How to use the Internet

The Internet is the fastest growing new information service, but it is still an unknown territory to many production and inventory control (PIC) managers. It should not be, and by reading this article they can get a rough idea what it is, how to use it, why it should be used, and where to start.     

The effects of information sharing and interactivity on the intention to use social networking websites

Social networking sites (SNSs), which satisfy the primary demands of making friends, learning, and shopping, and are inseparable from human life, have been booming in recent years that domestic or international websites have endeavored to have users access to their websites. This study proposed relational model to examine the intention to use SNSs, and also applied a questionnaire survey to examine differences in this intention among various user groups. The findings indicated that that, in order to promote the intention to use social networking sites, managers should work to enhance interactivity and information sharing, and should also consider the feelings and attitudes of users. Different user groups lead to different outcomes with regard to the intention to use model developed in this work. However, the intention to use of most users in the sample groups was enhanced by the SNSs characteristics of information sharing and perceived playfulness.     

突出旅游特色 建设山水新城

本文总结了长春净月潭旅游经济开发区从 1995年成立以来从规划到建设管理的初步经验。     

A multivariate method for analyzing and improving the use of student evaluation of teaching questionnaires: a case study

Student evaluation of teaching (SET) questionnaires are the most common methods of evaluation used by European universities to assess the quality of teaching delivered by their lecturers. A series of multivariate statistical methods were applied to analyze the underlying structure of the SET questionnaire used by the Universidad Politecnica de Valencia (UPV) in order to develop an appropriate methodology for extracting, analyzing, and interpreting the information contained in the questionnaire. In a first step, a confirmatory factorial analysis (CFA) was developed in order to evaluate the reliability, validity and dimensionality of it, by means of two relatively new parameters commonly used in structural equation modelling: the compound reliability and extracted variance for each latent construct. In a second step, cluster analysis (CA) was used to test the ability of the questionnaire for the identification of different categories of lecturers. In the last step, a tree classification method, the chi-squared automatic interaction detector (CHAID), was used in order to characterize the different lecturer’s categories obtained with CA according to all available information regarding the teaching staff and subjects.     

物联网引发供应链管理革命

低价无线射频电子标签、产品电子代码(EPC)统一标准与互联网的有效组合,孕育出正在改变世界产品生产和销售管理的网络系统,这就是物联网(Internet of Things)。物联网展示了一个在全球范围内对     

Second-order approximation of dynamic models without the use of tensors

Several approaches to finding the second-order approximation to a dynamic model have been proposed recently. This paper differs from the existing literature in that it makes use of the Magnus and Neudecker (1999) definition of the Hessian matrix. The key result is a linear system of equations that characterizes the second-order coefficients. No use is made of multi-dimensional arrays or tensors, a practical implication of which is that it is much easier to transcribe the mathematical representation of the solution into usable computer code. Matlab code is available from http://paulklein.se/newsite/codes/codes.php; Fortran 90 code is available from http://alcor.concordia.ca/∼pgomme/.     

城市土地集约利用动力机制研究

通过对城市土地集约利用的动力机制的研究,将其划分为内在动力机制和外在动力机制两种类型。其中,内在动力机制主要由聚集效应机制和要素替代机制两方面组成,外生动力主要包括市场驱动机制、政府导向与激励机制、技术创新机制等方面。城市土地就是在内、外在动力机制的共同作用以及多方面因素的制约下,逐步从一种在时间上、空间上的无序状态转变为有序状态的。     

Focus groups as a tool in the construction of questionnaires: the case of discriminatory attitudes

The aim of the present article is twofold First, it tests and demonstrates the supplementary use of focus groups to construct quantitatively oriented survey on anti-minority sentiment. Second, it clarifies two major theoretical concepts-prejudice versus perceived threat-in the research on discriminatory attitudes towards minority populations. More specifically, by using data from focus group discussions on foreign workers in Israel, the study examines the use of such groups for measurement of prejudice and perceived threat within the social and cultural context of Israeli society. The analysis of focus group discussions provides adapted questionnaire scales for measuring prejudice and perceived threat. The findings support the premise that prejudice and perceived threat are two distinct theoretical concepts.     

Posting,quoting, and replying: a comparison of methodological approaches to measure communication ties in web forums

Active involvement in discussion-based communities is nowadays a firm part of people’s online activities. The measurement of communication ties and networks between contributors to such domains is thus becoming a relevant research question in social sciences. However, especially in web forums, very often almost no direct relational information exists that would indicate the presence of communication ties among contributors. In contrast with the reply-to structure of Usenet newsgroup or mailing list conversations that contain explicit relational information created by the contributors, some web forums only enable participants to add new posts to threads or to quote preceding posts in threads. When discussions emerge, it is difficult to identify who is replying to whom. Drawing on the social network studies dealing with the conversational patterns in Usenet and web forums, this paper presents an alternative approach to identifying the ties between authors of posts. Several assumptions are discussed, and different measures are developed and empirically evaluated. The findings provide a starting point for the development of a standardized methodology for studying social networks in online communities where only limited direct information about communication ties is available.     

