货币政策对我国证券业产业结构、行为和绩效的作用主辅线分析

本文综述了政策与我国证券产业结构、行为和绩效作用路径方面的研究成果,将货币政策按照作用对象的不同分为两类,对这两类货币政策与证券业结构、行为和绩效进行格兰杰因果检验,进而提出了货币政策对我国证券业产业结构、行为和绩效的作用主辅线。     

中国对外贸易与城镇失业关系的实证分析

本文利用1978～2005年的年度数据,采用协整分析技术、误差修正模型和多变量Granger因果关系检验方法,检验了我国出口、进口、城镇失业人口之间的关系。实证分析结果表明,出口、进口、城镇失业人口之间存在唯一的协整关系;同时存在两个方向的Granger因果关系:进口增长是出口增长的原因;进口增长是城镇失业增加的原因,我国在制订贸易政策与就业政策时须注意三者的协调,以促进经济的增长。     

基于层次聚类推理的在线品牌诊断研究及其服装系统实现

本文从服装品牌在线评估与诊断的实际需要出发,研究了面向服装品牌的在线诊断评价体系,给出了在线品牌诊断模型,提出案例推理与规则推理相结合的一种层次聚类推理方法,并根据品牌诊断流程和映射算法设计了品牌诊断推理机制,给出了一个服装在线品牌诊断系统的实现。     

The use of open source internet to analysis and predict stock market trading volume

The objective of this paper is to evaluate the impact of information demand and supply on stock market trading volume. Few studies have demonstrated the role of Google search data in analyzing trading volume activity. In this study, we employ a proxy for information demand which is derived from weekly internet search volume. The latest is from Google Trends database, for 25 of the largest stocks traded on CAC40 index, between April 2007 and March 2014. We use news headlines as a proxy for information supply. We use Garch model to analyze and predict trading volume.The empirical results present new evidences. First, information supply has an impact on trading volume but information demand's impact is much more important. Secondly, by applying MCA to results found, it could be concluded that the impact of public information on transaction volume is conditioned by two elements: the firm and market news disclosure and the second element relates to the characteristics of the market participants, more precisely their news interpretations and their risk aversion. Thirdly, we used Chow structural break test to verify the stability of our model. We found that for securities with structural changes, information demand is the responsible variable of the change in our model. Finally, we found that information variables have a predictive power on transaction volume.This paper contributes to existing literature by incorporating open source internet-based data into the analysis and prediction of transaction volume. Using internet information about the stock market, which has appeared recently as an interesting research for financial empiricists, computer scientists and practitioners, will have a very important utility because quantifying demand and supply of information becomes possible.     

When gamification backfires: the impact of perceived justice on online community contributions

ABSTRACT

While online communities may enhance firm performance, they commonly fail to retain members. To address this challenge, scholars and managers call for the use of gamification. However, despite gamification’s growing use in online communities, insight into its effect on member experience and behaviours remain limited. We hypothesise that gamification affects member-perceived distributive and procedural justice. In experimental studies, we assess the impact of in-gamification perceived justice on member contributions. We find that while high in-gamification perceived procedural justice acts as a necessary prerequisite for member contributions, high distributive justice can reduce game-related uncertainty, thereby rendering gamified practices less fun, particularly for low-engaged community members that tend to value rewards. We add to the literature by (a) pinpointing the core role of perceived justice in the persistence of online communities, and (b) unveiling that high distributive justice can lead gamification to backfire in online communities by affecting member experience and contributions.     

Live streaming commerce from the sellers’ perspective: implications for online relationship marketing

ABSTRACT

Live streaming has recently become a popular direct selling channel which offers small, self-employed sellers unseen levels of consumer interaction and engagement. While the extant research focused on consumer motivation and intention to shop via live streaming, little is known from the seller’s perspective. Indeed, the potential advantages of live streaming commerce are accessible to everyone, but sellers experience different levels of success with this medium. Using a mixed quantitative and qualitative approach, this study analyses Facebook data of live streaming sellers to assess the nature and extent of engagement metrics, and delineate the dynamic, interactive live streaming sales process. We identify four sales approaches and twelve strategies adopted in acquiring and retaining customers. This typology of sales approach representing seller-focused antecedents is mapped against the relationship process and outcomes to provide a framework for understanding relationship mechanisms in live streaming commerce.     

TEM4改革前后完形填空的考点效度对比分析

2005年以来英语专业四级考试完形填空试题的考点效度比以前有所提高,但句子层次考点数量仍然偏高。教师在教学过程中应注重培养学生的语篇理解能力和逻辑分析能力,提高学生的语言综合运用能力。     

生物工程大实验课程改革与探讨

生物工程大实验是生物工程专业的一门重要的综合性实验课程,就当前生物工程大实验教学存在的几点问题,从实验内容、实验体系、实验方法、考核方式方面对生物工程大实验进行改革与探讨。     

The Visual Representation of Border Tourism: Demilitarized Zone (DMZ) and Dokdo in South Korea

The demilitarized zone (DMZ) and Dokdo mark South Korea borders with North Korea and Japan respectively. Each borderland is a socially constructed symbolic cultural landscape shaped in part by tourism. In this study, a sample of 2202 online images was inspected using content‐semiotic analysis to understand how visual representation of border tourism works. It was found that visitors via social media and government censorship play major roles in constructing representations of (i) alienated borders with iconic war heritage attractions at the DMZ and (ii) an alienated and isolated Dokdo. Both borders highlight patriotic/nationalistic ‘flagging’ and the gaze across. Copyright © 2013 John Wiley & Sons, Ltd.