What is Tjalling C. Koopmans birthday?

Tjalling C. Koopmans was born at 1910-08-28

When was Tjalling C. Koopmans died?

Tjalling C. Koopmans was died at 1985-02-26

Which age was Tjalling C. Koopmans died?

Tjalling C. Koopmans was died at age 74

Where is Tjalling C. Koopmans's birth place?

Tjalling C. Koopmans was born in Graveland, Netherlands

What is Tjalling C. Koopmans nationalities?

Tjalling C. Koopmans's nationalities is Dutch

How famous is Tjalling C. Koopmans?

Tjalling C. Koopmans is famouse as Economist

Tjalling C. Koopmans - Intellectuals & Academics, Timeline and Childhood

Home › Dutch › Tjalling C. KoopmansAugust 28, 1910303 views

Tjalling C. Koopmans Biography Stories Embed this Biography stories

Table of contents

Personal Details
Photo
Overview
Awards
Timeline
FAQ

Dutch Intellectuals & Academics Economists Virgo Celebrities

Tjalling C. Koopmans's Personal Details

Tjalling C

Information	Detail
Birthday	August 28, 1910
Died on	February 26, 1985
Nationality	Dutch
Famous	Intellectuals & Academics, Economists
Birth Place	Graveland, Netherlands
Gender	Male
Sun Sign	Virgo
Born in	Graveland, Netherlands
Famous as	Economist
Died at Age	74

// Famous Economists

Bertil Gotthard Ohlin

Bertil Gotthard Ohlin was a famous Swedish economist. This biography profiles his childhood, family life & achievements.

Emily Greene Balch was an American economist, sociologist and pacifist who won the 1946 Nobel Peace Prize. This biography of Emily Greene Balch provides detailed information about her childhood, life, achievements, works & timeline.

Paul Samuelson

Nobel laureate Paul Anthony Samuelson is referred to as the ‘Father of Modern Economics’. This biography profiles his childhood, life, career, achievements and interesting facts about him.

Who is Tjalling C. Koopmans?

Tjalling C. Koopmans was a Dutch American economist and mathematician who, along with economist Leonid Kantorovich, was the joint recipient of the 1975 Nobel Memorial Prize in Economic Sciences. The duo won the award for their contributions to the theory of optimum allocation of resources. Though a graduate in mathematics and physics, Tjalling C. Koopmans grew interested in economics under the influence of economist, Jan Tinbergen, and subsequently earned a PhD in Economics from the University of Leiden. In 1940, he moved to USA, where he worked as a statistician with British Merchant Shipping Mission and thereby got the opportunity to devise models that reorganize shipping routes along with reducing associated costs and achieving results. As part of his research, he developed a rational method called as ‘Activity Analysis’. He was also one among the first persons to invent linear programming during his period. Later, he was part of the Cowles Commission at the University of Chicago between 1944 and 1955 and with the shifting of the Cowles Foundation to Yale University, he became a professor of economics at the University. He retired from the Yale University in 1981. He also served as the president of the American Economic Association in 1981.

// Famous Intellectuals & Academics

Bertil Gotthard Ohlin

Bertil Gotthard Ohlin was a famous Swedish economist. This biography profiles his childhood, family life & achievements.

Emily Greene Balch

Martin Buber

One of the greatest philosophers to have ever walked on earth, Martin Buber contributions to philosophy is a long-standing one. Explore all about his profile, childhood, life and timeline here.

Childhood & Early Life

Tjalling C. Koopmans was born on 28 August 1910 at ’s-Graveland in Netherlands. His parents, Sjoerd Koopmans and Wijtske van der Zee, were trained school teachers and his father was the headmaster of the (Protestant) ‘School with the Bible’.

He had two older brothers: Jan Koopmans, who grew up to become minister of the Dutch Reformed Church, and Hendrik Koopmans, who became a qualified chemical engineer.

At the age of 14, Tjalling Koopmans was awarded a stipend by the St. Geertruidsleen of Wijmbritseradeel in the Dutch province of Friesland. The stipend helped him to a great extent in pursuing higher studies.

In 1927, he enrolled into the Utrecht University to pursue studies in mathematics. However, after completing three years he shifted to theoretical physics.

In 1933, Tjalling got the opportunity to meet Dutch economist, Jan Tinbergen, and Tjalling shifted to Amsterdam to study mathematical economics under Tinbergen’s guidance. He was also interested in statistics and econometrics. He completed his PhD in Economics from University of Leiden in 1936.

