Migration, mobility and transformation are closely related phenomena. The transformation of the economy and society mobilizes people whose migrations, in turn, trigger transformation processes in their countries of origin and destination and create new transnational spaces “in-between.” This research area takes interest in migration, mobility and the transnationaliziation of societies in the wake of post-1989 changes, but also during the era of state socialism, thus bringing into focus phenomena of “socialist globalization.” More generally, it also focuses on conceptions of migration governance and (de-)regulation in the context of (neo-)liberal transformations on a European and global scale.