This paper establishes the theoretical result that the sample $m$th Gini index is an unbiased estimator of the population $m$th Gini index, introduced by Gavilan-Ruiz (2024), for gamma-distributed populations. An illustrative Monte Carlo simulation study confirms the unbiasedness of the sample $m$th Gini index estimator in finite samples.
翻译:本文建立了理论结果:对于伽马分布总体,样本$m$阶基尼指数是总体$m$阶基尼指数(由Gavilan-Ruiz于2024年提出)的无偏估计量。一项说明性的蒙特卡洛模拟研究证实了样本$m$阶基尼指数估计量在有限样本中的无偏性。