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arXiv 1503.08156stat.ME
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前物种误差界内基尼系数的估计

Estimation of Gini Index within Pre-Specied Error Bound

Bhargab Chattopadhyay, Shyamal Krishna De

摘要:

基尼系数是一种广泛使用的衡量经济不平等的指标。本文提出了一种构造基尼指数置信区间的一般理论,该理论具有一定的置信系数和一定的宽度。固定样本量方法不能同时达到指定的置信系数和指定的宽度。本文提出了一种纯序贯的基尼系数区间估计方法,具有一定的置信系数和固定的误差范围。证明了该方法的最优性,即一阶渐近有效性和渐近一致性。所有的理论结果都是在不假设数据的任何特定分布的情况下得出的。

英文摘要:

Gini index is a widely used measure of economic inequality. This article develops a general theory for constructing a confidence interval for Gini index with a specified confidence coefficient and a specified width. Fixed sample size methods cannot simultaneously achieve both the specified confidence coefficient and specified width. We develop a purely sequential procedure for interval estimation of Gini index with a specified confidence coefficient and a fixed margin of error. Optimality properties of the proposed method, namely first order asymptotic efficiency and asymptotic consistency are proved. All theoretical results are derived without assuming any specific distribution of the data.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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