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I was born in Lyon, France on the 5th of January 1767 to a middle-class family of French protestant textile merchants.

Most of my childhood was spent moving across Europe. I spent the majority of this time in Geneva, Switzerland and London, England. I finished my education at a private school in Croydon, a large town in south London.

After finishing my education I was employed by a merchant in London, until two years later in 1787 when the merchant died. I then decided to move back to Paris and found work at an insurance company run by Étienne Clavière. Like myself, Clavière was a protestant and played a major role in shaping me as a person. Clavière lent me his copy of Adam Smith's 'Wealth of Nations' which greatly changed and shaped my notions on economics, Clavère was also the person who encouraged me to study political economy.

I was very happy when the French revolution started and I began to write in a pamphlet defending free press. This garnered me some notoriety and I later got hired for the magazine 'Le Courrier de Provence'.

I soon after volunteered as a soldier in the Parisian military company and saw service in Champagne between 1792-1793. Upon my return from service, I married Julie Jourdel-Deloches the daughter of a lawyer.

In 1794 I became a founder and a managing editor of 'La Décade philosophique' which talked about themes and subjects ranging from economical to philosophical.

Some time later in 1799 I was appointed to the tribunate, specifically the financial section, which reviewed legislation before being put to vote. I stayed in the tribunate up until 1804 when I got removed, as I did not want to forgo my beliefs for those of napoleon's.

After my dismissal from the tribunate I set up a cotton spinning mill, that ended up being pretty successful. After eight good years and around 400-500 people employed I chose to sell the business and move back to Paris.

A few years later in 1814 the government employed me to travel to England to analyse the state of their economy and why it was doing so well. After round a year in England I returned home in 1815 and published my finding and research I had done.

It was then in 1816 when I finally was able to start teaching economics, at first I was invited to the Athénée to give a course of lectures. Later then in 1819 I was appointed as Chair of Industrial Economy at the Conservatoire National des Arts et Metiers and finally as the first chair in political economy at the Collège de France.

I spent my final years teaching and publishing some works up until I died on November 15th, 1832 Paris, France.

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Say's Law
I am most famous for Say's law which states that the income generated by past production and sale of goods is the source of spending that creates demand to purchase current production. Some people just simplify this to supply creates demand which can cause confusion. What I'm really trying to state is that the ability to buy something depends on the ability to produce something that creates income, therefor to have the means to buy, one must first have the means to produce. I am thus implying that having production will lead to income and be the key to economic growth.

Implications

1. More producers and more production of varying products will help to grow the economy, this is due to the fact that more producers leads to more production leading to more income. Second more of a variation in products leads to more avenues of revenue which lead to further increased income.

2. The success of one producer/industry will lead to the success of others and vice versa. This means that all economic sectors are linked and have an adverse effect on one another.

3. Encouraging consumption will eventually be harmful. By constantly consuming, consumption will build up and take away from production which will decrease economic growth.

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I personally was majorly influenced by Adam Smith and in particular his book 'The Wealth of Nations'. This book and Smith's work had a profound effect on me and shaped my view on economics.

I myself influenced future economists, such as Frédéric Bastiat who was a French economist and writer. Bastiat would go onto develop the concept of opportunity cost and publish many works of his own. Another man who I influenced was Marie-Esprit-Léon Walras, he was a French economist, mathematician and Georgist. He formulated the marginal theory of value and pioneered the development of general equilibrium theory.

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In my time I had many publications the majority were extra additions and editions of my already published work. My two most notable pieces of work are 'A Treatise on Political Economy' and 'Letters to Thomas Robert Malthus on Political Economy and Stagnation of Commerce'.

A Treatise on Political Economy
I wrote this book in a difficult period, where ideas about free speech and liberal thoughts were being challenged. This is particularly relevant as in this book I talk about political economy which was on the decline and being suppressed, political economy explores the ways in which political systems and economies interact and shape each other. I explore this concept deeply discussing; global trade, free market and government involvement in economies among other things. I hope that this will appeal to those working or interested in business, philosophy and politics.

Letters to Thomas Robert Malthus on Political Economy and Stagnation of Commerce
In this piece of work I am defending the laws of production from Thomas Robert Malthus' criticisms, I later decided to publish these letters. My main purpose of writing these was to defend against Malthus' claims against the laws of production but later turn into more of an explanation and exploration of these laws, which warranted it being published.

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“Economist Jean-Baptiste Say - Biography, Theories and Books.” Famous Economists, https://www.famouseconomists.net/jean-baptiste-say.

Hart, David M., et al. “Life and Works of Jean-Baptiste Say.” Econlib, 18 Oct. 2020, https://www.econlib.org/library/Say/SayBio.html.

“J.-B. Say.” Encyclopædia Britannica, Encyclopædia Britannica, Inc., https://www.britannica.com/biography/J-B-Say.

“Jean-Baptiste Say, 1767-1832.” Jean-Baptiste Say, The History of Economic Thought, https://www.hetwebsite.net/het/profiles/say.htm.

Team, The Investopedia. “Say's Law of Markets Theory and Implications Explained.” Investopedia, Investopedia, 15 Sept. 2022, https://www.investopedia.com/terms/s/says-law.asp.