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AI 根据所提供的论文材料归类:摘要研究有限总体调查的小域直接估计与多调查校准,并未说明重复跟踪个体或宏观面板结构,不能据此归入面板方向。

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关注这篇论文的作者
Takis Merkouris

通过回归合并多项调查信息以提高小域估计效率

研究问题
同一有限总体的多个调查包含可比信息时,如何合并这些信息,提高样本量不足的小域估计及稀有人口特征估计的精度?
方法与思路
作者提出扩展校准式回归估计,使不同调查中的可比小域估计相互校准;目标变量采用基于设计且仅涉及域内数据的直接估计。
材料陈述的贡献
摘要称解析结果与实证研究表明,共有调查变量可受益于合并后的样本信息,显著提高小域估计精度,并适用于稀有特征估计。
阅读关注点
应核对各调查信息的可比性、相互校准的约束与方差计算,以及直接估计如何仅使用目标域数据并获得跨调查精度增益。
阅读边界
仅依据所给 Crossref 摘要;摘要未说明抽样设计、调查间重叠处理或精度改善数值,不能判断具体调查组合的收益。

原文摘要

Summary In sample surveys of finite populations, subpopulations for which the sample size is too small for estimation of adequate precision are referred to as small domains. Demand for small domain estimates has been growing in recent years among users of survey data. We explore the possibility of enhancing the precision of domain estimators by combining comparable information collected in multiple surveys of the same population. For this, we propose a regression method of estimation that is essentially an extended calibration procedure whereby comparable domain estimates from the various surveys are calibrated to each other. We show through analytic results and an empirical study that this method may greatly improve the precision of domain estimators for the variables that are common to these surveys, as these estimators make effective use of increased sample size for the common survey items. The design-based direct estimators proposed involve only domain-specific data on the variables of interest. This is in contrast with small domain (mostly small area) indirect estimators, based on a single survey, which incorporate through modelling data that are external to the targeted small domains. The approach proposed is also highly effective in handling the closely related problem of estimation for rare population characteristics.

笔记与分组
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