国家自然科学基金委员会管理科学部重要期刊异质知识交流能力研究

将不同期刊刊载知识视为异质信息,若一种期刊的个体引文网络中存在联系较为紧密的小团体,则小团体刊载知识被视为该刊的异质信息源.以国家自然科学基金委员会管理科学部认定的30种重要期刊在1980～2009年间形成的互引网络为分析对象,运用社会网络分析工具从异质知识传播、吸收及流动3个角度探讨重要期刊个体引文网络的结构洞情况.发现《管理世界》等期刊跨越较多的结构洞,比较容易与其他重要期刊进行异质知识交流,交流途径非常高效、稳健,且异质知识交流数量和质量受某一种期刊的影响很小.     

餐饮业顾客满意度指数模型的实证研究 ——基于大学饮食服务中心的实地调研

全国性的顾客满意度指数测评工作已经获得各国普遍的关注,本文基于ACSI和中国服务业顾客满意度模型构建了我国餐饮行业顾客满意度概念模型,并根据湖北宜昌市多所大学饮食服务中心的问卷调查数据进行了结构方程模型分析、检验,修正初始概念模型,得到了有效的餐饮业顾客满意度概念模型,进而在分析餐饮管理与服务现存问题的基础上,提出了改进的措施,为创造良好的餐饮业管理质量提供建议。     

高知大龄未婚女性的婚恋问题浅析

在男女性别比居高不下。男性人口远远高于女性人口的当今中国,却出现了高知大龄未婚女性婚恋难问题,这一奇特的社会现象引起人们广泛的关注和热议。本文认为高知大龄未婚女性婚恋问题主要源于“结构性剩余”,在对高知大龄未婚女性婚恋难问题已有的多角度理论研究回顾的基础上．主要从人口与经济的视角对高知大龄未婚女性“结构性剩余”现象的原因进行深入发掘。最后提出一些解决问题的举措。     

论经济法的中观归属

法律体系和部门法之间存在一个中观层次,并且随着社会的发展,社会利益观念的建立和政策性平衡的产生,中观结构要素中除了公法和私法之外又产生了社会法.公法、私法、社会法在调整对象、调整方式、法律本位、法律价值等方面存在着区别.经济法以社会利益为调整对象,以政策性平衡为调整方式,以社会本位为法律本位,以维护社会经济总体效益为法律价值.上述四个特征与社会法相一致,因此经济法在中观层次上归属于社会法.     

Are there causal relationships between the dimensions of the Maslach Burnout Inventory? A review and two longitudinal tests

Arising from interest concerning the possibility of causal relationships among the three components of the Maslach Burnout Inventory, several process models have been proposed for the development of burnout. The present paper first reviews the evidence in favour of the three most influential of these (Leiter and Maslach's model (1988); Golembiewski, Boudreau, Munzenrider, & Luo's (1996) phase model; and Lee and Ashforth's model (1993)). These three models, and our own model (which integrates of two of them, and includes feedback effects of depersonalization on emotional exhaustion) are then compared with each other using structural equation modelling, drawing on longitudinal data from two Dutch samples (total N=1185). The review revealed that none of the seven previous studies on this issue provided any convincing support for any particular causal order proposed so far. In contrast, our own study showed that high levels of exhaustion were associated with high levels of depersonalization over time across both samples. Further, higher levels of depersonalization led to higher levels of emotional exhaustion and lower levels of personal accomplishment. To our knowledge, the present research is the first to provide reliable longitudinal evidence for the conceptualization of burnout as a developmental process, although the effects are not large enough to be of practical use in the recognition of burnout.     

中国粮食增产的主要因素贡献分解与实证估算

已有测算中国粮食增产要素贡献率的方法存在虚增或低估某要素贡献率的缺陷,文章通过改进粮食增产贡献率测算方法实证估计了2003—2016年期间单产、播种面积和结构调整对中国粮食增产的贡献。结果表明,中国粮食实现“十二连增”的巨大成就主要是单产增长贡献,年均贡献率50%以上,播种面积和作物内部结构调整也是不可忽视的重要力量,年均贡献率分别为30%与10%以上。然而,未来中国粮食增产依靠播种面积扩大和结构调整的空间变窄,需要探索新的增产路径。     

企业内员工知识共享的实证研究

将知识特性以及员工知识共享的意愿作为分析影响员工知识共享的2个因素,以此建立一个概念框架;运用结构方程模型方法,结合对115家中国企业所作的调查研究数据,从实证的角度研究这些因素对企业内部员工知识共享的影响.研究结果表明,知识的隐含性和分散性与企业员工知识共享之间存在显著负相关关系,员工对未来合作的预期、知识的价值与企业员工知识共享之间存在显著正相关的关系.最后,讨论了研究结果的管理含义及进一步研究方向.     

Ultrastructural elliptical models

Dolby's (1976) ultrastructural model with no replications is investigated within the class of the elliptical distributions. General asymptotic results are given for the sample covariance matrix S in the presence of incidental parameters. These results are used to study the asymptotic behaviour of some estimators of the slope parameter, unifying and extending existing results in the literature. In particular, under some regularity conditions they are shown to be consistent and asymptotically normal. For the special case of the structural model, some asymptotic relative efficiencies are also reported which show that generalized least squares and the method of moment estimators can be highly inefficient under nonnormality.     

Pitfalls in Drawing Policy Conclusions from Retrospective Survey Data: The Case of Advertising and Underage Smoking

Measuring the impact of potentially controllable factors on the willingness of youth to undertake health risks is important to informed public health policy decisions. Typically the only data linking these factors with risk-taking behavior are retrospective. This study demonstrates, by means of a recent example, that there can be serious pitfalls in using even longitudinal retrospective data to draw conclusions about causal relations between potentially controllable factors and risk-taking behavior.