Doubly Robust DiD#

The drdid module provides all two-period difference-in-differences estimators, including doubly robust, inverse propensity weighted, and outcome regression methods. These estimators follow the frameworks from Sant’Anna and Zhao (2020) and related literature.

Main Functions#

`drdid`	Compute the locally efficient doubly robust DiD estimator for the ATT.
`ipwdid`	Wrap the inverse propensity weighted DiD estimators for the ATT.
`ordid`	Wrap the outcome regression DiD estimators for the ATT.

Panel Data Estimators#

`drdid_imp_panel`	Compute the improved and locally efficient DR-DiD estimator for the ATT with panel data.
`drdid_panel`	Compute the locally efficient doubly robust DiD estimator for the ATT with panel data.
`ipw_did_panel`	Compute the inverse propensity weighted DiD estimator for the ATT with panel data.
`std_ipw_did_panel`	Compute the standardized inverse propensity weighted DiD estimator for the ATT with panel data.
`reg_did_panel`	Compute the outcome regression DiD estimator for the ATT with panel data.
`twfe_did_panel`	Compute linear two-way fixed effects DiD estimator for the ATT with panel data.

Repeated Cross-Section Estimators#

`drdid_imp_rc`	Compute the improved doubly robust DiD estimator for the ATT with repeated cross-section data.
`drdid_imp_local_rc`	Compute the improved and locally efficient DR-DiD estimator for the ATT with repeated cross-section data.
`drdid_rc`	Compute the locally efficient doubly robust DiD estimator for the ATT with repeated cross-section data.
`drdid_trad_rc`	Compute the traditional doubly robust DiD estimator for the ATT with repeated cross-section data.
`ipw_did_rc`	Compute the inverse propensity weighted DiD estimator for the ATT with repeated cross-section data.
`std_ipw_did_rc`	Compute the standardized inverse propensity weighted DiD estimator for the ATT with repeated cross-section data.
`reg_did_rc`	Compute the outcome regression DiD estimator for the ATT with repeated cross-section data.
`twfe_did_rc`	Compute linear two-way fixed effects DiD estimator for the ATT with repeated cross-sections.