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econ.EM2024
Efficient two-sample instrumental variable estimators with change points and near-weak identification
Bertille Antoine, Otilia Boldea, Niccolo Zaccaria
We consider estimation and inference in a linear model with endogenous regressors where the parameters of interest change across two samples. If the first-stage is common, we show…
stat.ML2024
When does Subagging Work?
Christos Revelas, Otilia Boldea, Bas J. M. Werker
We study the effectiveness of subagging, or subsample aggregating, on regression trees, a popular non-parametric method in machine learning. First, we give sufficient conditions fo…