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601.
Diversity has long been assumed to have positive effects on organizational and group performance. Empirical evidence to date fails to support this assumption. The present paper provides a preliminary examination of the effects of diversity on a group task. The data are part of an ongoing study, where individual demographic information and task performance of groups have been collected. Diversity indices for racial and gender diversity are examined to determine the effects they might have on task performance. The instructions of the task, however, vary. In one situation, 2 groups are instructed to compete with one another. In the other situation, 2 groups are instructed to cooperate with one another. T-test ANOVA, and ANCOVA results consistently indicate that task-type influences changes in group-based outcomes. The implications of these preliminary results and future directions of research are discussed. 相似文献
602.
In this paper the environmental and economic effects of the introduction of a unilateral energy tax in the Netherlands are analysed using an applied general equilibrium (AGE) model. The effects of a small user energy tax and a general energy tax are compared, while taking into account different tax recycling mechanisms. The model contains a great level of detail with respect to emissions and environmental indicators (greenhouse effect, acidification, eutrophication and waste), which is helpful for assessing environmental quality. The results show that the introduction of a small environmental tax reform not only improves the environment but also raises non-environmental welfare, which is due to an improvement of the efficiency of the tax structure. 相似文献
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Jack Strauss 《Southern economic journal》1998,65(2):223-244
This work explores three critical assumptions of the Balassa-Samuelson productivity differential model for the short and medium run: wage equalization, competitive labor markets, and purchasing power parity. The data reveal violations in these assumptions for France, Germany, Japan, the U.K., and the U.S. Significant wage and unit labor cost differentials exist across industries, and traded and nontraded sectors and these differentials do not diminish over time. The findings are consistent with the presence of industry and/or sectoral-specific human capital. 相似文献
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Jack Smith 《R&D Management》2000,30(4):305-311
The past two decades have witnessed unprecedented changes to national laboratories as they have adjusted to globalized and technology based competition. These transitions are reviewed in the context of how Canada's National Research Council has progressed from an internally oriented R&D organization into a more externally focused innovation organization, now coping with the challenges of strategic knowledge management. The paper traces the steps and paradigms involved in this transition and offers some commentary on the extent of the corporate cultural learning that has been required to effect these changes. 相似文献
609.
Three methods of comparing factor structures among separate factor analytic studies are examined. Examples are developed for each of the three methods, illustrating typical uses in different research settings. Major characteristics of the methods are compared and summarized. The article is essentially a non-technical and nonexhaustive overview of comparison methods directed to researchers not fully acquainted with the function and utility of these comparatively new techniques. The examples used are developed from a large-scale consumer study, but applications obviously extend to a much broader group of business research situations. 相似文献
610.
In her paper, Janet Landa argues that the key behind the success of the ethnically homogeneous Chinese middleman group (EHMG) is their highly developed in-group cooperation. She places the EHMG phenomenon within the framework of evolutionary biology by calling it 'a cultural transmission unit' subject to the influence of both genes and culture. Landa suggests that the individual members of the EHMG comprise the units of selection for EHMG groups much like the genes comprise the units of selection for individual organisms. However, evolution occurs through the differential survival and reproduction of individual organisms. In order to meet the criteria of biological group selection, it would have to be demonstrated that groups in competition with EHMGs had gone extinct. The fact that the EHMGs are simply faring better than their competitors is not evidence for group selection. The other reason biological group selection is not really applicable to EHMGs is that there are no physical/biological barriers to exogamous mating, and cultural barriers are intrinsically unstable. 相似文献