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Commentary on “From unidimensional to multidimensional inequality: a review”
Springer Science and Business Media LLC - Tập 78 - Trang 55-59 - 2020
This note is a commentary on F. Andreoli and C. Zoli, “From unidimensional to multidimensional inequality: a review”, Metron, this issue.
Recent results in ridge regression methods
Springer Science and Business Media LLC - Tập 73 - Trang 359-376 - 2015
Necessary and sufficient conditions for superiority of the restricted ridge estimator over the restricted least squares estimator are derived when the set of a prior restrictions on parameters are assumed to be incorrect (as well as when the restrictions are assumed to hold). Condition number and trace of mean square error criteria are used to gauge the goodness of some new and some known ridge pa......
Foreword to the special issue on “Survey Methods for Statistical Data Integration and New Data Sources: tools and real data applications for official statistics”
Springer Science and Business Media LLC -
Dealing sensitive characters on successive occasions through a general class of estimators using scrambled response techniques
Springer Science and Business Media LLC - Tập 76 - Trang 203-230 - 2017
Present article endeavours to propose a general class of estimators to estimate population mean of a sensitive character using non-sensitive auxiliary information under five different scrambled response models in two occasions successive sampling. Various well-known estimators have been modified for the estimation of sensitive population mean and hence they also become a member of proposed general......
Length biased weighted residual inaccuracy measure
Springer Science and Business Media LLC - Tập 68 - Trang 153-160 - 2012
In the present communication we introduce a length biased weighted residual inaccuracy measure between two residual lifetime distributions over the interval (t, ∞). Based on proportional hazard model (PHM), a characterization problem for the weighted residual inaccuracy measure has been studied. A lower bound to the weighted residual inaccuracy measure has also been derived.
Multiply robust imputation procedures for zero-inflated distributions in surveys
Springer Science and Business Media LLC - Tập 75 - Trang 333-343 - 2017
Item nonresponse in surveys is usually treated by some form of single imputation. In practice, the survey variable subject to missing values may exhibit a large number of zero-valued observations. In this paper, we propose multiply robust imputation procedures for treating this type of variable. Our procedures may be based on multiple imputation models and/or multiple nonresponse models. An imputa......
Further results involving percentile inactivity time order and its inference
Springer Science and Business Media LLC - - 2014
Aggregation and marginalization of GARCH processes: some further results
Springer Science and Business Media LLC - Tập 70 - Trang 165-172 - 2013
This paper focuses on the contemporaneous aggregation of GARCH processes. It reconsiders and extends the results achieved by Nijman and Sentana (1996) by showing that the parameters of the weak aggregate GARCH process are exact functions of the underlying processes. More specifically, an algebraic solution is provided in order to derive the implied parameters of the aggregated and marginal process......
Likelihood, credible and confidence intervals for parameters in complex models
Springer Science and Business Media LLC - - 2018
Recent papers have discussed general procedures with complex models to obtain confidence interval statements for a parameter of interest in the presence of nuisance parameters. This paper discusses the role of the likelihood in these procedures, and points out the simplicity of the Bayesian credible interval approach to the same models.
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