Richard Cantillon

Richard Cantillon was a highly successful banker and merchant from the early 18th century. He is most famous for writing a book titled *Essai Sur La Nature Du Commerce En Général*. This work, often called the *Essai*, is considered the first complete treatise on economic theory. Many historians view it as the "cradle of political economy," meaning it helped give birth to the modern study of economics.

Although he wrote it around 1730, the book was not published until 1755. It was later rediscovered in the late 19th century by the economist William Stanley Jevons. Since then, it has been recognized for its deep influence on the science of economics.

Cantillon's life was marked by significant business moves and political connections. He was likely born in County Kerry, Ireland, during the 1680s. In the first decade of the 1700s, he moved to France and became a citizen. By 1711, he worked for James Brydges, the British Paymaster General. This role took him to Spain, where he organized payments for prisoners of war. Through Brydges, Cantillon built a network of powerful business and political contacts.

After his time in Spain, Cantillon returned to Paris to enter the banking industry. He initially worked for a cousin who ran a Parisian branch of a family bank. In 1716, with financial backing from James Brydges, Cantillon bought the bank and became its owner. He specialized in transferring large sums of money between Paris and London. This period of his life allowed him to amass great wealth. However, his career also brought him into contact with the volatile world of financial speculation.

Cantillon became deeply involved with John Law and the Mississippi Company. John Law used a theory to suggest that increasing the money supply would boost productivity. He founded the Banque Générale and gained a monopoly over French territories in North America. Law then created a financial speculative bubble by selling shares of the Mississippi Company. This bubble was fueled by the bank's ability to issue bank notes to investors. Cantillon recognized that Law's scheme was unsound and bound to fail.

Despite his doubts, Cantillon acted as a savvy investor during this period. He bought Mississippi Company shares early and sold them at high prices for a massive profit. He also served as John Law's personal banker for a time. This success caused intense jealousy and friction with Law. Law even threatened to send Cantillon to the Bastille prison. In response, Cantillon stayed in France and even formed a private company with Law and Joseph Gage to finance North American real estate.

When the Mississippi bubble eventually collapsed, Cantillon's wealth became a source of great conflict. Many of his debtors lost everything and blamed him for his profits. He faced constant legal battles, criminal charges, and even plots against his life. To protect his assets from high French taxes, he sent his profits to London and Amsterdam. These struggles with debtors and the law continued until his death in 1734. His life shows the extreme risks and consequences present in early modern finance.

The *Essai* introduced several groundbreaking ideas to the field of economics. Cantillon used a distinctive cause and effect methodology. He used the term "natural" to describe the underlying relationships between economic actions. He was one of the first to define the entrepreneur as a person who bears risk. He also contributed to the development of spatial economics and monetary theories.

His work was influenced by the English economist William Petty, who also studied how land and labor create value.

Cantillon's intellectual legacy is vast and reaches through many generations of thinkers. His systematic approach helped shape the physiocrat and classical schools of thought. His ideas influenced many famous economists, including Adam Smith and Anne Turgot. Other thinkers like Jean-Baptiste Say and Frédéric Bastiat also built upon the foundations he laid. By moving beyond the simple mercantilist ideas of his time, Cantillon helped transform economics into a structured science.