VoxEU Column Opening K-12 schools in the US with no mask requirement for staff may increase the spread of COVID-19 Hiroyuki Kasahara Paul Schrimpf Victor Chernozhukov 8 Mar 2021 COVID-19
VoxEU Column Mask mandates and other lockdown policies reduced the spread of COVID-19 in the US Hiroyuki Kasahara Paul Schrimpf Victor Chernozhukov 15 Jul 2020 COVID-19
Paper Article The Association of Opening K-12 Schools and Colleges with The Spread Of Covid-19 in The United States: County-Level Panel Data Analysis Hiroyuki Kasahara Paul Schrimpf Victor Chernozhukov 17 May 2022
Paper Article Causal Impact of Masks, Policies, Behavior on Early Covid-19 Pandemic in the U.S. Hiroyuki Kasahara Paul Schrimpf Victor Chernozhukov 17 May 2022
