Revisiting Group Differences in High-Dimensional Choices: Method and Application to Congressional Speech

Paul Hofmarcher, Jan Vávra, Sourav Adhikari +1

Gentzkow, Shapiro and Taddy, Econometrica Vol 87, No 4, 2019 (henceforth GST) use a supervised text-based regression model to assess changes in partisanship in U.S. congressional s…