For a relativist economics

Economics was founded in reference to production and exchange of essentials. Jean-Marc Oury suggests a theory centered on the development of relations between agents, through which they build their own identity by means of material or immaterial, and merchant or non-merchant exchange. In reference to Defoe's Robinson Crusoe, the economists asserted that trade generated efficiency ; in Jean-Marc Oury's opinion, the most significant point is the conditions that lead Crusoe and Friday to cooperate in spite of all the things that drive them apart, and not only what they build together.