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991.
We introduce an extension of the Mas-Colell bargaining set and construct, by an elaboration on a voting paradox, a superadditive four-person non-transferable utility game whose extended bargaining set is empty. It is shown that this extension constitutes an upper hemicontinuous correspondence. We conclude that the Mas-Colell bargaining set of a non-levelled superadditive NTU game may be empty. 相似文献
992.
Hyung Joon Yoon Ji Hoon Song Wesley E. Donahue Katheryn K. Woodley 《Journal of Leadership Studies》2010,4(3):39-50
This article reports psychometric evaluation of the Penn State Leadership Competency Inventory (LCI). The 32‐item LCI was validated on a sample of 323 managers in the health care industry. Preliminary validity and reliability evidence of the LCI was established through exploratory factor analysis (EFA), item‐total correlations, Cronbach's alpha coefficients, and confirmatory factor analysis (CFA). The four‐factor leadership competency scale, comprising supervisory and managerial competencies, organizational leadership, personal mastery, and resource leadership, accounted for 58% of variance. According to CFA results, the model fit of the four latent factors of the LCI was confirmed to be appropriate. Cross‐validation with other populations is needed to confirm the factor structure. Limitations and further research recommendations are discussed. 相似文献
993.
Since measurement errors have strong effects in all relationships (statistical or otherwise) studied, there is an increasing interest in the data quality, which is the major justification for this research. This paper aims to present a new measurement procedure, the letter scale, which avoids many of the problems connected with the response modalities traditionally used in attitudinal research, especially the ordinal categorical scales. This paper analyzes the error composition of the scores obtained with this new measurement procedure. The validity of the procedure is also analyzed and the observed variance is assessed to determine which part of the observed variance is “valid”, which part is random error (attenuating relationships) and which is correlated error (magnifying relationships). Structural equation models will be used to provide estimates of the measurement quality: (i) Reliability, (ii) Construct validity, method effect and residual variance. In addition, this letter scale is evaluated under another different perspective, Information Theory measures are also used to assess the amount of information transmitted. The relative merits of this new measurement procedure as opposed to other common response modalities will be discussed in both cases. 相似文献
994.
鄂嘉薇 《中小企业管理与科技》2021,(10):195-196
合理控制工程成本,对于建筑施工企业意义重大。论文从BIM技术在建筑工程施工成本全过程管理中应用的实际效果入手,对BIM技术的信息完备性、信息关联性、信息一致性、可视化、模拟性以及可出图性等应用优势进行分析,结合BIM技术在具体施工阶段的应用案例,探讨在科学控制施工成本、提升施工企业经济效益方面如何运用BIM技术以发挥其积极作用,为工程成本管理工作提供借鉴和参考。 相似文献
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Peter W. Liesch Rod St. Hill Dawn Birch 《International Journal of Nonprofit & Voluntary Sector Marketing》1998,3(1):45-56
Modem domestic barter systems are operating in Australia and other high-income countries at the local community level, and at the national level for business exchanges. Both governments and firms practise countertrade at the international level. These exchange regimes appear to have become institutionalised in a macromarketing system which is organised on the primacy of market exchange based on price as the coordinating device. In this paper, explanations for this enigma are presented with a particular emphasis on the Australian context. 相似文献
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Larry E. Ribstein 《Managerial and Decision Economics》2012,33(4):211-248
American films have long presented a negative view of business. This article is the first comprehensive and in‐depth analysis of filmmakers' attitude toward business. It shows that it is not business that filmmakers dislike but rather the control of firms by profit‐maximizing capitalists. The article argues that this dislike stems from filmmakers' resentment of capitalists' constraints on their artistic vision. Filmmakers' portrayal of business is significant because films have persuasive power that tips the political balance toward business regulation. Copyright © 2012 John Wiley & Sons, Ltd. 相似文献