The theory of political markets And the rationality of public policies The concept of political market seems increasingly fashionable among French political scientists. Its use — often a-critical — justifies a doser analysis of the varions éléments of a theory which purports to derive behavior and political rules from the model of the market economy. Treating political space as a market implies an analogical construction. It is necessary, in the first place, to explicate its postulates and hypotheses. In the second place, the neo-liberal paradigm inherent to the political market leads Public Choice theorists to deconstruct the foundations of the Welfare-State. In conclusion, there appears to be a logical incompatibility between the postulat...