基于无交叉遗传算法的物流车辆路径问题研究

设计并实现了一种求解基本车辆路径问题的无交叉遗传算法,阐述了无交叉遗传算法求解物流车辆路径问题的关键技术,包括编码方案、初始种群生成方案、适应度函数、种群选择方案和变异操作等;并对比了使用目标函数倒数法和目标函数做差法构造适应度函数时的求解效果。实验结果表明,给出的无交叉遗传算法在求解车辆路径问题上具有良好的性能。     

关于小企业发挥工会组织作用的思考

文章阐述工会组织职能在企业中发挥作用的重要性,并对如何发挥工会组织作用进行了思考。     

Learning by supplying

Outsourcing in many industries has advanced beyond simple component supply to encompass manufacturing of entire products, often by suppliers in emerging economies. Understanding the evolving role and capabilities of suppliers in global supply chains is thus a pressing strategic issue for suppliers and customers alike. We analyze a novel panel dataset of supply relationships in the mobile telecommunications industry to answer the following questions: What factors contribute to a supplier's ability to build technological and market capabilities? Does it matter to whom the firm supplies? Is involvement in product design important, or is manufacturing the key to learning? Do the same types of relationships that support technological innovation also facilitate successful introduction of own‐brand products, or does this require a different “locus” of learning? Copyright © 2013 John Wiley & Sons, Ltd.     

Overcoming localization of knowledge — the role of professional service firms

The literature on organizational learning asserts that external learning is often limited geographically and technologically. We scrutinize to what extent organizations acquire external knowledge by accessing external knowledge repositories. We argue that professional service firms (PSFs) grant access to nonlocalized knowledge repositories and thereby not only facilitate external learning but also help to overcome localization. Focusing on patent law firms, we test our predictions using a unique dataset of 544,820 pairs of European patent applications. Analyzing patterns of knowledge flows captured in patent citations, we find that accessing a PSF's repository facilitates the acquisition of external knowledge. As the effect is more pronounced for knowledge that is distant to a focal organization, we conclude that having access to a knowledge repository compensates for localization disadvantages. Copyright © 2013 John Wiley & Sons, Ltd.     

Knowledge exchange and knowledge protection in interorganizational learning: The ambidexterity perspective

Are knowledge exchange and knowledge protection conflicting or complementary? Although facilitating knowledge exchange and protecting core proprietary knowledge are important in interorganizational learning, extant studies often regard them as conflicting activities. Few studies have discussed the mechanisms that can help firms achieve both. In this current study, we extend the concept of ambidexterity to the interorganizational learning context and suggest several mechanisms that can enhance knowledge exchange and knowledge protection simultaneously. We conducted a survey and the empirical results reveal that experience sharing and shared interpretation are positively associated with knowledge exchange success. Hostage arrangement enhances the level of knowledge protection, whereas reciprocal investment has no effect on knowledge protection. Furthermore, ambidexterity (the product term of knowledge exchange success and knowledge protection) significantly affects the performance of a firm. Finally, we discuss the implications of this research and offer suggestions for future research.     

The effects of strategic and market complementarity on acquisition performance: evidence from the U.S. commercial banking industry, 1989–2001

Most traditional research on mergers and acquisitions tends to focus on the role of similarity in explaining acquisition performance. While scholars have recently begun to examine acquisition complementarity, there is still little evidence concerning how complementarity influences acquisition performance. Further, previous research has not drawn the connections between related contexts and the potential benefits from complementarity. In this article, we move the study of acquisition complementarity forward by investigating the effects of strategic and market complementarity on acquisition performance in the context of related horizontal acquisitions. We also propose that two key attributes of acquirers—strategic focus and out‐of‐market acquisition experience—will moderate this relationship. We investigate our research questions in the context of all 2,204 acquisitions made by publicly traded U.S. commercial banks during the 12‐year period from 1989 to 2001. Our findings are generally supportive, suggesting complementarity is an important antecedent of acquisition performance, and raising important issues on the nature of acquisition research in general. Copyright © 2009 John Wiley & Sons, Ltd.     

个人抵押贷款违约的相关性因素——基于Copula模型的研究

运用国内商业银行积累的大量数据,统计得到银行个人客户住房抵押贷款多年度、不同信用等级、不同身份特征、分行业和分地区的违约情况,进行非线性的拟合分析,并采用Copula函数度量个人客户违约之间的相关性及厚尾特征。研究表明,房屋价格、客户性别以及受教育程度等与违约概率相关性比较低,在考察的样本区间内,这些因素不显著导致违约发生。另外,信用等级、收入结构和抵押担保剩余额度是影响个人违约决策的重要变量。所采用的模型在个人住房抵押贷款定价与风险管理中获得较好效果,银行可以根据违约状况的变动制定动态利率,随时准备弥补损失。     

团队氛围、董事会内部沟通与战略绩效

本文在理论分析的基础上提出研究假设,通过问卷调查的方式搜集数据,以47家企业董事会454份有效问卷为样本进行实证研究,结果表明,团队氛围中的团队信任对董事会内部沟通具有显著的正向影响;团队氛围中的情感冲突对董事会内部沟通具有显著的负向影响;董事会内部沟通对企业战略绩效中的团队学习力、决策有效性和战略一致性均具有显著的正向影响。研究不仅丰富了董事会团队过程理论,而且能够有效地指导公司治理实践。     

Some Properties of Past Entropy and their Applications

In the context of information theory, measure of uncertainty in past lifetime distribution has been proposed by Di Crescenzo and Longobardi (J Appl Probab 39:434–440, 2002). In this paper, we study some ordering and aging properties in terms of past entropy (based on past lifetime) and develop some characterization results. Some discrete distribution results are also addressed here.     

连锁经营管理专业“四段一体”式人才培养方案的探讨

我国连锁经营近几年发展非常迅速,对连锁经营管理的人才需求量日益剧增,高校为此开设了连锁经营管理专业,但是该专业对人才的培养还是处于摸索阶段。本文通过对连锁经营管理专业现状的分析,提出基于工学交替的四段一体式人才培养方案;从基础理论学习、职业技能训练、理论提升与拓展、毕业顶岗实习为阶段,对以市场需求为导向,采用专业基础课与专业课融于一体、理论与实践融于一体,实践强于理论,滚动式前进、螺旋式提高的分段渐进式教学体系进行分析,并提出了相关的建议。