Bachelor, University Lausanne. Bachelor, University Berne, 1941. DEcons with honors, University Berne, 1972.
Master of Arts, Harvard University, 1942. Doctor of Philosophy, Harvard University, 1945.
Executive Secretary/Deputy Director-General IAEA, United Nations, New York, then Vienna 1957-1961. U°vt. Delegate (Amb.j for trade negotiations, Berne 1961-1966. State Secretary, Federation Office of Foreign Economics Affairs, Berne 1966-1984.
Chairman Board UNCTAD, Geneva 1967. Chairman Executive Committee in Special Session of Organisation for Economic Co-operation and Development, Paris 1973-1980. Head Swiss Delegate to Conference on Institute Economics Co-operation (N.-S. Dialogue, Paris) and to UNCTAD Conferences, Nairobi and Manila 1979.
Chairman Board IMEDE Business School, Lausanne 1984-1989. Chairman Board, Nestle S.A. 1989, Vevey. Honorary Professor, of Institute Economics, University of Berne.
Honorary D.Econ. (Beme). John Harvard Fellowship.
Member Conference Board, from 1985. Chairman board trustees Art Institute Berne, 1975—1986. Board directors Kustmuseum, Berne.
Trustee Museum Contemporary Art, Basle.
Married Erna Ryffel Jolles, May 28, 1956. Children: Alexander, Claudia, Adrian.