Jacob Viner, 1892–1970, American economist, b. Montreal. He taught at the Univ. of Chicago (1919–46) and Princeton (1946–60). A specialist on the subject of international trade, Viner was an adviser on trade issues to the U.S. Treasury (1934–37)and the State Dept. (1943–52). Viner's work ranges from specialized writings on the theory of costs in The Long View and the Short (1931), in which he laid out the envelope cost curve, to such histories of economic thought as Studies in the Theory of International Trade (1937) and Essays on the Intellectual History of Economics (ed. by Douglas A. Irwin, 1991).