Thinking ethical and regulatory frameworks in medicine from the perspective of solidarity on both sides of the Atlantic.

This article provides a concise overview of the history of scholarship on solidarity in Europe and North America. While recent decades have seen an increase in conceptual and scholarly interest in solidarity in North America and other parts of the Anglo-Saxon world, the concept is much more strongly anchored in Europe. Continental European politics in particular have given rise to two of the most influential traditions of solidarity, namely, socialism and Christian ethics. Solidarity has also guided important public instruments and institutions in Europe (e.g., welfare, healthcare, etc.). Despite the much stronger affinity of continental European societies to solidaristic thinking, we argue that solidarity has much to offer for addressing societal challenges on both sides of the Atlantic and beyond. After proposing a working definition of solidarity that highlights its utility for guiding policy and practice, we give an example of how a solidarity-based perspective can shape instruments for the governance of data use.