Economic Models - Convex Optimization

Tom Oskar Martin Kronsjo
students through this generosity. He had the ability to see the possibilities
in any situation and taught his students to use them.
Tom Kronsjo’s research interests were wide and multifaceted. One
area of his interest was planning and management at various levels of
the national economy. He developed important methods of decomposition
of large economic systems, which were considered by his contemporaries
a major contribution to the theory of mathematical planning and
programming. These results were published in 1972 in a book “Economics
of Foreign Trade” written jointly by Tom Kronsjo, Dr. Z. Zawada, and
Professor J. Krynicki, both of the Warsaw University, and published in
Poland.
In 1972, Tom Kronsjo was invited as a Visiting Professor of Economics
and Industrial Administration at Purdue University, Purdue, USA.
In 1974, Tom Kronsjo was a Distinguished Visiting Professor of Economics,
at San Diego State University, San Diego, USA.
In the year 1975, Tom Kronsjo found himself as a Senior Fellow in the
Foreign Policy Studies Program of the Brookings Institution, Washington,
D.C., USA. In collaboration with three other scientists, he was engaged
in the project entitled “Trade and Employment Effects of the Multilateral
Trade Negotiations”. In the words of his colleagues, Tom Kronsjo made an
indispensable contribution to the project. Tom Kronsjo’s ingenious, tireless,
conceptual, and implementing efforts made it possible to carry out
calculations involving millions of pieces of information on trade and tariffs,
permitting the Brookings model to become the most sophisticated and comprehensive
model available at the time for investigation into effects of the
current multilateral trade negotiations. In addition, Tom Kronsjo conceived
and designed the means for implementing, perhaps the most imaginative
portion of the project, the calculation of “optimal” tariff cutting formulas
using linear programming and taking account of balance of payments and
other constraints on trade liberalization. A monograph on “Trade, Welfare,
and Employment Effects of Trade Negotiations in the Tokyo Round” by
Dr. W.R. Cline, Dr. Noboru Kawanabe, Tom Kronsjo, and T. Williams was
published in 1978.
Tom Kronsjo’s general interests have been in the field of conflicts and
co-operation, war and peace, ways out of the arms race, East-West joint
enterprises and world development. He published papers on unemployment,
work incentives, and nuclear disarmament.
Tom Kronsjo served as one of the five examiners for one of the Nobel
prizes in economic sciences. From time to time, he was invited to nominate
a candidate or candidates for the Nobel prize in economics.
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