In this 2017 oral history, Benjamin “Ben” Rosen discusses his life and career. Rosen surveys his childhood and education in New Orleans, LA, and in particular the influence of his older brother, Harold Rosen, on his early life decisions and interests. Rosen followed his brother to Caltech, earning an undergraduate degree in electrical engineering. From Caltech, Rosen enrolled at Stanford to pursue an advanced engineering degree. After a sojourn working as an engineer and living on the beach in Malibu, he went East, first working as an engineer for Sperry Gyroscope, and then moving into the world of financial analysis by first earning an MBA at Columbia University. Rosen worked for some fifteen years as an analyst on Wall Street, first for Coleman and Company and then for Morgan Stanley. He covered the semiconductor industry.