We argue that this is because most countries have opted
one of the reasons for this is that most countries have
Zimmermann Abstract Calls for solidarity have been
contact-tracing app in Germany, further restrictions have
proximity detection apps to help warn people who might have
up to the beginning of 2020Many natural substances have
* Have you got a certificate such as „Zertifikat Deutsch
* Have you got a certificate such as „Zertifikat Deutsch
the interests protected by Covid-19 measures might have
Olson, Benno Torgler Abstract Governments have
