Recent Innovations in Difference in Differences
Paper Session
Friday, Jan. 5, 2024 2:30 PM - 4:30 PM (CST)
- Chair: Francis Vella, Georgetown University
A Negative Correlation Strategy for Bracketing in Difference-in-Differences
Abstract
N/ALarge-Sample Properties of the Synthetic Control Method under Selection on Unobservables
Abstract
We analyze the synthetic control (SC) method in panel data settings with many units. We assume the treatment assignment is based on unobserved heterogeneity and pre-treatment information, allowing for both strictly and sequentially exogenous assignment processes. We show that the critical property that determines the behavior of the SC method is the ability of input features to approximate the unobserved heterogeneity. Our results imply that the SC method delivers asymptotically normal estimators for a large class of linear panel data models as long as the number of pre-treatment periods is sufficiently large, making it a natural alternative to the Difference-in-Differences.Non Linear Difference-In-Differences via Distribution Regression
Abstract
N/AJEL Classifications
- C4 - Econometric and Statistical Methods: Special Topics