线上线下融合模式下考虑战略顾客行为的供应链协调研究

在移动电商高速发展和移动支付日益便捷的时代,线上线下融合商务模式正日益成为传统零售、电子商务甚至快递物流企业转型升级的重要方向,影响着供应链运营管理及其优化决策。线上线下融合模式下的战略顾客行为不同于传统模式,其对于供应链运营管理及其优化决策的影响也不同于传统模式。基于O2O运作模式特征,运用战略顾客行为理论、供应链优化与协调理论,本文分别构建了"线上下单+线下体验+线下支付+自行提货"O2O模式1、"线上浏览+线下体验+线上购买+线下配送"O2O模式2、纯线下模式和纯线上模式下考虑战略顾客行为的供应链集中决策模型和契约协调模型,并进行了相应的数值分析,在此基础上,提出了相应的管理启示。研究结果表明：（1）无论是"线上下单+线下体验+线下支付+自行提货"O2O模式1还是"线上浏览+线下体验+线上购买+线下配送"O2O模式2,收益分享契约机制可以有效地实现战略顾客行为下的供应链协调。（2）对比两种O2O模式和两种非O2O模式,O2O模式1和O2O模式2能给供应链及其成员带来更多的利润,而纯线上模式和纯线下模式能给战略顾客带来更高的效用。（3）O2O模式下,制定较高的自提补贴和较低的折扣价格,有利于提高供应链及其成员的运营绩效。（4）O2O模式下,增强产品及其相关服务的实际体验效用,有利于提高供应链整体及其成员的运营绩效,有利于提高战略顾客的净效用。     

Relation between the skew-rank of an oriented graph and the independence number of its underlying graph

An oriented graph \(G^\sigma \) is a digraph without loops or multiple arcs whose underlying graph is G. Let \(S\left( G^\sigma \right) \) be the skew-adjacency matrix of \(G^\sigma \) and \(\alpha (G)\) be the independence number of G. The rank of \(S(G^\sigma )\) is called the skew-rank of \(G^\sigma \), denoted by \(sr(G^\sigma )\). Wong et al. (Eur J Comb 54:76–86, 2016) studied the relationship between the skew-rank of an oriented graph and the rank of its underlying graph. In this paper, the correlation involving the skew-rank, the independence number, and some other parameters are considered. First we show that \(sr(G^\sigma )+2\alpha (G)\geqslant 2|V_G|-2d(G)\), where \(|V_G|\) is the order of G and d(G) is the dimension of cycle space of G. We also obtain sharp lower bounds for \(sr(G^\sigma )+\alpha (G),\, sr(G^\sigma )-\alpha (G)\), \(sr(G^\sigma )/\alpha (G)\) and characterize all corresponding extremal graphs.     

异质性技术视角下中国高技术制造业创新效率研究

目前,学术界对选取何种风险调整贴现率期限结构还存在争议,导致对同类投资项目得 出不同的管理指引意见． 针对这一争议,本文通过划分资本产出方式, 寻找影响贴现率结构的 主要因素． 研究表明,不确定的宏观经济产出和项目非系统风险共同影响风险溢价系数, 同时 风险溢价系数决定贴现率期限结构． 其中,当风险溢价系数大于某确定阈值, 贴现率随时间递 增; 其余情况表现为递减．     

自媒体时代“网络话语权”的二元结构解析与规制

自媒体的出现修正了媒体资源分布失衡的弊端,促使个体身份发生角色转变,进而使话语权的行使形成了“话语权利”与“话语权力”两个维度.前者是言论自由在网络空间的体现,后者是个人言论衍生为媒体式表达后形成的超个体权力.“话语权利”的行使应当受国家对言论自由所设的界限限制,“话语权力”的赋予则使自媒体成为国家新闻管理体制下的“准媒体”,其作为互联网新闻信息服务提供者,应当受到约束与规制.     

经典剧作的对外传播与中国国家形象建构

经典剧作是我国优秀传统文化的代表,是中国人民智慧的结晶,也是中华民族优良品德的集中体现。做好经典剧作的对外传播,有利于将客观、真实的中国介绍给世界,消除个别国家对我国国家形象的误解,对于我国的社会主义现代化进程和在国际社会树立良好的大国形象,具有积极的推动作用。     

Divorce Chinese Style

This study investigated divorce during China's social and economic transformation period from 1970 to 2012. Specifically, the study examined the trend development of divorce and demonstrated how marriage formation type and individual socioeconomic characteristics were associated with the likelihood of divorce across time. Event‐history analysis was applied to longitudinal data from the China Family Panel Studies (2010–2012 waves). The results showed a threefold increase in divorce from the pre‐1990s to the 1990s. Surprisingly, the trend shifted to a plateau toward the 2000s. When cohabitation was in its rapidly diffusing stage in the 1990s, individuals who cohabited prior to marriage had a substantially higher likelihood of divorce. As cohabitation became increasingly common in the 2000s, its effect on divorce weakened. The role of socioeconomic characteristics in divorce also varied across time. This study enriches the knowledge of family dynamics in contemporary Chinese society.     

Parental divorce, sibship size, family resources, and children’s academic performance

Using data from 19,839 adolescents from the National Education Longitudinal Study, this study investigates whether the effects of parental divorce on adolescents’ academic test performance vary by sibship size. Analyses show that the negative effect of divorce on adolescent performance attenuates as sibship size increases. On the other side of the interaction, the inverse relationship between sibship size and test performance is weaker in disrupted than in two-biological-parent families. Trends of such interactions are evident when sibship size is examined either as a continuous or a categorical measure. Finally, the observed interactions on adolescents’ academic performance are completely explained by variations in parental financial, human, cultural, and social resources. In sum, this study underlines the importance of treating the effect of parental divorce as a variable and calls for more research to identify child and family features that may change the magnitude of such an effect.     

他者的反叛——林语堂与萨义德对超越西方中心主义不同途径的选择

林语堂与萨义德在反对西方中心主义的立场上是一致的,他们对西方中心主义的分析诊断却有所不同。尽管二人都看到了西方中心主义的根源在本质主义,但两个人对救治方案的选择又有不同。林语堂的方案是对本质主义进行改造,重新讨论人之为人的价值标准。林语堂选用了孟子的标准,就是四心。萨义德选择的方案是解构式的,批判了本质主义的民族身份观念,而倡导建立对话性的、多变的民族身份观念。他对人文主义进行了重新界定,认为人文主义不是恪守着那个精英的标准,拒绝新事物,拒绝其他文化,而是不断与其他文化交往对话的过程,不断创新的过程。他们的设想对于我们今天解决东西方关系中的不平等和扭曲、偏见等问题仍有重要启示。我们面对的是一个多民族参与对话的动态过程,一个谈判、协商的过程。它接近于萨义德所说的人文主义,但在价值标准和价值取向层面上,它接近于林语堂对"人性"的追问。     

儒家“中庸之道”生态伦理原则的现代诠释

中国文化传统中的中庸伦理思想,包含着非常丰富的生态伦理思想,其主要特征在于推崇中和,中和的天道观是其中庸伦理思想的出发点乃至归宿。人的实践活动要符合自然规律的思想反映了极其浓厚的生态伦理的情怀。本文拟就中国传统儒家"中庸"伦理思想进行分析,认为中庸伦理存在着三大生态伦理原则:即"天人合一"的生态伦理根本原则;"应时而中"的生态伦理应用原则;"惜生及民、惜人及物"的普遍关怀的生态伦理的情感原则。