Abstract This paper focuses on Jacques Rueff’s connection with French conventionalists. His first academic piece, Des sciences physiques aux sciences morales (1922) is an epistemological book based on the unification of moral and physical sciences using a shared scientific methodology drawn from conventionalist principles. Indeed, Rueff extends and complements them by going beyond the exclusive scope of … Continue reading Back to Conventionalist Sources of the Epistemology of Economist Engineer Jacques Rueff