Sample Selection and its Consequences for Econometric Evaluations: Theory and Evidence
Evidence From Re-evaluating Random Control Trials
Theory: Counterfactuals, Causality, Models of Selection and Parameters of Interest
Methods to Address Sample Selection
Selection on Observables Only: i. Models of Selection, Control Function and Machine Learning Approaches ii. Matching, Synthetic Controls and Re-weighting
Allowing for selection on unobservables i. Randomized Control Trials ii. Quasi-Experiments and Instrumental Variables
Heterogeneous Treatment Effects and Their Implications:
IV with Heterogeneous Treatment Effects
Models of and Tests for Heterogeneity
Methods to Analyze Heterogeneous Program Effects in RCTs
Effects on Outcome Distributions
Distribution of Treatment Effects
Conditional Average Treatment Effects
Analyzing Heterogeneity in Observational Studies: Marginal Treatment Effects