A talented teacher, inspiring mentor, and respected scholar, Professor Stockman made major contributions to the fields of international finance and macroeconomics, publishing seminal papers on exchange rates and international business cycles. He is remembered by colleagues as a man whose infectious enthusiasm for economics was characteristic of his general approach to life.
There is more here. I met Stockman once and was very impressed with him and his ability to think like an economist. He was a prominent economist but I think he was nonetheless an underrated economist.