In 1934, he published the Koopmans’ theorem that states that in a case of restricted Hartree–Fock theory, the first ionization energy of a molecular system is equal to the negative of the orbital energy of the highest occupied molecular orbital. However, later he shifted his field of interest from quantum chemistry to economics.

Career

Between 1936 and 1938, he worked at the School of Economics at Rotterdam as a substitute lecturer in place of Jan Tinbergen who was appointed to the Financial Section of the League of Nations to work on model of business cycles in the United States.

In 1938, Tjalling Koopmans was asked to work in Geneva and prepare a similar business cycle model for the United Kingdom. However, with the outbreak of World War II, the project was terminated. During his time in Geneva, he understood the concept regarding economics of welfare and the issues associated with optimum population, from economist James Meade

In 1940, he moved to United States along with his family. He was first employed with British Merchant Shipping Mission at Washington D.C where he published information on the economics of transportation with attention to reorganizing shipping to reduce transportation costs.

He achieved satisfactory results by solving a few equations that included the price of materials at the point of origin and the cost towards transporting the goods using different routes. He formulated a mathematical representation of the issue that connected to the required equations.

In 1944, he was invited to join the Cowles Commission for Research in Economics, affiliated with the University of Chicago. There was immense scope for research with focus on creating econometric models by combining knowledge of mathematical modeling, economic theory and statistics.

During this time he pioneered in-depth studies in the branch of operational research called ‘Activity Analysis’. The same year he wrote the paper titled ‘Exchange ratios between cargoes on various routes’. However the work was published much later in 1970, as part of a collection of 28 papers authored by him.

In 1948 he was appointed as the Director of the Cowles Commission and held the post for six years. In 1955, the Cowles Commission was moved to Yale University and renamed Cowles Foundation. Tjalling Koopmans along with five other staff members accepted positions at Yale University.

In 1961, he had a second stint as the Director of Cowles Commission and worked in this capacity for six years.

In 1965, he, along with David Cass, worked on the ‘Ramsey growth model’ of Frank P. Ramsey. The Ramsey–Cass–Koopmans model attempts to focus on future economic growth and excludes any sort of market disturbances. This model has further been extended by researchers and is known as the ‘real business cycle theory’.

He joined Yale University as professor in economics and continued to work there until his resignation in 1981. In 1981, he was elected as the President of the American Economic Association.

Majority of his works are available as published papers and articles. His important works include ‘Serial correlation and quadratic forms in normal variables’ (1942), ‘On the Description and Comparison of Economic Systems’ (1971) and ‘Additively decomposed quasiconvex functions’ (1982).

Major Works

Tjalling Koopmans was an economist whose works focused on the optimal allocation of resources in order to successfully attain results at an affordable cost. He is regarded the pioneer of this model called ‘Activity Analysis‘. He is also known as one of the inventors of linear programming.

Awards & Achievements

In 1975, Tjalling C. Koopmans and Leonid Kantorovich were jointly awarded the Nobel Memorial Prize in Economic Sciences "for their contributions to the theory of optimum allocation of resources"

He was elected to the prestigious National Academy of Sciences and American Academy of Arts and Sciences. He also served as the President of the Econometric Society and the American Economic Association.

Personal Life & Legacy

He was a Dutch citizen by birth and became a naturalized citizen of the United States in 1946, six years after shifting to USA.

He married economist, Truus Wanningen, in 1936. The couple had three children, a son named Henry W. Koopmans and daughters, Anne Koopmans Frankel and Helen Koopmans Weinert. All his children chose careers related to life sciences.

He suffered a stroke and died on 26 February 1985 at New Haven, Connecticut. He was 74 years at the time of his death.

// Famous Dutch peoples

Nikkie De Jager

Check out all that you wanted to know about Nikkie De Jager, the famous Dutch Makeup artist; her birthday, her family and personal life, her boyfriends, fun trivia facts and more.

Romee Strijd

Romee Strijd is a Dutch model, also known as a 'Victoria's Secret Angel.' Check out this biography to know about her family, personal life, including her age, birthday, etc.

Nisrina Sbia

Nisrina Sbia is a social media influencer and model who rose to fame and has made it big on Instagram. Check out this biography to know about her birthday, childhood, family life, achievements and fun facts about her.

