I’m happy to announce that our research note on studying border closures and related restrictions to human mobility in the context of Covid-19 is now available at the International Migration Review.
We highlight how restrictions to human mobility were far from uniform across time and countries. The research note identifies 7 different databases that systematically collected information on these restrictions, which should help others identify the right database — they vary in what exactly they cover.
We also present possible research avenues in connection with these data on mobility restrictions: (1) drivers of Covid-19 mobility restrictions, (2) patterns of policy convergence and divergence, (3) the legality of mobility restrictions, (4) continuity and change in global migration policy, (5) citizenship and international mobility rights. In all these cases, data on restrictions during the pandemic can significantly advance research on the governance of mobility, migration, and citizenship.
Piccoli, Lorenzo, Jelena Dzankic, Didier Ruedin, and Timothy Jacobs-Owen. 2022. “Restricting Human Movement during the COVID-19 Pandemic: New Research Avenues in the Study of Mobility, Migration, and Citizenship.” International Migration Review. doi: 10.1177/01979183221118907. 
Didier Ruedin 