Bachelor, Yale University, 1965. Master of Philisophy, Yale University, 1977. Doctor of Philosophy in American History, Yale University, 1978.
Carnegie teaching fellow in history Yale University, 1965-1966, lecturer history, 1966-1978, special assistant to president, 1970-1973, executive director Summer Plans, 1973-1976, associate provost, 1976-1978. Vice president planning University Chicago, 1978-1982. President, professor history New School Social Research, New York City, 1982—1999.
President The John D. & Catherine T. MacArthur Foundation, Chicago, 1999—2009. Franklin D. Roosevelt fellow Hunter College.
(An important book.)
Trustee New York State Commission Inc. Colleges Universities, Rockefeller Brothers Fund. Board directors American Ditchley Foundation, Foundation for a Civil Society.
Chairman Helsinki Watch Committee. Co-chair 14th St.-Union Square Local Development Corporation, International Committee Academy Freedom, Taynbee Foundation. Member American History Association, Council on Foreign Rels., Economics Club.
Married Cynthia Greenleaf, August 2, 1986.