Plot: The documentary series "Travail, salaire, profit" (work, salary, profit) takes us into the mysteries of the global economy, which is often too opaque to grasp all the ins and outs. Gérard Mordillat and Bertrand Rothé interview 21 researchers from around the world - economists, sociologists, historians, anthropologists, philosophers - on the fundamental concepts of the economy: work, employment, wages, capital, profit and the market