Nobel laureate · birth-card coordinate

Tjalling C. Koopmans's Birth Card: The Jack of Hearts

1975 Economic Sciences

Born August 28, 1910

Died February 26, 1985

The Romantic Messenger

A birth card is a calendar coordinate for the month and day. It is not fortune-telling and does not predict a Nobel Prize.

In the record

Tjalling Charles Koopmans (August 28, 1910 – February 26, 1985) was a Dutch-American mathematician and economist. The birth-card coordinate for August 28 is the Jack of Hearts — a calendar position, not a forecast of the 1975 Economic Sciences prize.

Nobel Prize record

1975 — The Sveriges Riksbank Prize in Economic Sciences in Memory of Alfred Nobel

“for their contributions to the theory of optimum allocation of resources”

Prize motivation, NobelPrize.org

Shared with Leonid Vitaliyevich Kantorovich (8♦). The award was divided; this laureate's listed portion is 1/2.

93 other Economic Sciences laureates in this set carry a birth-card coordinate.

The Jack of Hearts coordinate

Tjalling C. Koopmans's birthday maps to the Jack of Hearts (The Romantic Messenger). Card Blueprints treats that as a 365-day coordinate: solar value = 55 − (2 × month + day), and the year is unused. It is not a prediction about a Nobel Prize and not a verdict on Tjalling C. Koopmans. The card's own language, quoted as system copy rather than biography: You bring a fresh read on love without leaving the room when it gets ordinary.

Live Jack of Hearts meaning page

Tjalling C. Koopmans in the public record

He was the joint winner with Leonid Kantorovich of the 1975 Nobel Memorial Prize in Economic Sciences for his work on the theory of the optimum allocation of resources. Koopmans showed that on the basis of certain efficiency criteria, it is possible to make important deductions concerning optimum price systems. Koopmans was born in 's-Graveland, Netherlands. He began his university education at the Utrecht University at seventeen, specializing in mathematics. Three years later, in 1930, he switched to theoretical physics. In 1933, he met Jan Tinbergen, the winner of the 1969 Nobel Memorial Prize in Economics and moved to Amsterdam to study mathematical economics under him. In addition to mathematical economics, Koopmans extended his explorations to econometrics and statistics. In 1936, he graduated from Leiden University with a PhD, under the direction of Hendrik Kramers.

Summarised from the lead section of the Wikipedia article Tjalling Koopmans (CC BY-SA 4.0). No biographical facts were written for this page beyond that article.

Where the record meets the Jack of Hearts

A card is a calendar coordinate, not a cause. What follows sets one line of the card's own published language beside one sentence of the sourced record, paired by a documented rule. It is a resemblance offered for the reader to weigh — not a claim about Tjalling C. Koopmans, and not a forecast of a Nobel Prize.

Cards in Tjalling C. Koopmans's fixed path

Birth card and karma

Life Spread (Mercury → Result / Cosmic Reward)

Planetary ruling card, karma and Life Spread

Birth card from the month and day. Karma cards are fixed to the birth card. The planetary ruling card comes from the sun sign's ruling planet — the signs with two rulers carry two. The Life Spread is the birth card's fixed row of nine in the Life Spread — the cards that colour each 52-day period for life. Planetary period and long-range cards move year by year and are not shown on a static page.

Innovating how relationships can work

J♥ — Birth Card, from the published Jack of Hearts meaning

The work for which the prize was awarded focused on activity analysis, the study of interactions between the inputs and outputs of production, and their relationship to economic efficiency and prices.

Paired on shared wording: relationship, work.

Also on the record

  1. The title of the thesis was "Linear regression analysis of economic time series".
  2. He also worked for the Economic and Financial Organization of the League of Nations.
  3. Koopmans moved to the United States in 1940.
  4. There, he worked for a while for a government body in Washington, D.C., where he published on the economics of transportation focusing on optimal routing, then moved to Chicago where he joined a research body, the Cowles Commission for Research in Economics, affiliated with the University of Chicago.

Other laureates with this card

FAQ

What is Tjalling C. Koopmans's birth card?
The Jack of Hearts. August 28 maps to that card through the public Card Blueprints formula. The year of birth is not used.
Does a birth card predict a Nobel Prize?
No. These pages are coordinates, not fortune-telling. A birth card names a calendar day in a 52-card year. It does not forecast prizes, character, or fate.
Where do Tjalling C. Koopmans's dates come from?
Birth date 1910-08-28 is the Nobel Prize API v2.1 day-precision date, verified against Wikidata P569 (CC0, day precision, Gregorian preferred). The two sources match. Year-only Nobel dates and Nobel↔Wikidata conflicts are dropped, not guessed. Page hooks and evidence come from the Wikipedia REST summary (CC BY-SA 4.0).

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Sources: Nobel Prize API v2.1 (laureate 687) + Wikidata CC0 (Q110968) + Wikipedia CC BY-SA 4.0 (Tjalling Koopmans). Birth date 1910-08-28 is the Nobel day-precision date, verified against Wikidata P569 (match).