The Economics of Owning a Medieval Bank | Simon's View

Hey, Simon here! What did it actually take to run a bank in medieval Europe? At first, I assumed the answer was fairly obvious. Take someone’s money, lend it to somebody else, charge interest, and keep the difference. Except there’s a problem: in the medieval Christian world, lending money at guaranteed interest could run directly into the Church’s prohibition against usury. So how did bankers actually make money? That question led me to the Medici Bank — and to a financial system that turned out to be much stranger than I expected. In this video, I’m looking at bills of exchange, foreign currencies, papal money, international branches, partnership structures, accounting, and the enormous risks of lending to kings who could not exactly be threatened with foreclosure. Because the Medici weren’t simply keeping gold in a vault. They were building a network that could make money move across Europe without the coins themselves making the journey. And that made me wonder what a medieval bank was really selling. Credit? Exchange? Or something much more valuable: trust. Because a successful medieval banker wasn’t necessarily the man who owned the most gold. He was the man everyone else was willing to trust with theirs. Sources & Further Reading: • Raymond de Roover — The Rise and Decline of the Medici Bank, 1397–1494 • Richard A. Goldthwaite — The Medici Bank and the World of Florentine Capitalism • George Holmes — How the Medici Became the Pope’s Bankers • Raymond de Roover — Money, Banking and Credit in Mediaeval Bruges • Florence Edler de Roover — Francesco Sassetti and the Downfall of the Medici Banking House • Research on medieval bills of exchange, foreign exchange, usury, Florentine merchant banking, papal finance, and Renaissance accounting