mathematics

Katarina Juselius

Katarina Juselius is a mathematics 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 Katarina Juselius rather than just read about it. In short: Katarina Juselius (born 25 September 1943) is professor Emeritus of econometrics and empirical economics at the University of Copenhagen. Her work has been on empirical macro models and associated issues.

Key takeaways

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

Reference excerpt

Katarina Juselius (born 25 September 1943) is professor Emeritus of econometrics and empirical economics at the University of Copenhagen. Her work has been on empirical macro models and associated issues. She obtained her Lic.Econ.Sc. and PhD from the Swedish School of Economics and Business Administration in Helsinki.

Research She is the 271st most quoted economist in the world according to IDEAS and her research has been quoted 27000 times. She is also on the editorial board of Journal of Economic Methodology. Her most quoted paper, "Maximum likelihood estimation and inference on cointegration—with applications to the demand for money" has been quoted over 16000 times.

Personal life She is married to Søren Johansen who is also a professor of econometrics at the same university.

Selected publications Juselius, K. (2006). The Cointegrated VAR Model: Methodology and Applications. Oxford University Press. ISBN 0-19-928566-7. Johansen, S.; Juselius, K. (1990). "Maximum Likelihood Estimation and Inference on Cointegration—with Applications to the Demand for Money". Oxford Bulletin of Economics and Statistics. 52 (2): 169–210. doi:10.1111/j.1468-0084.1990.mp52002003.x. Johansen, S.; Juselius, K. (1992). "Testing Structural Hypotheses in a Multivariate Cointegration Analysis of the PPP and the UIP for UK". Journal of Econometrics. 53 (1): 211–244. doi:10.1016/0304-4076(92)90086-7.

References

External links Katarina Juselius's home page at University of Copenhagen

Worked examples

Example 1 — a first encounter with Katarina Juselius

Start with the simplest possible case. Write down what Katarina Juselius claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In mathematics, 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 Katarina Juselius 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 Katarina Juselius 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 Katarina Juselius

In research: Katarina Juselius appears in mathematics 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 Katarina Juselius 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: Katarina Juselius is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1943 births, 21st-century Finnish economists, Academic staff of the University of Copenhagen, so understanding it makes those chapters shorter.
In everyday life: Look for Katarina Juselius 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 Katarina Juselius in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Katarina Juselius 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 Katarina Juselius out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Katarina Juselius in simple terms?

Why does Katarina Juselius matter?

Because it connects several mathematics 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 Katarina Juselius?

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 Katarina Juselius.