The Effect of Large-Scale Anti-Contagion Policies on the Coronavirus (COVID-19) Pandemic

Solomon Hsiang; Daniel Allen; Sebastien Annan-Phan; Kendon Bell; Ian Bolliger; Trinetta Chong; Hannah Druckenmiller; Andrew Hultgren; Luna Yue Huang; Emma Krasovich; Peiley Lau; Jaecheol Lee; Esther Rolf; Jeanette Tseng; Tiffany Wu

We have provided a brief summary of our data collection processes here (see Appendix Section 2 for more details, including access dates). Epidemiological and policy data for each of the six countries in our sample were collected from a variety of in-country data sources, including government public health websites, regional newspaper articles, and Wikipedia crowd-sourced information. The available epidemiological and policy data varied across the six countries, and preference was given to collecting data at the most granular administrative unit level. The country-specific panel datasets are at the region level in France, the state level in the US, the province level in South Korea, Italy and Iran, and the city level in China. Below, we describe our data sources.