Autori:
Conti, Pier Luigi ,
Vicard, Paola ,
Guandalini, Alessio ,
Vitale, Vincenzina ,
Marella, Daniela ,
Di Iorio, Alberto Titolo:
On the estimation of the Lorenz curve under complex sampling designsPeriodico:
Statistical methods & applications : Journal of the Italian Statistical SocietyAnno:
2020 - Volume:
29 - Fascicolo:
1 - Pagina iniziale:
1 - Pagina finale:
24This paper focuses on the estimation of the concentration curve of a finite population, when data are collected according to a complex sampling design with different inclusion probabilities. A (design-based) HƔjek type estimator for the Lorenz curve is proposed, and its asymptotic properties are studied. Then, a resampling scheme able to approximate the asymptotic law of the Lorenz curve estimator is constructed. Applications are given to the construction of (i) a confidence band for the Lorenz curve, (ii) confidence intervals for the Gini concentration ratio, and (iii) a test for Lorenz dominance. The merits of the proposed resampling procedure are evaluated through a simulation study
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SICI: 1618-2510(2020)29:1<1:OTEOTL>2.0.ZU;2-U
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