These COVID-19 research articles appeared in the Review of Behavioral Economics, they are freely available:
In addition, the Journal of Political Institutions and Political Economy just published a special issue on The Political Economy of Pandemics and the entire issue is freely available.
By Min Zhao
By Marco Pagano
By Giovanni Iachello and Jason Hong
By Bracha Laufer-Goldshtein, Ronen Talmon, and Sharon Gannot
By Bor-Yuh Evan Chang, Cezara Drăgoi, Roman Manevich, Noam Rinetzky, and Xavier Rival