This axis is devoted to the articulation of socio-economic objectives, the analysis of their interaction and the identification of institutional structures allowing to achieve them. In economics, efficiency is presented as the first virtue of our institutions. It is generally accepted that this angle of analysis refrains from making value judgments. This is misleading. First, any efficiency analysis is based on implicit value judgments. Second, the values underlying the notion of economic efficiency are far from being the only social objectives that matter. They have to be weighed against other goals such as considerations of distributive justice or of recognition. In the various projects envisaged, we propose to better articulate these objectives by analyzing their interaction and by identifying the institutional structures that allow them to be respected in practice.