物联网对物流业发展的影响

在物流行业中应用物联网技术,将极大地提高物流效率,降低物流成本。分析了物联网技术对物流业发展的影响,提出政策、法律、安全、标准和成本则是发展基于物联网的现代物流所存在的主要问题。     

Estimation of a continuous-time dynamic demand system

A continuous-time dynamic model of consumers' demand, explicitly taking account of the roles of depreciation, interest rates, habits, and stocks, is estimated using recently developed techniques from discrete quarterly UK data on three broad commodity groupings. The results suggest that, whilst being a significant determinant of demand, the actual magnitude of the influence of changes in interest rates may be relatively small in the long run. The cross-price effects of durable goods are also found to be statistically significant, and symmetry of long-run compensated price responses is not rejected.     

网银业务纠纷的防范与解决

随着信息技术的进步和互联网的普及,我国网上银行业务得以快速发展。在充分肯定网银业务优越性的同时,也应该看到,由于我国网银业务还处于发展阶段,运行中出现了诸多的问题,甚至损害了客户的利益,以致客户与银行之间出现了不少的纠纷,一定程度上影响到了社会公众的认可度,制约了网银业务的健康发展。该文主要是从研究和解决这些纠纷入手,提出要加强对网银业务各参与方的正确引导,进一步规范业务行为,改善网银业务发展环境,防范市场风险,化解各方矛盾纠纷,提高网银业务的整体应用水平。     

互联网对口碑营销的影响分析

经济危机到来时,众多企业压缩开支准备过冬。在这种情况下,具有较高投资回报率和较好传播效果的口碑营销焕发出勃勃生机。结合当今社会互联网普及现状,探讨互联网对口碑营销的影响及企业在互联网模式下如何开展口碑营销。     

中信要约收购广发失败的原因及启示

2004年中信证券收购广发证券事件是我国第一起真正意义上的完全市场化要约收购案例,尽管以中信失败而告终,但其对我国的证券业、并购业产生了非常重大的影响。本文主要分析了中信证券为何收购广发证券、收购失败的原因及给我们的启示。     

Measuring the impact of the approach to migration in the quality of web service interfaces

There is a good consensus on the strategic value of service-oriented architecture (SOA) as a way of structuring systems, and a common trend is to migrate legacy applications that use outdated technologies and architectures to SOA. We study the effects in the resulting Web Service interfaces of applying two traditional migration approaches combined with common ways of building services, namely, direct migration with code-first and indirect migration with contract-first. The migrated system was a 35-year-old COBOL system of a government agency that serves several millions of users. In addition, we provide a deep explanation of the trade-offs involved in following either combinations. Results confirm that the ‘fast and cheap’ approach to move into SOA, which is commonplace in the industry, may deliver poor service interfaces, and interface quality is also subject to the tools supporting the migration process.     

努力做好纪检监察工作 为农场改革发展稳定保驾护航

纪检监察工作在企业改革发展中发挥着重要作用。广西农垦国有金光农场纪检监察工作开展扎实有效,推动了农场经济持续快速发展。     

努力做好纪检监察工作为农场改革发展稳定保驾护航

纪检监察工作在企业改革发展中发挥着重要作用.广西农垦国有金光农场纪检监察工作开展扎实有效,推动了农场经济持续快速发展.     

淘汰高耗能落后产能的着力点

当前,根据中央的部署,我国对高耗能落后产能正在进行治理淘汰.但由于任务艰巨,存存进展缓慢、经济手段缺乏、善后机制亟待建立等问题.因此.应加紧实施淘汰落后产能专项行动,运用市场化手段和激励性政策,加快淘汰落后产能的步伐.     

Estimating willingness to pay for medicare using a dynamic life-cycle model of demand for health insurance

Medicare is the largest health insurance program in the US. This paper uses a dynamic random utility model of demand for health insurance in a life-cycle human capital framework with endogenous production of health to calculate the individual willingness to pay (WTP) for Medicare. The model accounts for the feature that the demand for health insurance is derived through the demand for health, which is jointly determined with the production of health over the life-cycle. The WTP measure incorporates the effects of Medicare insurance on aggregate consumption through effects on medical expenditures and mortality, and consumption utility of health. The model is estimated using panel data from the Health and Retirement Study. The average WTP or change in lifetime expected utility resulting from delaying the age of eligibility to 67 is found to be $ 24,947 in 1991 dollars ($ 39,435 in 2008 dollars). However, there is considerable variation in the WTP, e.g., in 1991 dollars the WTP of individuals who have less than a high school education and are white is $ 28,347 ($ 44,810 in 2008 dollars), while the WTP of those with at least a college degree and who are neither white nor black is $ 15,584 ($ 24,635 in 2008 dollars). More generally, the less educated have a higher WTP to avoid a policy change that delays availability of Medicare benefits. Additional model simulations imply that the primary benefits of Medicare are insurance against medical expenditures with relatively smaller benefits in terms of improved health status and longevity. Medicare also leads to large increases in medical utilization due to deferring of medical care prior to eligibility.