The equation following " alongside the treatment indicator" seems to be missing a closing bracket.
I think the summations following "Where Xt is the average across all time periods for unit and Xi is the average across all units for time:" should be from i = 1 and from t= 1, instead of from i=0 and t=0.
Thank you for publicly sharing your handbook!
The equation following " alongside the treatment indicator" seems to be missing a closing bracket.
I think the summations following "Where Xt is the average across all time periods for unit and Xi is the average across all units for time:" should be from i = 1 and from t= 1, instead of from i=0 and t=0.
Thank you for publicly sharing your handbook!