Published on in Vol 8, No 4 (2020): April
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/19359, first published
.
1 Department of Economics, University of Oxford, Oxford, United Kingdom
2 Rechts- und Wirtschaftswissenschaften, Johannes Gutenberg-Universität Mainz, Mainz, Germany
3 Gesellschaft für Freiheitsrechte (German Society for Civil Rights), Berlin, Germany
*all authors contributed equally