The source of global stock market risk: A viewpoint of economic policy uncertainty

This study explores the effect of economic policy uncertainty (EPU) in four countries or regions (China, Japan, Europe, and the United States) on the contagion risk of investments in the global stock market. The stock returns of 22 stock markets worldwide are analyzed to determine which region’s EPU exhibits the greatest effect on regional systematic risk in the global stock market and on volatility risk in individual stock markets. First, all of the samples, the markets of different continents and the spillover indices of the developed and emerging markets, are calculated to observe the dynamic correlation among these markets with the aim of quantifying regional systematic risk and further examining the contagion risk effect of EPU. The results indicate the following: EPU in China is the most influential, and its contagion risk spreads to different regional markets, except for Europe; the effect of EPU in the United States is inferior to that in China; EPU in Japan merely influences contagion risk in emerging markets; contagion risk in European markets is not influenced by the four EPU indices; and EPU in Europe is not influenced by contagion risk in the global stock market. However, according to the volatility risk in each market, the EPU in Europe and China respectively influence Asian countries and European countries the most. These results may be attributable to the extremely high trade dependence among these countries because the performance of international enterprises is mainly determined by the economic policies of their trading partners.     

试析德沃金对司法能动主义的批判——宪法解释视角

德沃金的法律解释学说是本世纪重要的法律学说,其宪法的道德解释是不同于司法能动主义支持者解释路径,通过对原意主义批判和宪法道德解释证成两个方面对司法能动主义进行批判。     

浅析如何系统地建立设计构想——以景观设计为例

任何设计在设计初期都需要构想,而构想需要系统性的建立。构想本身是一个系统,它包括立意、构思、表达技巧三个子系统。只有对这三个子系统拆分开来,对每一个子系统都进行深入的分析与了解后再将它们联系起来构成一个和谐统一的整体,才能建立一个系统的构想。从而才能创造出科学合理、适合城市发展并适应人们生活的景观。     

Who Convinces Whom? Parent and Child Perceptions of Children's Engagement in Parental Purchase Decisions

Do children overestimate their engagement in parental purchase decisions? A systematic analysis of the articles enabled us to create a database of 149 cases where child and parent perceptions of children's engagement in parental purchase decisions were measured. The findings proved that there is congruence between children's and parents' perception of a child's engagement in most cases. Children's overestimation of their engagement in a parental decision to purchase products is likely the exception rather than the rule. The cases characterized as overestimations are related to product category and type of measured domain. (Children tend to overestimate their engagement more when the measures track participation or influence rather than decision independence.)     

煤矿井巷工程质量控制的系统特性分析

我国煤矿的工程质量一直是社会关注的焦点,因为最近几年我国煤矿频频发生重大的安全事故,这就使得许多的矿井作业安全问题日益的暴露了出来。而且在煤矿开采过程中其本身就是一个高危作业,再加之许多的人为操作的失误,很容易造成重大的安全事故,所以安全作业系数根本就不好控制。文章主要从煤矿的安全生产和维护工程质量方面分析。     

中小企业实施电子商务的思路——以昆明宝成生物科技有限公司为例

本文以昆明宝成生物科技有限公司为例,为中小企业如何实施电子商务提出一种思路。     

Designing business models in circular economy: A systematic literature review and research agenda

The concept of circular economy is increasingly receiving attention in different domains, including strategic management, operations management, and technology management. It requires companies to design their business model (i.e., the value network, the relationships with the supply chain partners, and the value propositions towards customers) around a new concept of sustainable development that reduces consumption of natural resources and preserves the environment. However, extant research falls short in terms of explaining how companies design their business model according to the circular economy principles. Starting from this premise, the present paper provides a systematic review of the literature on the design of business models in the context of circular economy, aiming to offer an overview of the state of research and outline a promising research agenda.     

Past,present, and future of green product innovation

Firms are under constant pressure from various governmental and nongovernmental agencies to switch from conventional environmentally polluting products to green product innovations (GPIs). However, the relevant research pertaining to GPI has been published in a diverse set of journals that vary in their scope and readership and, therefore, the scholarly contribution to the topic remains largely fragmented. This study has utilised a systematic literature review approach to examine the literary corpus on GPI to paint a holistic picture of its different aspects. The content and thematic analysis of 85 studies resulted in the extraction of seven key research themes: organisational capabilities, organisational learning, institutional pressures, barriers, structural changes, benefits of GPI, and methodological choices. This study's findings further highlight the various gaps in the GPI literature and raise some research questions that warrant scholarly investigation in the future. Likewise, our study has important implications for practitioners who are likely to benefit from a holistic understanding of the different aspects of GPI. Similarly, policymakers can use this study's findings to introduce policy interventions, especially in countries where GPI adoption is low.     

Optimizing suicide and trespass prevention on railways: a problem-solving model from the RESTRAIL project

Suicides and trespassing accidents result in more than 3800 fatalities in Europe, representing 88% of all fatalities occurring within the EU railway system. This paper presents a problem-solving model, which consists of a multistep approach structuring the analysis of a suicide or trespass-related problem on the railways. First, we present the method used to design, evaluate and improve the problem-solving model. Then we describe the model in detail: it comprises six steps with several subsequent actions, and each action is approached through a checklist of prompting questions and possible answers. At the end, we discuss the added value of this model for decision makers and its usability in the selection of optimal prevention measures.