Friedson, Andrew; McNichols, Drew; Sabia, Joseph J.; … - 2020
the United States, was designed to reduce COVID-19 cases and mortality. While the White House Task Force on the … Coronavirus has credited the State of California for taking early action to prevent a statewide COVID-19 outbreak, no study has … examined the impact of California's SIPO. Using daily state-level coronavirus data and a synthetic control research design, we …