Leader–member exchange and guanxi are not the same: differential impact of dyadic relationships on fit perceptions,helping behavior,and turnover intention

Extant literature on person–environment fit has underlined the positive impact of leader–member exchange (LMX) on person–supervisor (PS) fit. We challenge this assumption and propose that LMX, which captures the working relationship between employees and their managers, is more strongly associated with person–organization (PO) fit, not PS fit. We further propose that the personal aspect of the relationship between employees and their managers, namely supervisor–subordinate guanxi, is more strongly associated with PS fit than LMX. Finally, we theorize that LMX and supervisor–subordinate guanxi will be associated with turnover intention and helping behavior targeting the supervisor, respectively, through their differential impact on PO and PS fit. Data collected from 267 leader–member dyads in 17 companies in China using a two-wave procedure supported our hypotheses. These results have implications for theories on the multi-dimensional nature of the person–environment fit as well as research differentiating LMX and supervisor–subordinate guanxi.     

钢管拱施工安全风险管控

崔家营汉江特大桥是汉十高铁的关键控制性工程,跨汉江航道通航孔采用(135+2×300+135)m连续刚构拱桥,是世界上首座时速350公里、跨度300米连续钢构拱桥,全桥钢管拱6800吨,共计112个吊装节段,主拱钢管拱距汉江水面高度最高达105m,最大吊重达110吨,因工期紧,钢管拱4跨同时施工,用于拼装、提升拱肋大型...     

油料装备产品族分类系统研究

油料装备分类是进行产品族分析和管理的基础,通过分析产品族中不同产品结构模块相似性评价指标,用集合与属性之间的关联关系,实现集合与属性相似性评估之间的映射,通过建立各相关属性的相似度矩阵,获取了产品综合相似度评价矩阵,通过聚类分析获得不同阈值下的分类结果,最后,对油料装备进行实例分析。     

浅谈自动喷水灭火系统

自动喷水灭火系统同时具备了防火、控火、灭火的功能,是国际上公认的最为有效的自动灭火设施,是现代建筑防火技术的重要组成部分。文章简单对自动喷水灭火系统进行分析,对设计中常见问题进行讨论。     

基于供应链的营销物流研究

物流与营销的关系密不可分,而营销物流更是企业降低成本、增加收益的重要途径.在供应链环境中探讨了营销物流,同时指出了营销物流供应链的特点.最后以供应链中的制造商、批发商、零售商为切入点,对直供营销物流、零售支持型营销物流、产销联盟营销物流模式分别进行了分析.     

伊犁人民水电站工程设计经验谈

人民水电站在渠道设计改建中充分利用现有条件,做到设计总体布置合理、机组选型先进、电气主接线合适,既节省了资金,又使电站运行安全可靠,为在类似灌溉渠道设计改建中,充分利用水力这种清洁能源发电总结了经验。     

上级家长式领导风格影响下属组织公正感的机制

本文用两个研究探讨了上级家长式领导风格影响下属组织公正感的机制。研究一以264名MBA学员为被试,采用2×2×2完全随机设计的模拟情境实验,研究了家长式领导对下属组织公正感的影响,结果表明:家长式领导能够影响下属的程序公正感、领导公正和领导解释,但对下属分配公正感没有直接影响。研究二在分析已有研究的基础上,提出了家长式领导影响分配公正感的中介模型,并基于428名企事单位员工的调查数据对假设模型进行了验证,结果表明:家长式领导通过程序公正感、领导公正、领导解释的中介作用影响下属的分配公正感,同时仁慈领导对下属的分配公正感有直接影响。最后,对研究的理论和实践意义作了探讨,并提出了未来的研究方向。     

“一带一路”沿线国家与中国的贸易发展状况研究

研究目标：探索构建灯光数据对贸易研究的可行性。研究方法：运用1995~2012年“一带一路”沿线国家的面板数据,采用普通最小二乘法、泊松伪最大似然估计方法及工具变量法,以灯光数据作为GDP的替代量,通过传统引力模型搭建桥梁。研究发现：地理距离、边界及区域协定对中国与“一带一路”沿线国家之间贸易的显著影响表明灯光数据对贸易研究的有效性;同时,对1996~2012年贸易趋势的预测与实际贸易的对比结果显示,以灯光数据预测的“一带一路”贸易趋势与实际贸易基本吻合。研究创新：首次将夜间灯光数据应用于引力模型研究,对中国与“一带一路”沿线国家的贸易发展状况进行分析。研究价值：开拓夜间灯光数据研究贸易的先河,并结合引力模型的最新发展及微观基础思考拓展性的相关研究。     

How perceived empowerment HR practices influence work engagement in social enterprises – a moderated mediation model

Abstract

Drawing insights from the group engagement model and self-determination theory, our research explored the role of perceived empowerment human resource (HR) practices in the hybrid organizational form of social enterprise in China. Based on two studies, this paper developed and examined a moderated mediation model, linking perceived empowerment HR practices, identification motivation, work engagement, and authority work value. Specifically, in Study 1 we found perceived empowerment HR practices increased employees’ work engagement through enhancing employees’ identification motivation. In Study 2, we adopted a two-wave design to duplicate and extend this mediation model. A moderator, employees’ authority work value, was found to weaken both the mediation relationship, and the positive relationship between perceived empowerment HR practices and identification motivation. This study broadens the understanding of what social enterprises look like in alternative contexts, while providing an opportunity to explore how a HRM mechanism and its boundary condition function in large social enterprises in China.     

证券投资风险预测的E-Bayes估计

本文给出了E-Bayes方法,以上海证券个股五粮液52个连续交易日的收盘价格为例,建立数学模型进行分析和预测,预测结果与市场实际值相当吻合。与灰色系统理论中的GM（1,1）预测模型相比,本文提出的方法预测的精度更高,计算量小。不仅适用于经济系统的分析与预测,也适用于其它系统的分析与预测。