GMM is Inadmissible Under Weak Identification

Bootstrap Inference in the Presence of Bias

Partially Linear Models under Data Combination

Heterogeneity, Uncertainty and Learning: Semiparametric Identification and Estimation

A Simple and Computationally Trivial Estimator for Grouped Fixed Effects Models

Transfer Estimates for Causal Effects Across Heterogeneous Site

An Exact t-Test

Shrinkage Estimation of Two-Way Effects with Matched Data

Minimax Regret Treatment Rules in Finite Samples

On the Existence and Information of Orthogonal Moments