Who was known for his work i finance?

One prominent figure known for his work in finance is John Maynard Keynes, an influential economist whose ideas fundamentally changed the field during the 20th century. He is best known for advocating for government intervention in the economy to manage demand and stabilize economic cycles, particularly during downturns. His theories laid the groundwork for modern macroeconomic policy and have had a lasting impact on financial practices and government strategies worldwide.