网上拍卖交易机制有效性研究——来自淘宝网面板数据的证据

本文考察了淘宝网上信任保障和购物搜索两类交易机制的有效性.网上拍卖的交易机制越来越完善,除了信用度和好评率等基本信用指标外,网站先后建立了卖家服务质量、店铺动态评分、搜索排序等重要交易机制,本文利用淘宝网上的面板数据来验证上述机制的有效性.回归结果表明,信用度作为网上拍卖最早引入的一项信用指标仍发挥着一定的作用;店铺动态评分和卖家服务质量没有发挥应有的作用.进一步的解释是:网上市场存在较高的搜寻成本,买家利用搜索排序来降低搜寻成本,信用度的重要性因而被信用度排序放大;买家无法根据店铺动态评分和卖家服务质量进行筛选排序,导致这两大机制没有发挥应有作用.购物搜索在网上交易中发挥着重要作用,信任机制依赖搜索工具发挥作用.除混合数据OLS回归外,本文还利用面板数据和联立方程回归分析控制了遗漏变量偏误和内生性问题.     

C2C环境下卖家差异化策略对销量的影响——基于两阶段决策的买家购物决策分析

C2C环境下激烈的竞争促使卖家通过差异化策略来弱化价格竞争以提高销量。考虑到C2C买家的搜索成本,本文以买家两阶段决策过程为基础建立买家效用函数,分析卖家差异化策略对销量的影响,并利用从淘宝收集的同质产品的面板数据进行实证研究。研究结果表明,卖家的被搜索成本、信用、上个月的销量对本月销量有显著的影响,而提供的服务和收到的评分无显著影响。通过考察销量的Gini系数和卖家服务的差异化水平,我们发现卖家之间的竞争异常激烈,而淘宝提供的差异化渠道却非常有限,卖家只能在信用和被搜索成本上进行差异化。最后,本文依据研究结果对C2C环境中的卖家和平台提出了建议。     

Speed in the Internationalization Process of the Firm

While firm internationalization processes have been understood as being dynamic, the dimension of speed has rarely been the main focus of research efforts, which, until a decade ago, focused principally on explaining sequences of entry modes and choices of markets. The emergence of the study of international entrepreneurship has enhanced the role of speed, although this has usually been measured in terms of the time lag between a firm's foundation and its initial international action, with little attempt at defining and explaining the speed of the process once it is under way. This study reviews the concept of speed from an internationalization perspective, describes the multidimensional nature of the concept and sets out the different aspects that link timescales with the types of changes – continuous and discontinuous – that take place during internationalizing processes. The paper concludes with a research agenda as a guide for future work on considering the role of speed in the internationalization process.     

Inter-firm collaborations and supply chain coordination: review of key elements and case study

Considering the effects of globalisation, the increase of production and energy costs, and the introduction of advanced technologies, companies need to change their way of doing business if they want to stay competitive. One way of doing this is to establish collaborations with suppliers, distributors and retailers, in order to exchange products efficiently and create value for customers. Nevertheless, the structure of the collaboration must be designed carefully and some coordination mechanisms must be implemented to support this way of doing business. In this article, we first analyse: why companies work together, how they should build their partnership, and which strategies they can implement to facilitate coordination of supply chain activities. We then report a case study of collaboration in the forest industry that shows the benefits of implementing coordination mechanisms as well as the necessity of using incentives to better share these benefits.     

Waste identification diagrams

Value Stream Mapping (VSM) is a very popular tool in lean environments to represent production flows, mapping value stream of a product or family of products, and helps to identify some types of waste. Although very popular, this tool has some limitations as already described in many publications, especially in terms of restrictions in showing most types of waste as well as in its inability to represent various production routes. The purpose of this study is to introduce the waste identification diagram (WID), a new tool to represent production units with its different forms of waste, which overcomes some VSM limitations. The originality of WID comes from the use of its symbols’ dimensions to convey, in a visual and immediate way, relevant information about a production unit. In this paper, WID is applied on a production unit of a lift manufacturer, for testing its performance and comparing it to VSM. The main findings are that WID is in general more effective than VSM in terms of representation of complex production units and in terms of identification of more forms of waste. WID must however overcome some of its limitations such as the lack of information-flow representation and the links to suppliers and clients.     

张爱玲《传奇》的现代性和对话性

张爱玲作品常被误读为古典式叙述,但通过对其小说集<传奇>的叙述视角、叙述话语模式和非叙事性话语的分析,可以显示出其艺术表现的现代性.很少有作家像张爱玲那样有着极强的读者意识.她作品中的对话性不仅表现于作品本身,还表现于她与其特定的读者(上海人)之间.     

小标点里大有学问——也谈英文写作中的标点问题

本文在呼应王芳、张立坤的<英文写作中的标点问题>(载2007年8月<疯狂英语教师版>)一文的基础上,指出了英文写作中的其它易被初学者忽略的一些问题,如英文标点的母语迁移,逗号粘连,引号的位置和大小写问题,连字符与分行的问题等,同时对王、张一文的个剐地方做了一些修正.     

构建市场营销专业学生创新思维和创新能力指标体系

市场营销专业非常注重实践能力和创新能力，但由于长期以来受应试教育的影响以及忽视学生自主学习等诸多因素，很多市场营销专业的学生还缺乏创新精神，创新能力不强。本文阐述了市场营销专业学生创新思维与创新能力的特点，并提出了一系列评价指标，希望评价的过程和结果能成为激励大学生提高全面综合素质的动因。     

论新时期图书馆的咨询工作

文章从传统图书馆咨询服务的特点入手 ,重点论述了网络环境下图书馆信息咨询服务的三个特点 :即从咨询服务配角到主角的转换 ;咨询服务范围进一步扩大 ;内涵进一步深化 ,服务手段由传统向现代化转变。最后强调了设置虚拟馆藏和学科专家的必要性