9 citations · 24 across the 54 of their papers we have counts for
4 papers · 2 filters
Exact finite-sample bias, variance, and MSE of normalized scale-invariant inequality indices under Gamma mixture models
Roberto Vila, Felipe Quintino
We study the finite-sample properties of estimators of a broad class of normalized scale-invariant inequality indices (NSIIs) under finite Gamma mixture models. The class includes…
Characterizations of independence between order statistics and rank indicators
Roberto Vila, Frederico Almeida
We study the independence between an order statistic and its corresponding rank indicator for independent nonnegative random variables. A general characterization is established th…
Conditional copula representations and extremal bounds for multivariate statistical functionals
Roberto Vila, Cira E G Otiniano, Carolyne Brito +1
In this paper, we derive a conditional copula representation for expectations of the form , where is a random vector with arbitrary…
Bias analysis of a linear order-statistic inequality index estimator: Unbiasedness under gamma populations
Roberto Vila, Helton Saulo
This paper studies a class of rank-based inequality measures built from linear combinations of expected order statistics. The proposed framework unifies several well-known indices,…