Next November 18, at the invitation of the Hospinnomics Chair, I will present an economic analysis of the orphan drug market. Meet at 5 p.m., Dupuytren amphitheater at Hôtel-Dieu, 1 Parvis Notre-Dame, (Paris). After an inventory of the innovation dynamics and the industrial organization of this market, an empirical financial analysis of the attractiveness of investment in R&D of orphan drugs will be presented.