2 papers
econ.EM2023
Robust inference for the treatment effect variance in experiments using machine learning
Alejandro Sanchez-Becerra
Experimenters often collect baseline data to study heterogeneity. I propose the first valid confidence intervals for the VCATE, the treatment effect variance explained by observabl…
econ.EM2022
The Network Propensity Score: Spillovers, Homophily, and Selection into Treatment
Alejandro Sanchez-Becerra
I establish primitive conditions for unconfoundedness in a coherent model that features heterogeneous treatment effects, spillovers, selection-on-observables, and network formation…