Pre-event Trends in the Panel Event-study Design

We thank Isaiah Andrews, Matias Cattaneo, Raj Chetty, Jeff Clemens, Amy Finkelstein, Josh Gottlieb, Pat Kline, David Neumark, Matt Notowidigdo, Emily Oster, Jonathan Roth, Bryce Steinberg, and seminar participants at Brown University, Hebrew University, the NBER Summer Institute, Stanford University, and Tel Aviv University for helpful comments. We thank Justine Hastings for sharing regression output. We acknowledge financial support from the National Science Foundation under Grant No. 1558636 and Grant No. 1658037 and from the Brown University Population Studies and Training Center. The views expressed herein are those of the authors and do not necessarily reflect the views of the Federal Reserve Bank of Philadelphia, the Federal Reserve System, or the National Bureau of Economic Research.

• online appendix

• April 25, 2018
• May 1, 2019