Edmund Phelps.

Edmund Strother Phelps is an American economist best known for his research on the sources of economic growth. He sparked a wave of research by economists through his demonstration of the golden rule savings rate, and his studies led to the development of the natural rate of unemployment. He received his Ph.D. from Yale and later founded the Center of Capitalism and Society at Columbia. Phelps’s current works involve the benefits and sources of a country’s structural dynamism. He received the Nobel prize in 2006 “for his analysis of intertemporal tradeoffs in macroeconomic policy”.

Edmund Phelps (2006)

Edmund Phelps: How Economies Flourish – EA Magazine (2015)