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1.
Testing the impact of profitable investment strategies is often hampered by the practical difficulties of determining who knew what, and when. This study examines the impact of the publication of a profitable wagering strategy on the Major League Baseball wagering market. While standard measures of market efficiency characterized the Major League Baseball win–loss moneyline market to be efficient, previous works shows that wagering on underdogs early in the season can generate persistent profits. Though the overall efficiency of the baseball wagering market remained after publication, these profitable opportunities dissipated. Bettor behaviour is found to play varying roles across different wagering strategies; up to half of the drop in returns can be attributed to wagering market participant behaviour.  相似文献   

2.
    
An econometric analysis of the 2015 Major League Baseball season is conducted with respect to regular season victories. Results obtained confirm some, but not all, results reported in prior research. The importance of solid team pitching and offense is underscored. Similar to 2014, team defence did not vary sufficiently to play a statistically significant role in team victory differences. Outcomes for total payrolls and salary disparities differ substantially from prior seasons. History may serve as a guide to what occurs on the field, but it does not always replicate the patterns of bygone years. Parameter heterogeneity is substantial and argues against pooling sample data from season to season. From a strict econometric perspective, the results obtained indicate that panel methods should not be utilized to analyse wins data for Major League Baseball. Ultimately, 2015 represents another departure from the standard baseball norm.  相似文献   

3.
高管团队是企业战略制定的核心层。高管团队的良好运作是企业和谐发展的关键。团队信任和团队冲突是反映团队运作过程的两个重要要素,也是影响组织绩效的主要前置因素。以某大型国有企业集团为对象,研究高层管理团队的信任、冲突和组织绩效的关系。研究表明,高管团队的工作导向信任、关系导向信任均能够显著改善组织绩效;团队认知冲突和情绪冲突均对组织绩效产生负向作用,此结论同时也验证了冲突存在文化差异的观点;工作导向信任能够通过降低认知冲突提高组织绩效,认知冲突在工作导向信任对组织绩效的作用过程中充当了部分中介作用。  相似文献   

4.
利用对45个虚拟团队的调研数据,通过相关分析和回归分析,探讨了虚拟团队的虚拟性对交互记忆系统的影响、交互记忆系统的各维度对团队绩效的影响及任务复杂性对两者间关系的调节作用。研究结果显示:虚拟团队的虚拟性和交互记忆系统之间存在相关关系;虚拟团队交互记忆系统的3个维度(专长度、可信度和协调度)对团队绩效具有较强的预测作用;任务复杂性对交互记忆系统与团队绩效的关系产生负向调节作用。  相似文献   

5.
张钢  乐晨  吕洁 《技术经济》2012,31(5):12-17,38
以创业大赛团队为样本,探讨了如何通过管理团队中成员的时间个性异质性以最大化团队绩效。对36个团队进行的实证分析结果显示:团队成员的时间个性异质性与团队整体绩效显著正相关;作为团队过程变量的任务冲突与团队绩效正相关,且起到中介作用。  相似文献   

6.
界定了包容型领导风格的内涵,指出了包容型领导风格由5个维度体现,即领导者公平对待成员并与员工实现共赢、领导者鼓励跨部门和跨学科的合作交流、领导者培养并认可团队成员、领导者包容并充分发挥团队成员的优势、领导者包容团队成员的失败并给予指导。然后,利用针对浙江高校科研团队的调研数据,实证分析了包容型领导风格对高校科研团队绩效的影响。结果显示:包容型领导风格与高校科研团队绩效显著正相关;包容型领导风格的5个维度对高校科研团队绩效具有不同影响,其中领导者公平对待成员并与员工实现共赢、领导者包容并充分发挥团队成员的优势两个维度对团队绩效的影响尤其突出。  相似文献   

7.
对领军人物和企业创新绩效的概念进行了界定,提出了研发团队领军人物的能力特征,构建了研发团队运作过程模型和研发过程模型。依据研发团队领军人物能力特征,从研发团队运作过程和企业研发过程两个角度阐释了研发团队领军人物对企业创新绩效的影响机理。  相似文献   

