Biewen, Martin; Kugler, Philipp - 2020
We develop the case of two-stage least squares estimation (2SLS) in the general framework of Athey et al. (Generalized … Supply: Evidence from Exogenous Variation in Family Size, American Economic Review, Vol. 88, 1998). The two-stage least … squares random forest allows one to investigate local heterogenous effects that cannot be investigated using ordinary 2SLS. …