His Cours d'economie politique (1838-54) gave in classic form an exposition of the doctrines of Say, Malthus and Ricardo.
His other works were Traite de droit penal (1829); Cours de droit constitutionnel (1866-67), and Mélanges d'economie politique, d'histoire et de philosophie (2 vols., 1857).
Carrara erected a statue to his memory in 1876, and in 1887 the Societe d'economie politique celebrated his centenary with a notice of his life and works.
He wrote Essai politique sur le revenue des peuples de l'antiquite, du moyen age, &c. (1808); Des systemes d'economie politique (1809); Theorie d'economie politique (1815); Dictionnaire analytique de l'economie politique (1826).
Besides those already mentioned the more important are: Cours d'economie politique (1842-1850); Essais de politique industrielle (1843); De la baisse probable d'or (1859, translated into English by Cobden, On the Probable Fall of the Value of Gold, Manchester, 1859); L'Expedition du Mexique (1862); Introduction aux rapports du jury international (1868).
He mentions in it only one previous enterprise of the same kind (though there had in fact been others) - that, namely, of Nicholas Francois Canard (c. 1750-1833 ), whose book, Principes d'economie politique (Paris, 1802), was crowned by the French Academy, though "its principles were radically false as well as erroneously applied."
In 1803 appeared his principal work, the Traite d'economie politique.
He published in1828-1830his Cours complet d'economie politique pratique, which is in the main an expansion of the Traite, with practical applications.
Among them are, in addition to those already mentioned, Catechisme d'economie politique (1815); Petit Volume contenant quelques aperqus des hommes et de la societe, lettres a Malthus sur differens sujets d'economie politique (1820); Epitome des principes de l'economie politique (1831).
To the above must be added an edition of Storch's Cours d'economie politique, which Say published in 1823 without Storch's authorization, with notes embodying a "critique amere et virulente," a proceeding which Storch justly resented.
The last edition of the Traite d'economie politique which appeared during the life of the author was the 5th (1826); the 6th, with the author's final corrections, was edited by the eldest son, Horace Emile Say, himself known as an economist, in 1846.
The Cours d'economie politique pratique, from which Morstadt had given extracts, was translated into German by Max Stirner (1845).
In 1796 he was made a member of the Institute, was appointed to a professorship of political economy, and founded tin Journal d'economie publique, de morale et de legislation.