Compensating for academic loss: Online learning and student performance during the COVID-19 pandemic

Learning loss due to school closures during the COVID-19 pandemic

(2021) Per Engzell et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Economic and social consequences of human mobility restrictions under COVID-19

(2020) Giovanni Bonaccorsi et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Unobservable Selection and Coefficient Stability: Theory and Evidence

(2016) Emily Oster   JOURNAL OF BUSINESS & ECONOMIC STATISTICS

The Impact of Smoking Bans on Smoking and Consumer Behavior: Quasi-Experimental Evidence from Switzerland

(2014) Stefan Boes et al.   HEALTH ECONOMICS

Dealing with limited overlap in estimation of average treatment effects

(2009) R. K. Crump et al.   BIOMETRIKA

Unconditional Quantile Regressions

(2009)   ECONOMETRICA