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In 1830, after the July Revolution, he became a Saint-Simonian, and edited their paper Le Globe. The paper was banned in 1832, when the "Simonian sect" was found to be prejudicial to the social order, and Chevalier, as its editor, was sentenced to six months imprisonment.
After his release, Minister of the Interior Adolphe Thiers sent him in 1834 on a mission to the United States and Mexico, to observe the state of industrial and financial affairs in the Americas. In the United States, Chevalier visited different parts of the country studying American society, its manners and political, social, and economic institutions. He made some keen observations along the way that were published in France by the Journal des débats producing at the time "an immense effect". In Mexico he exchanged ideas with the mineralogist and politician Andrés Manuel del Río. It was during this trip that he also developed the idea that the Spanish-speaking and Portuguese-speaking parts of the Americas shared a cultural or racial affinity with all the European peoples with a Romance culture. Chevalier postulated that this part of the Americas were inhabited by people of a "Latin race," which could be a natural ally of "Latin Europe" in its struggle with "Teutonic Europe," "Anglo-Saxon America" and "Slavic Europe." The idea was later taken up by French and Latin American intellectuals and political leaders of the mid and late nineteenth century, who no longer looked to Spain or Portugal as cultural models, but rather to France, and who coined the term "Latin America". In the end, this was just an excuse for France to invade Mexico, which Chevalier supported.
In 1837, he wrote a well received work, Des intérèts matériels en France, after which his career took off. At age 35, he was appointed professor of political economy at the Collège de France.
In 1839, letters that he sent to France during his mission to North America were translated and edited by Thomas Gamaliel Bradford and published in the United States as, Society, manners and politics in the United States; being a series of letters on North America. Orestes Brownson reviewed the book and wrote that, "The work itself is highly important and interesting, and is well worth the perusal and even the study of every American citizen."
Chevalier was an early member of the Société d'économie politique organized in 1842 by Pellegrino Rossi. He was elected a député for the département of Aveyron in 1845, an appointment of Senator followed in 1860. In 1859, he was elected a foreign member of the Royal Swedish Academy of Sciences. Together with Richard Cobden and John Bright he prepared the free trade agreement of 1860 between the United Kingdom and France, which is still called the Cobden-Chevalier Treaty.
He died in Lodève.
- Des intérèts matériels en France, 1837
- Society, manners and politics in the United States; being a series of letters on North America, 1839
- Histoire et description des voies de communication aux États-Unis, 1840–42, 2 volumes
- Essais de politique industrielle, 1843
- Cours d'économie politique, 1842-44 u. 1850, 3 volumes
- L'isthme de Panama, suivi d'un aperçu sur l'isthme de Suez, 1844
- Les Brevets d'invention examinés dans leurs rapports avec le principe de la liberté du travail et avec le principe de l'égalité des citoyens, 1878
- Kirwan, Andrew Valentine. Modern France: Its Journalism, Literature, and Society. London, 1863, pp. 35-36.
- The Eclectic Magazine of Foreign Literature, Science, and Art, 1851, Volume 22, p. 515.
- Mignolo, Walter (2005). The Idea of Latin America. Oxford: Wiley-Blackwell. pp. 77–80. ISBN 978-1-4051-0086-1.
- McGuiness, Aims (2003). "Searching for 'Latin America': Race and Sovereignty in the Americas in the 1850s" in Appelbaum, Nancy P. et al. (eds.). Race and Nation in Modern Latin America. Chapel Hill: University of North Carolina Press, 87-107. ISBN 0-8078-5441-7
- Chasteen, John Charles (2001). Born in Blood and Fire: A Concise History of Latin America. W. W. Norton. 157. ISBN 0-393-97613-0.
- Michel Chevalier. Society, manners and politics in the United States; being a series of letters on North America. Boston: Weeks, Jordan & Co., 1839.
- The Boston Quarterly Review, 1840, Volume 3, p. 209.
- "APS Member History". search.amphilsoc.org. Retrieved 2021-04-16.
- Courtois, Alphonse (1846), "Notice historique", Annales de la Société d'économie politique (in French): 7–10, retrieved 2017-08-18
- Works by Michel Chevalier at Project Gutenberg
- Works by or about Michel Chevalier at Internet Archive
- Gallica includes works of Michel Chevalier
- Robinson, Moncure (1880). "Obituary Notice of Michel Chevalier". Proceedings of the American Philosophical Society. 19 (107): 28–37.
- Media related to Michel Chevalier at Wikimedia Commons
- Michael Chevalier: Society Manners and Politics in the United States