Two-Sample Instrumental Variables Estimators
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Following an influential article by Angrist and Krueger (1992) on two-sample instrumental variables (TSIV) estimation, numerous empirical researchers have applied a computationally convenient two-sample two-stage least squares (TS2SLS) variant of Angrist and Krueger's estimator. In the two-sample
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美国国家经济研究局创建时间：
2005-06-01
