Marriner Eccles was a pivotal figure in shaping the US Federal Reserve's approach to economic policy, serving as its Chair from 1934 to 1948. This discussion highlights his advocacy for macroeconomic activism, emphasizing the importance of government intervention for financial security. Eccles's transformation from a traditional Republican to a Keynesian advocate is explored, showcasing how personal experiences influenced his economic beliefs. The podcast also delves into the significant impact of the Banking Act of 1935, underscoring Eccles's role in navigating the complexities of the New Deal.