Non-regular Statistical Estimation (lecture Notes In Statistics)

In order to obtain many of the classical results in the theory of statistical estimation, it is usual to impose regularity conditions on the distributions under consideration. In small sample and large sample theories of estimation there are well established sets of regularity conditions, and it is worth while to examine what may follow if any one of these regularity conditions fail to hold. "Non-regular estimation" literally means the theory of statistical estimation when some or other of the regularity conditions fail to hold. In this monograph, the authors present a systematic study of the meaning and implications of regularity conditions, and show how the relaxation of such conditions can often lead to surprising conclusions. Their emphasis is on considering small sample results and to show how pathological examples may be considered in this broader framework. Front Matter....Pages i-viii General Discussions on Unbiased Estimation....Pages 1-19 Lower Bound for the Variance of Unbiased Estimators....Pages 20-60 Amounts of Information and the Minimum Variance Unbiased Estimation....Pages 61-83 Loss of Information Associated with the Order Statistics and Related Estimators in the Case of Double Exponential Distributions....Pages 84-103 Estimation of a Common Parameter for Pooled Samples from the Uniform Distributions and the Double Exponential Distributions....Pages 104-123 Higher Order Asymptotics in Estimation for Two-Sided Weibull Type Distributions....Pages 124-146 “3/2-th” and Second Order Asymptotics of the Generalized Bayes Estimators for a Family of Truncated Distributions....Pages 147-165 Supplement The Bound for the Asymptotic Distribution of Estimators when the Maximum Order of Consistency Depends on the Parameter....Pages 166-173 Back Matter....Pages 175-186