astronomy

Oldřich Vašíček

Oldřich Vašíček is a astronomy topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Oldřich Vašíček rather than just read about it. In short: Oldřich Alfons Vašíček (Czech pronunciation: [ˈoldr̝ɪx ˈalfons ˈvaʃiːt͜ʃɛk]; born 1942) is a Czech mathematician and quantitative analyst, best known for his pioneering work on interest rate and credit modelling; with the eponymous Vasicek model and KMV model. Biography Vašíček received his master's degree in math from the Czech Technical University, 1964, and a doctorate in probability theory from Charles Universit…

Key takeaways

Oldřich Vašíček belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Oldřich Vašíček to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Oldřich Vašíček from memory before moving on to harder problems.

Reference excerpt

Oldřich Alfons Vašíček (Czech pronunciation: [ˈoldr̝ɪx ˈalfons ˈvaʃiːt͜ʃɛk]; born 1942) is a Czech mathematician and quantitative analyst,

best known for his pioneering work on interest rate and credit modelling; with the eponymous Vasicek model and KMV model.

Biography Vašíček received his master's degree in math from the Czech Technical University, 1964, and a doctorate in probability theory from Charles University four years later. After the Soviet invasion of Czechoslovakia in 1968, he defected to America, settled in San Francisco, and found employment in the management science department of Wells Fargo Bank in January 1969. His academic career also included teaching graduate finance at the University of Rochester, the University of California, Berkeley, and ESSEC Business School in France. In 1970, Wells Fargo sponsored a conference that included Fischer Black and Myron Scholes, who had just begun thinking seriously about the problem of valuing stock options. Of course, their paper on that subject, timed so as to coincide with a related paper by Robert C. Merton, would revolutionize financial economics three years later. Even their preliminary thoughts at the 1970 conference excited Vašíček, who soon made related issues his own life's work. Vašíček's own breakthrough paper, "An equilibrium characterization of the term structure" describing the dynamics of the yield curve, appeared in the Journal of Financial Economics in 1977. The mean-reverting short-rate model he describes is commonly known as the Vasicek model. In recognition of the above paper, and subsequent work, the International Association of Financial Engineers named Vašíček its IAFE/Sungard Financial Engineer of the Year, in 2004. Vašíček has also received the Risk magazine Lifetime Achievement Award.

He has been inducted into the Derivatives Strategy Hall of Fame, the Fixed Income Analysts Society Hall of Fame and the Risk Magazine Hall of Fame. His 1987 paper Probability of Loss on Loan Portfolio was included in the book Derivatives Pricing: The Classic Collection, a selection of the "19 most influential papers" on quantitative finance. In 1989 Stephen Kealhofer, John McQuown and Oldřich Vašíček founded the company KMV. In 2002 the three entrepreneurs sold the company to Moody's for $210 million. In 2007, Moody's KMV was renamed to Moody's Analytics. Vašíček plays the flute and is an avid windsurfer. He has three sons, one of whom is the screenwriter John Vasicek.

See also Short rate model Vasicek model KMV model

Notes

Worked examples

Example 1 — a first encounter with Oldřich Vašíček

Start with the simplest possible case. Write down what Oldřich Vašíček claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In astronomy, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Oldřich Vašíček before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Oldřich Vašíček ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Oldřich Vašíček

In research: Oldřich Vašíček appears in astronomy research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Oldřich Vašíček in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Oldřich Vašíček is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1942 births, American financial company founders, Charles University alumni, so understanding it makes those chapters shorter.
In everyday life: Look for Oldřich Vašíček outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Oldřich Vašíček in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Oldřich Vašíček means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Oldřich Vašíček out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Oldřich Vašíček in simple terms?

Oldřich Alfons Vašíček (Czech pronunciation: [ˈoldr̝ɪx ˈalfons ˈvaʃiːt͜ʃɛk]; born 1942) is a Czech mathematician and quantitative analyst, best known for his pioneering work on interest rate and credit modelling; with the eponymous Vasicek model and KMV model. Biography Vašíček received his master'…

Why does Oldřich Vašíček matter?

Because it connects several astronomy ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Oldřich Vašíček?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Oldřich Vašíček.