EI's Iain Martin is joined by Kwasi Kwarteng, historian and former Chancellor of the Exchequer, to discuss the turbulent life of the 18th-century financial speculator John Law, whose innovative ideas were credited with bringing Ancien Régime France to the brink of ruin. There are echoes of what happened when the Truss government tried its own financial experiment, he acknowledges. Image: A cartoon of John Law (1671–1729), the Scottish economist who was appointed Controller General of Finances of France under King Louis XV. Credit: PRISMA ARCHIVO / Alamy Stock Photo