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41.
Sunil K. Mathur 《Statistical Methods and Applications》2009,18(3):375-388
A strictly nonparametric bivariate test for two sample location problem is proposed. The proposed test is easy to apply and
does not require the stringent condition of affine-symmetry or elliptical symmetry which is required by some of the major
tests available for the same problem. The power function of the proposed test is calculated. The asymptotic distribution of
the proposed test statistic is found to be normal. The power of proposed test is compared with some of the well-known tests
under various distributions using Monte Carlo simulation technique. The power study shows that the proposed test statistic
performs better than most of the test statistics for almost all the distributions considered here. As soon as the underlying
population structure deviates from normality, the ability of the proposed test statistic to detect the smallest shift in location
increases as compared to its competitors. The application of the test is shown by using a data set. 相似文献
42.
43.
In the article, properties of the Bennett test and Miller test are analyzed. Assuming that the sample size is the same for each sample and considering the null hypothesis that the coefficients of variation for k populations are equal against the hypothesis that k ? 1 coefficients of variation are the same but differ from the coefficient of variation for the kth population, the empirical significance level and the power of the test are studied. Moreover, the dependence of the test statistic and the power of the test on the ratio of coefficients of variation are considered. The analyses are performed on simulated data. 相似文献
44.
Kung-Jong Lui 《统计学通讯:模拟与计算》2017,46(7):5229-5239
We consider hypothesis testing and estimation of carry-over effects in continuous data under an incomplete block crossover design when comparing two experimental treatments with a placebo. We develop procedures for testing differential carry-over effects based on the weighted-least-squares (WLS) method. We apply Monte Carlo simulations to evaluate the performance of these test procedures in a variety of situations. We use the data regarding the forced expiratory volume in one second (FEV1) readings taken from a double-blind crossover trial comparing two different doses of formoterol with a placebo to illustrate the use of test procedures proposed here. 相似文献
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46.
Studies of the principal-agent relationship find that monetary incentives work in many instances but that they can also backfire. Various mechanisms for this failure have been examined (e.g., intrinsic motivation, image concerns). We posit that an aversion to being exploited, i.e., being used instrumentally for another’s benefit, can also cause incentives to fail. Using an experiment we find that compliance is lower for exploitative principals compared to neutral ones despite using the same contracts. To corroborate our results we show that surveyed “exploitation aversion” mediates this effect. Our results have implications for the design and implementation of incentives within organizations. 相似文献
47.
国外理论界对于资本外逃成因诠释的文献,主要有资产组合理论、人力资本理论、政党轮流执政理论、公共地悲剧理论和政治风险理论,这些理论从不同角度诠释了资本外逃产生的原因及其内在机制,从一个侧面体现了经济学研究的方法论,从早期的文字阐述到模型的构建,从早期的假说、推测到近期的计量分析验证的演进轨迹。 相似文献
48.
气候资源不是《宪法》、《物权法》上明确列举的国家所有权客体,也不具有权利客体的特征。气候资源与国家所有权客体在权利归属、表现形态、使用方式、存在目的上存在较大差异,乃是一种公共财产。基于公共信托理论,国家是公共财产的受托人,对气候资源行使诸如气候资源规划权、保护区设立权、纠纷裁决权及开发利用行政许可权等管理权。因为气候资源不是国家所有权客体,源自气候资源国家管理权的民事主体对气候资源开发利用的权利乃是特许物权。气候资源特许物权具有公私兼容的性质,既具有公法性,又具有私法性。 相似文献
49.
草原实力派作家孟和撰写的历史题材长篇小说《阴山殇》以乌拉特西公旗草原的历史、社会和自然为背景,以权力、暴力、欲望为叙述主线,通过塑造不同阶层人物形象,反映了权力、道德、社会秩序的崩溃以及战乱带来的灾难与恐惧。 相似文献
50.
This paper examines the assumptions that commonly underpin the design of participatory monitoring and evaluation (PM&E) within development programmes through the examination of a case study of a large rural development programme in Uganda. This case study reveals a mismatch between programme assumptions and participant perceptions, which stymied the implementation of PM&E. In this case, PM&E was based on the assumptions that programme and participant goals were compatible, participants were willing to volunteer and engage themselves for the greater good of their communities, and information sharing and communication was fairly free and open. However, farmers within the programme felt that the bureaucratic and accountability requirements of the programme were not their concern, and were acutely aware of power differences between farmers and programme officials, and between farmers of varying status. The key lesson to be drawn from this case is the need for a heightened awareness of power dynamics and political factors in the design of PM&E. 相似文献