An introduction to heterogeneous treatment effects using the two-stage DID estimator of Gardner (2021)
An introduction to difference in differences with multiple time periods and staggered treatment adoption.
An introduction to difference in differences with multiple time periods and staggered treatment adoption.
An introduction to the basic differences in differences method using the classical incenerator example of Kiel and McClain (1995)
This method constructs a synthetic control unit as a weighted average of available control units that best approximate the relevant characteristics of the treated unit prior to treatment.