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 Özlem Tugfe Demir, Emil Björnson, and Luca Sanguinetti
By Ridho Reinanda, Edgar Meij, and Maarten de Rijke
By Yihong Wu and Pengkun Yang
By Min Zhao
By Bobby J. Calder