Example: dental hygienist
Search results with tag "In dif slides"
Dif In Dif Slides.ppt [Repaired] - Wharton Finance
finance.wharton.upenn.edu» Implies alternative route to DD estimator: subtract difference in average leverage for treatment and control in 1991 from the difference in average leverage for treatment and control in 1992 » β 1 is the average leverage of treatment firms in the pre-treatment era relative