The chairman of the Securities and Exchange Commission, as of this printing, appointed by President George W. Bush in February, 2003. He was a co-founder in 1959 of Donaldson, Lufkin & Jenrette, an investment bank that was purchased by Credit Suisse First Boston in 2001. He was a founder of Yale UniversityÂ’s Graduate School of Management, served as its first dean, and held a tenured chair there from 1975 to 1980.