V2EX between-estimator

BETWEEN-ESTIMATOR

定义 Definition

between-estimator(组间估计量):面板数据计量经济学中的一种估计方法,把同一单位(如个人、企业、国家)在时间维度上的观测值先取时间平均,再用这些“单位之间”的平均差异来估计回归系数。它主要利用截面(单位间)变异,而不是单位内部随时间变化的变异。
(注:在面板模型中,它常与 within estimator(固定效应/组内估计) 对照使用。)

发音 Pronunciation (IPA)

/btwin stmetr/

例句 Examples

The between-estimator uses each individual's time-average data.
组间估计量使用每个个体的时间平均数据。

In a panel regression, the between-estimator can be biased if unobserved individual effects are correlated with the regressors.
在面板回归中,如果不可观测的个体效应与解释变量相关,组间估计量可能会有偏差。

词源 Etymology

between 意为“在……之间、组间的”,强调不同个体/单位之间的差异;estimator 来自 estimate(估计),指“用来估计参数的量/方法”。合起来表示“利用组与组之间差异来进行参数估计的方法”。

相关词 Related Words

文献作品 Literary / Notable Works

  • Wooldridge, Econometric Analysis of Cross Section and Panel Data(讨论面板模型、固定效应与相关估计量,对“between/within”分解有系统讲解)
  • Baltagi, Econometric Analysis of Panel Data(面板数据经典教材,涵盖 between/within 估计与相关推导)
  • Greene, Econometric Analysis(在面板数据章节中介绍多种估计方法及其性质)
  • Hsiao, Analysis of Panel Data(面板数据理论与方法的代表性专著,涉及组间与组内信息的使用)
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