1803

Traité d'économie politique (Treatise on economic policy) by Jean-Baptiste Say

Say aimed to pop­ularise Adam Smith's writings and help spread his ideas. He also developed the eponymous Say's law, which states that the money obtained from selling a product makes it pos­sible to buy other products. His Treatise com­prises three books, each dealing with a stage in the eco­nomic process: pro­duction, dis­tri­bution and con­sumption of wealth.