双元领导对亲社会性沉默的影响

 亲社会性沉默可能是唯一能产生积极影响的沉默行为,当前对亲社会性沉默的前因研究尚显不足。激烈的竞争环境要求领导者具备双元能力,关于双元领导效应的研究主要集中在创新领域,而领导者结构化了员工的工作环境,将会影响员工的认知和行为,并且沉默行为主要由领导者造成。因此,探讨双元领导对亲社会性沉默的影响具有重要的理论和实践意义。        整合不确定管理理论和权力社会距离理论,以210名企业员工为样本,运用Spss 22和Mplus 7进行层次回归分析和验证性因子分析,探讨权力视角下双元领导对员工亲社会性沉默的影响,检验个人权力感知的中介作用以及中庸思维和权力距离导向的调节作用,揭示双元领导影响员工亲社会性沉默的内在机制。        研究结果表明,①双元领导正向影响员工亲社会性沉默,个人权力感知负向影响员工亲社会性沉默;②个人权力感知在双元领导与亲社会性沉默间起完全中介作用;③中庸思维负向调节双元领导与个人权力感知的关系;④权力距离导向正向调节个人权力感知与亲社会性沉默的关系。        实证检验双元领导对亲社会性沉默的影响,拓展了沉默行为相关研究;选取权力视角的双元领导为切入点,丰富了双元领导影响的研究;探讨亲社会性沉默的中介机制,从权力距离导向视角验证了个人权力感知对沉默行为的影响;通过引入中庸思维和权力距离导向作为调节变量,有效回应了管理学本土化研究倡议。研究结论对组织管理实践具有一定的指导意义。     

Online MapReduce processing on two identical parallel machines

In this work we investigate the online over-list MapReduce processing problem on two identical parallel machines, aiming at minimizing the makespan. Jobs are revealed one by one, and each job consists of one map task and one reduce task. The map task can be arbitrarily split and processed on both machines simultaneously, while the reduce task has to be processed on a single machine and it cannot be started unless the map task has been completed. We first show that the general case of the problem reduces to the classical two machine online scheduling model with an optimal competitive ratio of 3/2. For a special case where the map task is at least as long as the reduce task, we prove that no online algorithm can be less than 4/3-competitive. An optimal Greedy algorithm with a matching competitive ratio is proposed as well.     

‘It is not fair that you do not know we have problems’: Perceptual distance and the consequences of male leaders' conflict avoidance behaviours

This study investigates perceptual distance in terms of managers' conflict avoidance behaviour and its consequences for subordinates. We argue that perceptual distance, or the disagreement between a manager's perception and that of his or her subordinates of his or her conflict avoidance, is a genuine phenomenon. We examine the extent to which the perceptual distance regarding managers' avoidance behaviour influences a team's justice climate as well as the role of gender. The data collected from three multinational companies in China show that the perceptual distance of a male manager's avoidance behaviour exists and that it is associated with a negative justice climate within the team. These findings provide evidence of gender's effect on leadership and highlight the benefits of female leadership.     

大向砥砺,学术铿锵——《批评》引发的思考

针对《珍惜学术表达的自由——对〈出路与展望:直面中国管理实践〉的响应与批评》一文就《出路与展望:直面中国管理实践》提出的3处事实谬误和2处逻辑瑕疵做了回应,并就学术争鸣的方向以及直面中国管理实践要回答和解决的问题做了阐述,以期管理学界能够就直面中国管理实践这一主题展开科学和理性的学术争鸣。     

动态环境下企业持续成长的模型与构建

动态环境对企业的持续成长提出了挑战,企业如何持续成长的问题实质就是企业竞争优势如何持续的问题.在持续竞争优势的基础上提出了企业持续成长模型,深入分析了持续竞争优势的构建及其驱动因素,建立了竞争优势的动态管理模型,通过对主导优势和辅助优势进行选择、培育、更新和主动破坏等动态管理过程,获得企业在总体竞争优势上的持续发展.     

电力市场环境下发电商两市场最优风险投标策略研究

电力工业的市场化改革使电力企业成为市场的主体,并为发电商提供了多种市场选择.在这种新的市场环境下,发电商为为了获得较多的利润或降低市场风险,有必要对投标策略进行研究,并合理地决定在各个市场的投标电量.本文从投资组合的角度出发,以降低风险、保证投资成本的回收为目标,建立了求解最低风险、最大收益的多目标数学模型,利用投资学中的Markowitz模型对发电商的两市场最优风险投标策略进行了初步的探讨,在保证最低风险的情况下,使发电商两市场投标的期望收益最大,所得结论对发电商确定不同市场中的投标电量比例具有一定的参考价值.     

广义关键路线法的初步探索

利用关键路线法(简称CPM)网络计划技术对项目进度的分析完成后,由于某种原因,网络计划中一些工序需要对自己的开始和结束时间进行重新预计,事必对原有进度计划产生影响.针对该类问题,本文以关键路线法的基本方法为基础,提出关键路线法的拓展方法一和二,并综合这两个方面,给出了广义关键路线法,进而量化并分析了当任意多个工序需要重新预计各自开始和结束时间时,网络计划图中各节点和工序的时间参数以及总工期受影响的程度.算例验证了其正确性和可行性.     

基于时差分析的资源均衡问题探究

本文在已有时差概念分析的基础上,提出了三个新时差概念,给出了同一工序不同时差关系,提出了标值算法,算出了不同工序时差传递量。对资源均衡优化问题的初始方案进行研究,给出了随机时标网络图的绘制方式,使网络技术的应用更具灵活性和实用性。在时差传递性的基础上,进一步对有资源限制的资源均衡优化方案进行研究,提出了基于赋值算法的优化调整方式,最后通过算例对该调整方式进行了验证。     

出版业的产业化、集团化和现代化

针对我国出版业的现状及存在问题 ,笔者在大量调查研究的基础上 ,进行了深入浅出的分析 ,指出了存在问题的“九大症结” :重复出版、侵权盗版、非法出版、库存积压、质量低劣、书价虚高、政企不分、规模偏小和手段落后 ,提出了解决问题的建议 :出版业必须走“产业化、集团化和现代化”之路     

Costs and Benefits of Relational Contracting in China’s Transition

This paper is an attempt to account for the social foundations of China’s economic transition from central planning to a market economy which is a process of the completion and perfection of markets. In the early stage of China’s transition, relational contracts and interlinked arrangements constitute effective substitutes for missing and imperfect markets. However, relational contracting is becoming more costly as China’s economy develops. Its costs include, diseconomy of scale, undermining the development of arm-length transactions and formal institutions, among others. There are two possible future trajectories of China’s reform. One possibility is that the markets are so developed so that they are dis-embedded from sociopolitical powers. A second is that the markets are less developed and embedded in sociopolitical powers.