As members of Harvard's economics department gathered last week at a party for professors who were retiring or departing, someone read a telegram from one of the guests of honor. The only clue it contained to the whereabouts of the missing professor, John Kenneth Galbraith, was the postscript: DICTATED IN BERLIN.
Despite his almost legendary absences from the campus, Galbraith, 66, is one of Harvard's best-known professors, and probably one of the world's most famous economists. He also emerged as a jet-set superstar who is as likely to be skiing in Gstaad, speech-making in...