A simple test for the ignorability of non-compliance in experiments

被引:6
作者
Huber, Martin [1 ]
机构
[1] Univ St Gallen, Dept Econ, CH-9000 St Gallen, Switzerland
关键词
Experiment; Treatment effects; Non-compliance; Endogeneity; Test;
D O I
10.1016/j.econlet.2013.05.018
中图分类号
F [经济];
学科分类号
02 ;
摘要
This paper proposes a simple method for testing whether non-compliance in experiments is ignorable, i.e., not jointly related to the treatment and the outcome. The approach consists of (i) regressing the outcome variable on a constant, the treatment, the assignment indicator, and the treatment/assignment interaction and (ii) testing whether the coefficients on the latter two variables are jointly equal to zero. A brief simulation study illustrates the finite sample properties of the test. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码:389 / 391
页数:3
相关论文
共 5 条
[1]  
Angrist JD, 1996, J AM STAT ASSOC, V91, P444, DOI 10.2307/2291629
[2]  
de Luna X., 2012, 6692 IZA
[3]  
Donald S.G., 2011, TESTING UNCONF UNPUB
[4]  
Pearl J, 1995, BIOMETRIKA, V82, P669, DOI 10.2307/2337329
[5]   ESTIMATING CAUSAL EFFECTS OF TREATMENTS IN RANDOMIZED AND NONRANDOMIZED STUDIES [J].
RUBIN, DB .
JOURNAL OF EDUCATIONAL PSYCHOLOGY, 1974, 66 (05) :688-701