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91.
Jayati Ghosh 《Globalizations》2017,14(6):830-839
The economic forces underlying Brexit—and the election of Donald Trump in the US—are similar, but they are also well advanced in many European countries, where much of the population faces similar material insecurity and stagnation. These frustrations can easily be channelled by right-wing xenophobic forces. To combat this, the EU needs to undo some of its design flaws and particularly its adherence to fiscal austerity rules. Only a more progressive and more flexible union based on solidarity of peoples is likely to survive. 相似文献
92.
It is well‐known that a spontaneous reporting system suffers from significant under‐reporting of adverse drug reactions from the source population. The existing methods do not adjust for such under‐reporting for the calculation of measures of association between a drug and the adverse drug reaction under study. Often there is direct and/or indirect information on the reporting probabilities. This work incorporates the reporting probabilities into existing methodologies, specifically to Bayesian confidence propagation neural network and DuMouchel's empirical Bayesian methods, and shows how the two methods lead to biased results in the presence of under‐reporting. Considering all the cases to be reported, the association measure for the source population can be estimated by using only exposure information through a reference sample from the source population. Copyright © 2014 John Wiley & Sons, Ltd. 相似文献
93.
Recently, authors have studied inequalities involving expectations of selected functions, viz. failure rate, mean residual life, aging intensity function, and log-odds rate which are defined for left truncated random variables in reliability theory to characterize some well-known distributions. However, there has been growing interest in the study of these functions in reversed time (X ? x, instead of X > x) and their applications. In the present work we consider reversed hazard rate, expected inactivity time, and reversed aging intensity function to deal with right truncated random variables and characterize a few statistical distributions. 相似文献
94.
95.
The present article brings in the notion of Posterior Pitman Closeness (PPC) in contrast to the usual Pitman Closeness (PC) criterion. Unlike the PC criterion, the PPC criterion does not suffer from lack of transitivity. Also, a posterior median is usually a posterior Pitman closest estimator of the parameter of interest. Examples are provided to illustrate these ideas. Also, some multivariate analogs of these results are presented. 相似文献
96.
Malay Ghosh 《统计学通讯:理论与方法》2013,42(9):2081-2094
For estimating functionals of the form ∫∫φ(x,y)dF(x) dF(y), nonparametric empirical Bayes estimators are developed which are competitors of the classical U-statistics. Asymptotic optimality of the proposed estimators is proved 相似文献
97.
The paper considers maximum likelihood estimation of the location parameters and the failure rates of two parameter exponentials under type I censoring. Both the one and two sample cases are considered. It turns out that by debiasing the maximum likelihood estimators of the location parameters, one can achieve asymptotically 50% mean squared error reduction. 相似文献
98.
Malay Ghosh 《统计学通讯:理论与方法》2013,42(21):2215-2229
In simple random sampling without replacement from a finite population, sequential point estimators of the means of U-statistics are proposed. The proposed procedure is shown to be asymptotically risk efficient in the sense of Starr (Ann. Math. Statist. (1966), 1173-1185) 相似文献
99.
The Paper considers estimation of the p(> 3)-variate normal mean when the variance-covariance matrix is diagonal with unknown diagonal elements. A class of James-Stein estimators is developed, and is compared with the sample mean under an empirical minimax stopping rule. Asymptotic risk expansions are provided for both the sequential sample mean and the sequential James-Stein estimators. It is shown that the James-Stein estimators dominate the sample mean in a certain asymptotic sense. 相似文献
100.
Empirical Bayes (EB) methods are very useful for post selection inference. Following Datta et al. (2002), we construct EB confidence intervals for the selected population mean. The EB intervals are adjusted to achieve the target coverage probabilities asymptotically up to the second order. Both unconditional coverage probabilities of EB intervals and corresponding probabilities conditional on ancillary statistics are found. 相似文献