Prof. Dr. Jörg Althammer is an economist and teaches economic ethics and social policy at the Faculty of Economics at the Catholic University of Eichstätt-Ingolstadt.Prof. Dr. Berhard Neumärker teaches Economic Policy at the Faculty of Economics and Behavioral Sciences at the University of Freiburg. He is Director of the Department of Economic Policy and Constitutional Economic Theory in the faculty.Prof. Dr. Ursula Nothelle-Wildfeuer is a theologian and teaches Christian Social Ethics at the University of Freiburg.

• Introduction.- Theoretical Foundations.- Solidarity: From small communities to global societies.- Solidarity as a System of Norms.- Solidarity and Responsibility. Open Societies and the Ethics of Absolute Alterity.- From Civic Virtue to the Informal Sphere. Reorienting Democratic Theories of Solidarity.- Reconcilable Ambiguities? Solidarity from an American Perspective.- Autonomous responsibility within the framework of James Griffin’s concept of personhood.- Anthropological and Political Solidarity in Early Marx.- Beyond the Lockean Limits of Tolerating the Intolerable: What Could Solidarity Offer?.- If solidarity is the answer, what was the question? “Thick” and “thin” solidarity and embedded conceptionsof individual responsibility.- Applications.- Principles of morals, natural law, and politics in dealing with refugees.- Cooperating fairly: Economic Solidarity in Open Societies.- Ethnocentric solidarity.- Solidarity as Response to DiShowing Solidarity as an Ethical Response to Displaced and Weak Personssplacement and Repression.- Migration Policy: What can we learn from Cooperatives?.