estimator
argument to event_study
and added vignette discussing the different estimators’ assumptionsMade code more robust by improving sparse model matrix creation
Rewrote covariance matrix creation to be faster and more robust
Improved block bootstrapping code using boot::boot
Fixed Sun and Abraham bug in event_study
, h/t Frederik Noack
Add event_study
and plot_event_study
functions
Seperated did_imputation
to new package didimputation
Add did_imputation
following Borusyak, Jaravel, and Spiess (2021)
Speed up did2s
Use sparse matrices to use much less memory
Fix analytic standard errors when using weights