Panel data are a very valuable resource for finding empirical solutions to political science puzzles. Yet numerous published studies in political science that use panel data to estimate models with dy
This study proposes a semiparametric estimation method for a censored regression model subject to nonparametric sample selection without the exclusion restriction. Consistency and asymptotic normality
Ninth Circuit is a binary variable equal to one if the company is located in the jurisdiction of the Ninth Circuit. Post-1999 is equal to one after 1999 and zero otherwise. Board gender diversity is t
