电子商务平台吸附能力的影响机制研究———平台柔性和控制机制的交互效应

平台型电子商务已经成为未来经济发展的主要推动力,如何构建并应用这种平台商务模式已经成为企业管理者普遍关心的问题.然而现有文献对电子商务平台的研究还比较少,主要基于平台主体的案例研究,缺乏从平台商家角度对如何形成电子商务平台的吸附力并激发网络效应的实证检验.基于模块系统理论和控制机制的相关文献,提出了平台柔性、平台控制、以及二者交互作用对平台吸附能力的影响模型.通过对185家平台参与企业的实证研究,研究结果显示平台柔性、正式控制、和关系控制均显著影响电子商务平台吸附能力;另外,平台柔性和正式控制对电子商务平台吸附能力的形成存在替代效应,平台柔性和关系控制对电子商务平台吸附能力的形成存在互补效应,正式控制和关系控制对电子商务平台吸附能力也存在互补效应.研究发现,对于模块系统理论和控制机制的应用情景进行了扩展和延伸,也为电子商务平台的管理者提供了有益的建议.     

Interacting mechanisms of time inconsistency

We interact two prominent behavioral mechanisms of time inconsistency that have been used to study inadequate saving: hyperbolic discounting and short-term planning. Hyperbolic discounting is a conventional way to model impulsive decision making, and short planning horizons have been used to represent myopia. One might expect that interacting both mechanisms within the same model would compound the inadequacy of saving. However, our key finding takes the form of a paradox: hyperbolic discounting does not affect consumption and saving allocations if the planning horizon is short and fixed, although it will affect allocations if the planning horizon is equal to the remaining life span. We demonstrate analytically that this finding is robust to the shape of the disposable income path, to the coarseness of the time grid, and to alternative forms of the period utility function.     

上海国资引领战略性新兴产业发展

上海国资在战略性新兴产业发展中有其独特的优势,同时也存在一系列问题。明确提出上海国资发展战略性新兴产业的战略目标、战略定位,正确选择上海国资战略性新兴产业的重点发展领域,系统论述上海国资引领战略性新兴产业发展的具体路径,提出六种发展模式和七大产业平台建设,以及上海国资引领战略性新兴产业发展的主要配套政策措施等。     

相对贫困的内涵、测度及其治理对策

贫困问题一直是困扰全球社会发展的重大议题,消除贫困是人类的共同使命。贫困分为绝对贫困和相对贫困。但是,相对贫困作为一种社会现象将长期存在,如何解决相对贫困问题是我们目前所面临的现实而又紧迫的课题。全面审视相对贫困的内涵和测度,从制度、资本和文化等方面讨论相对贫困的影响因素,从就业和社会保障等方面分析解决相对贫困的关键环节,提出推进国家现代化建设、深化经济体制改革、完善社会保障体系和加强教育体制改革,以此为解决相对贫困问题提供制度保障、基础支撑和智力支持。     

More than self-interest: Why different classes have different attitudes to income inequality

The connection between social class and political preferences is among the most well established in the social sciences. This association is typically taken as prima facie evidence of economic self-interest: Classes hold different attitudes, values, and party preferences because they have different economic interests. However, this assumption has rarely been tested empirically. In this article, we use survey data from 18 West European countries to examine why classes differ on a central aspect of political preferences, namely their views on the desirability of income inequality. We find that only a moderate proportion of differences between employee classes in support for redistribution can be accounted for by contemporary differences in resources and risks; differences in economic interests to some degree account for the anti-redistributive preferences of the professional middle classes compared with the working class. However, the preferences of the self-employed have a different explanation; autonomy is a better explanation of the right-wing preferences of the self-employed compared with the working class.     

In search of optimal management of the purchasing–marketing interface for new product development

Abstract

Growing dependence on suppliers for production and innovation, together with increasing consumer demands, has prompted recent discussions of the importance of purchasing–marketing functional integration. However, empirical studies are needed to understand how to manage this interface within a new product development (NPD) context. This study, grounded in information processing theory, proposes a new model to classify integrating mechanisms as either information-sharing forums or optimizers. This model further postulates the greater capacity of optimizer mechanisms for improving NPD commercial and financial performance, as well as speed. The empirical results, obtained from a sample of 141 firms, show that forums only improve NPD speed, whereas optimizer mechanisms evoke better commercial and financial performance. This study therefore highlights the potential of different integrating mechanisms and contributes to the on-going debate about the very concept of functional integration itself.     

“We don’t have to talk about how I feel”: emotionality as a tool of resistance in political discourse among Israeli students – a gendered socio-linguistic perspective

This article demonstrates how the gendered patriarchal mechanisms that exclude women from the political sphere are being produced, re-produced, and challenged in interpersonal political conversations by concentrating on the discursive mechanisms that construct the way young Israeli women and men talk about politics. The research is based on a yearlong intra-group dialog process. The group met for weekly sessions during two semesters, in which the group members discussed and expressed their thoughts and feelings regarding the Israeli–Palestinian conflict. Critical discourse analysis (CDA) demonstrated how the political space is being marked, defined and delimited through gendered discursive practices. We present the different roles participants take in the group, and in particular the different strategies women use in face of disciplinary discursive mechanisms. The process revealed that the development in the group discussion was strongly intertwined with the change in the positioning strategies of the female participants. In particular, we found that women deployed emotionality as a tool of resistance that challenges gender binaries and masculine dominance. Our conclusion highlights the importance of the daily interactions in creating, sustaining and changing the political discourse of a society in conflict.     

Predicting susceptibility to short-term stress with the defence mechanism test

The defence mechanism test (DMT) has been of considerable value in identifying individuals who are likely to show badly impaired judgement in times of sudden stress, yet it is little known outside Scandinavia. The DMT is described in this paper and its rationale fully discussed. There follows a critical review of studies in which DMT scores are related to performance in diverse (non-clinical) applied settings, the outcomes of which are generally most encouraging. A number of theoretical and practical problems are discussed, and suggestions are made for future research.     

在职教师培训有效性提升途径之一:学业汇报书

当前在职教师培训低效的一个关键原因在于管理维度的缺失,而学业汇报书恰是破解问题的新途径。学业汇报书是综合考虑了送培单位、培训组织、参培教师三者之间的关系而开展的一项提升培训有效性的创新途径,在关注培训的过程中促进教师主动、自觉地接受培训。同时,学业汇报书也承担了评价功能、媒介功能和档案功能,为在职教师有效培训提供了一种新的导向工具。在培训实践中,应从观念、制度、科学设计等几个方面推进学业汇报书的实施。