On equivalencies between design-based and regression-based variance estimators for randomized experiments

被引:26
作者
Samii, Cyrus [1 ]
Aronow, Peter M. [2 ]
机构
[1] NYU, Dept Polit, New York, NY 10012 USA
[2] Yale Univ, Dept Polit Sci, New Haven, CT 06520 USA
关键词
Potential outcomes; Randomized experiments; Robust variance estimators; ADJUSTMENTS; BIAS;
D O I
10.1016/j.spl.2011.10.024
中图分类号
O21 [概率论与数理统计]; C8 [统计学];
学科分类号
020208 ; 070103 ; 0714 ;
摘要
This paper demonstrates that the randomization-based "Neyman" and constant-effects estimators for the variance of estimated average treatment effects are equivalent to a variant of the White "heteroskedasticity-robust" estimator and the homoskedastic ordinary least squares (OLS) estimator, respectively. (C) 2011 Elsevier BM. All rights reserved.
引用
收藏
页码:365 / 370
页数:6
相关论文
共 15 条
[1]  
Angrist JD, 2009, MOSTLY HARMLESS ECONOMETRICS: AN EMPIRICISTS COMPANION, P1
[2]  
[Anonymous], 2002, Springer Series in Statistics
[3]  
[Anonymous], CAMBRIDGE HDB EXPT P
[4]  
Cochran W.G., 2007, Sampling techniques
[5]  
Freedman D., 1998, Statistics, V3rd, pa
[6]   ON REGRESSION ADJUSTMENTS IN EXPERIMENTS WITH SEVERAL TREATMENTS [J].
Freedman, David A. .
ANNALS OF APPLIED STATISTICS, 2008, 2 (01) :176-196
[7]   On regression adjustments to experimental data [J].
Freedman, David A. .
ADVANCES IN APPLIED MATHEMATICS, 2008, 40 (02) :180-193
[8]   Randomization inference and bias of standard errors [J].
Gadbury, GL .
AMERICAN STATISTICIAN, 2001, 55 (04) :310-313
[9]   ESTIMATING HETEROSCEDASTIC VARIANCES IN LINEAR-MODELS [J].
HORN, SD ;
HORN, RA ;
DUNCAN, DB .
JOURNAL OF THE AMERICAN STATISTICAL ASSOCIATION, 1975, 70 (350) :380-385
[10]   SOME HETEROSKEDASTICITY-CONSISTENT COVARIANCE-MATRIX ESTIMATORS WITH IMPROVED FINITE-SAMPLE PROPERTIES [J].
MACKINNON, JG ;
WHITE, H .
JOURNAL OF ECONOMETRICS, 1985, 29 (03) :305-325