TJALLING KOOPMANS, WON A SHARE OF '75 NOBEL PRIZE IN ECONOMICS
Author: Associated Press
Date: Friday, March 1, 1985
Page: 25
Section: OBITUARY
Tjalling C. Koopmans, a winner of the 1975 Nobel Prize in economics and
retired professor at Yale University, died Tuesday in Yale-New Haven Hospital
after a brief illness. He was 74.
Mr. Koopmans was internationally known for his work in economic theory and
mathematics and shared the Nobel Prize in 1975 with Leonid Kantrovich of the
Soviet Union. The two men had worked independently in developing econometric
models that could be applied to transportation unit scheduling.
Born in The Netherlands on Aug. 28, 1910, Mr. Koopmans received his
master's degree from the University of Utrecht in 1933 and his doctorate from
the University of Leiden in 1936.
During World War II, he worked in Washington as a statistician on wartime
shipping. He realized there was a need to develop mathematical models for
predicting the flow of goods and the utility of ships and other facilities. It
was the beginning of the interest in mathematical economics and theory that
became the focus of his career.
Mr. Koopmans was a research associate at the University of Chicago from
1944 until he joined Yale in 1955 as a full professor. He became Yale's first
Alfred Cowles Professor of Economics when the chair was endowed in 1967. He
also served as director of the Cowles Foundation - the research arm of Yale's
economics department - from 1961 to 1967.
He was the author of several books and coedited many others.
He leaves his wife, Truus Wanningen Koopmans of Hamden, Conn.; a son,
Henry W. Koopmans of Calgary, Alberta; two daughters, Anne K. Frankel of Iowa
City, Iowa, and Helen K. Weinert of Medfield, Mass.; and a brother.
A memorial service will be conducted at 2 p.m. Tuesday at a site to be
determined on the Yale campus.
AG1950;02/28,15:46 LDRISC;03/01,17:54 KOOPMA01
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