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Bruno de Finetti was born on 13 June, 1906 in Innsbruck, Austria-Hungary, is an Italian mathematician (1906–1985). Discover Bruno de Finetti's Biography, Age, Height, Physical Stats, Dating/Affairs, Family and career updates. Learn How rich is he in this year and how he spends money? Also learn how he earned most of networth at the age of 79 years old?

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Age 79 years old
Zodiac Sign Gemini
Born 13 June 1906
Birthday 13 June
Birthplace Innsbruck, Austria-Hungary
Date of death 20 July, 1985
Died Place Rome, Italy
Nationality Hungary

We recommend you to check the complete list of Famous People born on 13 June. He is a member of famous mathematician with the age 79 years old group.

Bruno de Finetti Height, Weight & Measurements

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Bruno de Finetti Net Worth

His net worth has been growing significantly in 2023-2024. So, how much is Bruno de Finetti worth at the age of 79 years old? Bruno de Finetti’s income source is mostly from being a successful mathematician. He is from Hungary. We have estimated Bruno de Finetti's net worth, money, salary, income, and assets.

Net Worth in 2024 $1 Million - $5 Million
Salary in 2024 Under Review
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Source of Income mathematician

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Timeline

1906

Bruno de Finetti (13 June 1906 – 20 July 1985) was an Italian probabilist statistician and actuary, noted for the "operational subjective" conception of probability.

1920

De Finetti developed his ideas on subjective probability in the 1920s independently of Frank P. Ramsey.

Still, according to the preface of his "Theory of Probability", he drew on ideas of Harold Jeffreys, I. J. Good and B. O. Koopman.

He also reasoned about the connection of economics and probability, and thought that guiding principles to be Paretian optimum further inspired by "fairness" criteria.

De Finetti held different social and political beliefs through his life: following fascism during his youth, then moving to Christian socialism and finally adhering to the Radical Party.

He started publishing on exchangeability in the late 1920s, but the 1937 article is his most famous treatment.

1921

In the 21st century quantum extensions of de Finetti's representation theorem have been found to be useful in quantum information, in topics like quantum key distribution and entanglement detection.

See Works on

(The following are translations of works originally published in Italian or French.)

The following books have a chapter on de Finetti and references to further literature.

1927

He graduated in 1927, writing his thesis under the supervision of Giulio Vivanti.

1929

In 1929, de Finetti introduced the concept of infinitely divisible probability distributions.

He also introduced de Finetti diagrams for graphing genotype frequencies.

1930

He published extensively (17 papers in 1930 alone, according to Lindley) and acquired an international reputation in the small world of probability mathematicians.

1931

After graduation, he worked as an actuary and a statistician at Istituto Nazionale di Statistica (National Institute of Statistics) in Rome and, from 1931, the Trieste insurance company Assicurazioni Generali.

1936

In 1936 he won a competition for Chair of Financial Mathematics and Statistics, but was not nominated due to a fascist law barring access to unmarried candidates; he was appointed as ordinary professor at the University of Trieste only in 1950.

1937

The classic exposition of his distinctive theory is the 1937 "La prévision: ses lois logiques, ses sources subjectives", which discussed probability founded on the coherence of betting odds and the consequences of exchangeability.

De Finetti was born in Innsbruck, Austria, and studied mathematics at Politecnico di Milano.

1939

He taught mathematical analysis in Padua and then won a chair in Financial Mathematics at Trieste University (1939).

1950

De Finetti only became known in the Anglo-American statistical world in the 1950s when L. J. Savage, who had independently adopted subjectivism, drew him into it; another great champion was Dennis Lindley.

1954

In 1954 he moved to the Sapienza University of Rome, first to another chair in Financial Mathematics and then, from 1961 to 1976, one in the Calculus of Probabilities.

1961

In 1961 he was elected as a Fellow of the American Statistical Association.

The de Finetti Award, presented annually by the European Association for Decision Making, is named after him.

The Department of Mathematics, Statistics and Economics of the University of Trieste is named after him too.

1974

The 1974 English translation of his book is credited with reviving interest in predictive inference in the Anglophone world and bringing the idea of exchangeability to its attention.

1985

De Finetti died in Rome in 1985.

De Finetti emphasized a predictive inference approach to statistics; he proposed a thought experiment along the following lines (described in greater detail at coherence): You must set the price of a promise to pay $1 if there was life on Mars 1 billion years ago, and $0 if there was not, and tomorrow the answer will be revealed.

You know that your opponent will be able to choose either to buy such a promise from you at the price you have set, or require you to buy such a promise from your opponent, still at the same price.

In other words: you set the odds, but your opponent decides which side of the bet will be yours.

The price you set is the "operational subjective probability" that you assign to the proposition on which you are betting.

This price has to obey the probability axioms if you are not to face certain loss, as you would if you set a price above $1 (or a negative price).

By considering bets on more than one event, de Finetti could justify additivity.

Prices, or equivalently odds, that do not expose you to certain loss through a Dutch book are called coherent.

De Finetti is also noted for de Finetti's theorem on exchangeable sequences of random variables.

De Finetti was not the first to study exchangeability, but he brought the subject to greater visibility.