Just as in other parts of the world, Europe's social security systems face many challenges. Economic crises, the ageing of the population, and changing employment patterns call for a reorientation of policies. In the last few decades, the introduction of private elements has often been advocated as a way forward. This privatization gives rise to new questions: What are the public interests that call for government responsibility? What can be regarded as the public interest in our social security systems? What are the mechanisms that safeguard these interests? What is the role of public and private regulation? This multidisciplinary study approaches these questions from the point of view of economics, public administration, law, and philosophy. The major conclusion is that a strict public-private distinction is a dead end. It is important that society gain more understanding of mixed public-private governance structures. This requires, first of all, further research into the normative a
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