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J.-B. Say, in full Jean-Baptiste Say, (born January 5, 1767, Lyon, France—died November 15, 1832, Paris), French economist, best known for his law of markets, which postulates that supply creates its own demand. After completing his education, Say worked briefly for an insurance company and then as a journalist.

Jean-Baptiste Say was a French classical liberal political economist who greatly influenced neoclassical economic thought. Say was influenced by Adam Smith and his book, The Wealth of Nations....

Jean-Baptiste Say (January 5, 1767 – November 15, 1832) was a French economist and businessman. He had classically liberal views and argued in favor of competition, free trade, and lifting restraints on business. His most significant contribution is the thesis, known as "Say's Law," that supply creates its own demand.

J ean-Baptiste Say was born in Lyons on January 5, 1767 and died in Paris on November 15, 1832. Say was the leading French political economist in the first third of the 19th century.

Jean Baptiste Say, a classical French economist, studied the nature of markets in his 1803 book “Treatise on Political Economy” and put forth the view that supply creates its own demand and that economic agents must first engage in production before they can demand goods and services in the market.

Morgan Rose, Implications of Costly Information, at Econlib. Jean-Baptiste Say, Letters to Mr. Malthus and a Catechism of Political Economy, at the Online Library of Liberty. The Online Library of Liberty’s Collection on The Classical School of Political Economy.

The French economist Jean Baptiste Say (1767-1832), one of the founders of the classical school, is best known for his law of markets. He was the first academic teacher of economics in France. Jean Baptiste Say was born on Jan. 5, 1767, in Lyons of a Protestant merchant family.

Jean-Baptiste Say was a liberal French economist and businessman who argued in favor of competition, free trade and lifting restraints on business. He is best known for Say's law—also known as the law of markets—which he popularized.