texas A & M University. His teaching and research interests are in the areas of strategy, international marketing, and e-commerce.
His research on these topics has been published in theJournal of Marketing, theJournal of the Academy of Marketing Science, theAcademy of Management Journal, Strategic Management Journal, Sloan Management Review, California Management Review, Business
Horizons, theJournal of Business Research, and other journals. 相似文献