Blog Archives

Explaining the Almon Distributed Lag Model

January 6, 2017
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In an earlier post I discussed Shirley Almon's contribution to the estimation of Distributed Lag (DL) models, with her seminal paper in 1965.That post drew quite a number of email requests for more information about the Almon estimator, and how it fits into the overall scheme of things. In addition, Almon's approach to modelling distributed lags has been used...

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More on Orthogonal Regression

December 27, 2016
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Some time ago I wrote a post about orthogonal regression. This is where we fit a regression line so that we minimize the sum of the squares of the orthogonal (rather than vertical) distances from the data points to the regression line.Subsequently, I received the following email comment:"Thanks for this blog post. I enjoyed reading it. I'm wondering how straightforward...

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Spreadsheet Errors (discussed in The Economist)

September 9, 2016
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Five years ago I wrote a post titled, "Beware of Econometricians Bearing Spreadsheets". The take-away message from that post was simple: there's considerable, well-documented, evidence that spreadsheets are very, very, dangerous when it comes to statistical calculations. That is, if you care about getting the right answers!Read that post, and the associated references, and you'll see what I mean.(You might...

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Graduate Econometrics Exam

May 17, 2016
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Occasionally readers ask about the exams that I set in my graduate econometrics courses.The elective graduate econometrics course that I taught this past semester was one titled "Themes in Econometrics". The topics that are covered vary from year to ye...

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Graduate Econometrics Exam

May 17, 2016
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Occasionally readers ask about the exams that I set in my graduate econometrics courses.The elective graduate econometrics course that I taught this past semester was one titled "Themes in Econometrics". The topics that are covered vary from year to year. However, as the title suggests, the course focuses on broad themes that arise in econometrics. Examples might include maximum...

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"Using R for Introductory Econometrics"

February 8, 2016
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"Using R for Introductory Econometrics"

Recently, I received an email from Florian Heiss, Professor and Chair of Statistics and Econometrics at the Henrich Heine University of Dusseldorf.He wrote: "I'd like to introduce you to a new book I just published that might be of interest to you: Using R for Introductory Econometrics. The goal: An introduction to R that makes it as easy as possible for...

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"Using R for Introductory Econometrics"

February 8, 2016
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"Using R for Introductory Econometrics"

Recently, I received an email from Florian Heiss, Professor and Chair of Statistics and Econometrics at the Henrich Heine University of Dusseldorf.He wrote:"I'd like to introduce you to a new book I just published that might be of interest to you: Using R for Introductory Econometrics.The goal: An introduction to R that makes it as easy as possible for...

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Modelling With the Generalized Hermite Distribution

January 22, 2016
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Modelling With the Generalized Hermite Distribution

"Count" data occur frequently in economics. These are simply data where the observations are integer-valued - usually 0, 1, 2, ....... . However, the range of values may be truncated (e.g., 1, 2, 3, ....). To model data of this form we typically resort to distributions such as the Poisson, negative binomial, or variations of these. These variations may account...

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Modelling With the Generalized Hermite Distribution

January 22, 2016
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Modelling With the Generalized Hermite Distribution

"Count" data occur frequently in economics. These are simply data where the observations are integer-valued - usually 0, 1, 2, ....... . However, the range of values may be truncated (e.g., 1, 2, 3, ....).To model data of this form we typically resort to distributions such as the Poisson, negative binomial, or variations of these. These variations may account...

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Angus Deaton, Consumer Demand, & the Nobel Prize

October 13, 2015
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Angus Deaton, Consumer Demand, & the Nobel Prize

I was delighted by yesterday's announcement that Angus Deaton has been awarded the Nobel Prize in Economic Science this year. His contributions have have been many, fundamental, and varied, and I certainly won't attempt to summarize them here. Suffice to say that the official citation says that the award is "for his contributions to consumption, poverty, and welfare". In this earlier...

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