Differentiated integration (DI), whereby some MS opt out or are excluded from certain common EU policies for … sovereignty or capacity reasons, may be thought to undermine the EU’s functioning as what John Rawls called a fair scheme of … cooperation, grounded in norms of impartiality and reciprocity. However, we argue that different forms of DI can be compatible …

wages in the legal labor market). Public security policies are defined as pairs of a size of the police force and an average … length of sentences. We propose an original micro-founded police production function linking the level of police expenditures …