8.
张钢  熊立 《技术经济》2008,27(5):26-33
交互记忆系统可用于解释团队任务完成过程中的知识处理机制。本文以浙江省杭州地区的41个工作团队为样本,研究了交互记忆系统与团队任务、成员异质性、团队绩效之间的关系,在一定程度上弥补了以往实验室研究的不足。除了证实Lewis量表中有两个题目不理想外,还证实了:交互记忆系统与任务的常规程度、成员的专长异质性、团队绩效有显著相关性,而与成员的_般异质性(人口统计学特征)无显著相关性。本文采用r。指标检验组内一致性,为以后在组织研究中处理多层面问题提供了一种可行的解决办法。  相似文献   

9.
The football club market is changing fast in the social media era. In this global market, clubs must maintain or improve fans’ attendance at the stadium; simultaneously, they need, more than ever, to take care of social media. The aim of this article is to test and discuss a comprehensive approach to analysing the performance of football clubs regarding their multiplicity of objectives. We analyse the efficiency of English Premier League (EPL) clubs during three seasons (2012/13–2014/15). The methodologies employed are data envelopment analysis (DEA) and a bootstrapped DEA model. The input is the market value of the squad, and the outputs are sports results, total revenue, the ratio of stadium utilization during the season and an index of social media impact. The results are robust to alternative estimation methods and indicate that EPL clubs still have a margin for improving their overall efficiency, mainly the medium clubs. The analysis of football clubs’ performance with the proposed comprehensive approach provides a useful tool to help managers with evaluation and feedback considering the actual context of the market. The approach brings closer the opportunity to design appropriate strategies to improve clubs’ efficiency as well as competition policies.  相似文献   

10.
陈睿  井润田 《技术经济》2012,(12):13-21
通过构建被调节的中介效应模型,探讨了团队异质性对团队成员创新绩效的影响机制,考察了团队层面的创新氛围的跨层次中介效应以及领导观点采择能力对此中介效应的调节作用。结果显示:在领导观点采择能力较高的R&D团队中,专业差异、团队任期差异通过创新氛围的中介作用对成员创新绩效产生较强的正向影响,年龄差异的负向影响较强,团队异质性的影响非常有限;团队异质性对成员主观绩效的影响大于对客观绩效的影响。  相似文献   

11.
Teamwork is gaining increasing attention in a broader management research. In addition to previous research on the relationship between team structure and innovation performance, this study draws from an interesting experience-based theory advanced by Kelley and Littman (2005), which examines teams from design thinking perspective, and tests its contributions and effects on team's innovation performance. According to Kelley and Littman any team should include the following team roles: The anthropologist, the experimenter, the cross-pollinator, the hurdler, the collaborator, the director, the experience architect, the set designer, the storyteller, and the caregiver. We develop theoretical logics to explain how team structure that includes these key team roles and competences lead to a better innovation performance, and propose pertinent hypotheses. Experimental-empirical research and quantitative analysis were used in the study. The study conducted multiple experiments on three samples: a group of foreign entrepreneurship students, a group of technical students, and an additional group of randomly selected individuals, aged between 20 and 58, with diverse backgrounds. A special approach was implemented and a new instrument was developed to evaluate individuals in teams. While the results show that team that possess the major competences proposed by Kelley and Littman are more innovative, preliminary results also show that not all team roles are equally important. Moreover, team roles should be allocated equally among members for better collaboration, member satisfaction, and quick response, and within one team, one prevailing personality is optimal in terms of innovativeness. We discuss the implications of our findings for future research and managerial practice.  相似文献   

12.
高层管理团队核心成员薪酬差距与企业绩效的关系   总被引:14,自引:0,他引:14  
竞赛理论和行为理论关于薪酬差距对组织绩效影响关系的认识有很大差别.形成了相互竞争的观点。本文基于这两种理论得出了高层管理团队核心成员间薪酬差距与企业绩效之间的关系,以及团队协作需要对于两者关系的调节效应的竞争性假说,并利用我国上市公司近4年的相关数据进行了实证研究。结果发现,薪酬差距和企业绩效的关系符合行为理论的预期,而团队协作需要的调节效应也部分支持行为理论的预期。  相似文献   

13.
14.
创业团队内冲突、企业家精神与公司绩效关系   总被引:2,自引:0,他引:2  
不但初创小企业采用团队创业的行为比较普遍,而且即使是在大公司中,公司高管层也越来越多地倾向于采用团队决策模式,以应对日趋动态化和复杂化的外部竞争环境。研究结果显示,创业团队内情感冲突与创业团队企业家精神、公司绩效显著负相关;创业团队内认知冲突与创业团队企业家精神、公司绩效显著正相关。与此同时,创业团队企业家精神作为中介变量,在冲突与公司绩效间起一定的调节效应。  相似文献   

15.
    
