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Oscar Ryszard Lange (born on July 27, 1904 in
Tomaszow Mazowiecki|Tomaszów Mazowiecki, Poland -
October 2, 1965 in London, United Kingdom) was a
Poland|Polish economist and diplomat.

He was an advocate of using market tools
(especially the neoclassical pricing theory) in
economic planning of socialism and communism. He
also worked on integrating classical
economics|classical and neoclassical economics
into a single theoretical structure. In terms of
economic philosophy, he is sometimes considered to
be a "market socialist". 

He is probably most known for his work On the
Economic Theory of Socialism published in 1936.

Lange was a professor at the University of Chicago
from 1938.

He served as a go-between for Franklin Delano
Roosevelt|F.D. Roosevelt and Joseph Stalin during
the post-war discussion on Poland.

He was Polish ambassador in United States|USA from
1946 to 1947.

One of the Polish universities is named after him:
Akademia Eknomiczna we Wroclawiu im. Oskara Lange.

poland-bio-stub

== Bibliography ==

* "The Determinateness of the Utility Function",
1934, RES.
* "Marxian Economics and Modern Economic Theory",
1935.
* "The Place of Interest in the Theory of
Production", 1936, RES
* "On the Economic Theory of Socialism, 1936, RES.
* "On the Economic Theory of Socialism, I & II",
1936, 1937.
* On the Economic Theory of Socialism, 1938.
* "The Rate of Interest and the Optimum Propensity
to Consume", 1938, Economica
* "Saving and Investment: Saving in process
analysis", 1939, QJE
* "Is the American Economy Contracting?", 1939,
AER
* "Complementarity and Interrelations of Shifts in
Demand", 1940, RES
* "Theoretical Derivation of the Elasticities of
Demand and Supply: the direct method", 1942,
Econometrica
* "The Foundations of Welfare Economics", 1942,
Econometrica
* "The Stability of Economic Equilibrium", 1942,
Econometrica.
* "Say's Law: A restatement and criticism", 1942,
in Lange et al., editors, Studies in Mathematical
Economics.
* "A Note on Innovations", 1943, REStat
* "The Theory of the Multiplier", 1943,
Econometrica
* "Strengthening the Economic Foundations of
Democracy", with Abba Lerner, 1944, American Way
of Business.
* Price Flexibility and Employment, 1944.
* "The Stability of Economic Equilibrium"
(Appendix of Lange, 1944)
* "The Rate of Interest and the Optimal Propensity
to Consume" 1944, in Haberler, editor, Readings in
Business Cycle Theory.
* "The Scope and Method of Economics", 1945, RES.
* "Marxian Economic in the Soviet Union", 1945,
AER
* "The Practice of Economic Planning and the
Optimum Allocation of Resources", 1949,
Econometrica
* "The Economic Laws of Socialist Society in Light
of Joseph Stalin's Last Work", 1953, Nauka Paulska
(repr. IER, 1954).
* The Political Economy of Socialism, 1958.
* Introduction to Econometrics, 1958.
* Political Economy, 1959.
* "The Output-Investment Ratio and Input-Output
Analysis", 1960, Econometrica
* Theories of Reproduction and Accumulation, 1961
* Economic and Social Essays, 1930-1960, 1961.
* Economic Development, Planning and Economic
Cooperation, 1963.
* Essays on Economic Planning, 1963.
* Optimal Decisions: principles of programming. 
1964.
* Wholes and Parts: A general theory of system
behavior. 1965 
* "The Computer and the Market", 1967, in
Feinstein, editor, Socialism, Capitalism and
Economic Growth.
* Introduction to Economic Cybernetics, 1965.


==External links ==
* http://cepa.newschool.edu/het/profiles/lange.htm
The History of Economic Thought: Oscar Lange


lived|b=1904|d=1965|key=Lange, Oskar