Tjalling C. Koopmans's awards

Year	Name	Award
Other
0	Nobel Memorial Prize in Economic Sciences

Tjalling C. Koopmans biography timelines

// 28th Aug 1910
Tjalling C. Koopmans was born on 28 August 1910 at ’s-Graveland in Netherlands. His parents, Sjoerd Koopmans and Wijtske van der Zee, were trained school teachers and his father was the headmaster of the (Protestant) ‘School with the Bible’.
// 1927
In 1927, he enrolled into the Utrecht University to pursue studies in mathematics. However, after completing three years he shifted to theoretical physics.
// 1933 To 1936
In 1933, Tjalling got the opportunity to meet Dutch economist, Jan Tinbergen, and Tjalling shifted to Amsterdam to study mathematical economics under Tinbergen’s guidance. He was also interested in statistics and econometrics. He completed his PhD in Economics from University of Leiden in 1936.
// 1934
In 1934, he published the Koopmans’ theorem that states that in a case of restricted Hartree–Fock theory, the first ionization energy of a molecular system is equal to the negative of the orbital energy of the highest occupied molecular orbital. However, later he shifted his field of interest from quantum chemistry to economics.
// 1936 To 1938
Between 1936 and 1938, he worked at the School of Economics at Rotterdam as a substitute lecturer in place of Jan Tinbergen who was appointed to the Financial Section of the League of Nations to work on model of business cycles in the United States.
// 1936
He married economist, Truus Wanningen, in 1936. The couple had three children, a son named Henry W. Koopmans and daughters, Anne Koopmans Frankel and Helen Koopmans Weinert. All his children chose careers related to life sciences.
// 1938
In 1938, Tjalling Koopmans was asked to work in Geneva and prepare a similar business cycle model for the United Kingdom. However, with the outbreak of World War II, the project was terminated. During his time in Geneva, he understood the concept regarding economics of welfare and the issues associated with optimum population, from economist James Meade
// 1940
In 1940, he moved to United States along with his family. He was first employed with British Merchant Shipping Mission at Washington D.C where he published information on the economics of transportation with attention to reorganizing shipping to reduce transportation costs.
// 1944
In 1944, he was invited to join the Cowles Commission for Research in Economics, affiliated with the University of Chicago. There was immense scope for research with focus on creating econometric models by combining knowledge of mathematical modeling, economic theory and statistics.
// 1946
He was a Dutch citizen by birth and became a naturalized citizen of the United States in 1946, six years after shifting to USA.
// 1948 To 1955
In 1948 he was appointed as the Director of the Cowles Commission and held the post for six years. In 1955, the Cowles Commission was moved to Yale University and renamed Cowles Foundation. Tjalling Koopmans along with five other staff members accepted positions at Yale University.
// 1961
In 1961, he had a second stint as the Director of Cowles Commission and worked in this capacity for six years.
// 1965
In 1965, he, along with David Cass, worked on the ‘Ramsey growth model’ of Frank P. Ramsey. The Ramsey–Cass–Koopmans model attempts to focus on future economic growth and excludes any sort of market disturbances. This model has further been extended by researchers and is known as the ‘real business cycle theory’.
// 1970
During this time he pioneered in-depth studies in the branch of operational research called ‘Activity Analysis’. The same year he wrote the paper titled ‘Exchange ratios between cargoes on various routes’. However the work was published much later in 1970, as part of a collection of 28 papers authored by him.
// 1975
In 1975, Tjalling C. Koopmans and Leonid Kantorovich were jointly awarded the Nobel Memorial Prize in Economic Sciences "for their contributions to the theory of optimum allocation of resources"
// 1981
He joined Yale University as professor in economics and continued to work there until his resignation in 1981. In 1981, he was elected as the President of the American Economic Association.
// 26th Feb 1985
He suffered a stroke and died on 26 February 1985 at New Haven, Connecticut. He was 74 years at the time of his death.

// Famous Virgo Celebrities peoples

Tjalling C. Koopmans's FAQ

What is Tjalling C. Koopmans birthday?
Tjalling C. Koopmans was born at 1910-08-28
When was Tjalling C. Koopmans died?
Tjalling C. Koopmans was died at 1985-02-26
Which age was Tjalling C. Koopmans died?
Tjalling C. Koopmans was died at age 74
Where is Tjalling C. Koopmans's birth place?
Tjalling C. Koopmans was born in Graveland, Netherlands
What is Tjalling C. Koopmans nationalities?
Tjalling C. Koopmans's nationalities is Dutch
What is Tjalling C. Koopmans's sun sign?
Tjalling C. Koopmans is Virgo
How famous is Tjalling C. Koopmans?
Tjalling C. Koopmans is famouse as Economist

Tjalling C. Koopmans - Intellectuals & Academics, Timeline and Childhood