In times of Corona, solidarity instead of selfish competition is demanded. At the Götz Werner Professorship (GWP) and the Freiburg Institute for Basic Income Studies (FRIBIS), among other things, an economic and interdisciplinary analysis of solidarity is carried out, which is otherwise rather neglected. This is the subject of the book “Solidarity in Open Societies” which was published in 2019 with Bernhard Neumärker as co-editor. Available under: https://link.springer.com/book/10.1007%2F978-3-658-23641-0