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ABSTRACT:
SUBMITTER: Pacini D
PROVIDER: S-EPMC5026329 | biostudies-literature | 2016 Sep
REPOSITORIES: biostudies-literature
Pacini David D Windmeijer Frank F
Economics letters 20160901
The Two-Sample Two-Stage Least Squares (TS2SLS) data combination estimator is a popular estimator for the parameters in linear models when not all variables are observed jointly in one single data set. Although the limiting normal distribution has been established, the asymptotic variance formula has only been stated explicitly in the literature for the case of conditional homoskedasticity. By using the fact that the TS2SLS estimator is a function of reduced form and first-stage OLS estimators, ...[more]