This article considers the change in revenue sharing in Major League Baseball that occurred prior to the 2007 season and its effects on parity via its effects on marginal revenues. Based on the results from an empirical specification for team revenue, we find evidence that the reduction in revenue sharing increased marginal revenue by more for large market clubs than for small market clubs, despite holding constant other differences in how small and large market club revenues are determined. The upshot of this result is that the modest reduction in revenue sharing could have worsened league parity by 11 to 17 points in winning percentage between small and large market clubs, although other factors affect parity as well. The well-known invariance principle in the economics of sport literature does not appear to hold; however, the current consensus of theoretical models is not confirmed.  相似文献   

16.
以“挑战杯”团队为例,在分析团队结构特点和绩效衡量指标的基础上,以Ghoshal对社会资本的定义为架构,界定了大学生创新团队的内部社会资本;以团队与外部实体的联系为架构,界定了团队的外部社会资本;最后分别探讨了大学生创新团队的内外部社会资本与绩效的关系。  相似文献   

17.
基于创造力理论,对团队创造力进行了向例与变例、过程与结果的二维度、两阶段划分,分析了其对主流、新流创新绩效的作用机理,并提出研究假设。利用来自278份有效调研问卷的数据进行多元回归分析和结构方程模型分析。结果显示:向例团队创造力两阶段均正向促进主流创新绩效,结果阶段抑制新流创新绩效;变例团队创造力两阶段均正向促进新流创新绩效,结果阶段抑制主流创新绩效;向例(变例)团队创造力创造结果阶段在创造过程阶段与主流(新流)创新绩效之间起部分中介作用,向例(变例)团队创造力创造结果阶段在创造过程阶段与新流(主流)创新绩效之间起完全中介作用。  相似文献   

18.
从社会网络理论的角度出发,利用2013年143家IT通信行业企业的相关数据,分析了高管团队的社会资本对技术多元化与企业创新绩效间关系的调节作用。研究结果显示:技术多元化广度和深度对企业创新绩效有显著的正向影响;高管团队的社会资本对技术多元化和企业创新绩效的关系起一定的调节作用,其中高管团队的横向社会资本对技术多元化广度与企业创新绩效的关系起正向调节作用,高管团队的纵向社会资本对技术多元化广度与企业创新绩效间关系的调节作用不显著,高管团队的横向社会资本和纵向社会资本对技术多元化深度与企业创新绩效的关系均起负向调节作用。  相似文献   

19.
在对高管团队人口统计学特征指标和企业绩效指标进行因子分析的基础上,结合高层梯队理论和代理理论,研究了高管团队不同层次的属性(自然属性、能力属性和治理属性)与企业不同层次的绩效(成长绩效、增长绩效和经营绩效)的关系,并进一步分析了CEO的社会资本在两者关系中所起的调节作用。研究结论如下:中国上市公司的绩效与高管团队的管理素质有关;CEO的社会资本削弱了高管团队的管理素质与企业绩效的正向关系;中国现实环境中存在的"关系"不利于中国企业整体的成长。提出:完善市场经济体制、加强法制建设、厘清政府与市场的关系对于企业健康成长具有重要意义。  相似文献   

20.
如何提高科研团队创新水平和团队绩效是高校目前面临的重要课题,本文以高校科研团队为研究对象,首先回顾了距离因素和团队绩效的相关文献,并从情感距离、知识距离、空间距离和权力距离四个方面对影响团队绩效的因素做了详细分析,构建了高校科研团队绩效影响因素模型.然后通过大量的问卷调查,并利用经典统计分析和结构方程模型(SEM)对样本数据进行处理,对每个因素与团队绩效的作用方式、影响机制进行了实证研究.此外,针对研究结论作出了相应的分析并对高校科研团队管理提出了相应的改善建议,为今后高校科研团队的建设提供了科学的理论依据  相似文献   

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