An article titled “study links cannabis to psychosis” says in the first paragraph: People who use cannabis in their youth dramatically increase their risk of psychotic symptoms, and continued use of the drug can raise the risk of developing a psychotic disorder in later life, scientists said. Of course, later on in the article – …
Category Archive: Econometrics
Permanent link to this article: http://www.tvhe.co.nz/2011/03/03/careful-with-the-evidence-son/
Feb
07
2011
Quote of the day: On theory and data
From Eric Crampton: I tend to be pretty skeptical of results that aren’t grounded in basic price theory or that aren’t confirmed by a lot of different methods, including both Ocular and Ordinary Least Squares. A single paper merely helps people to update their priors – it doesn’t provide conclusive evidence of a result. Often …
Permanent link to this article: http://www.tvhe.co.nz/2011/02/07/quote-of-the-day-on-theory-and-data/
Aug
18
2010
Spirit level: A more fundamental concern
I agree with Dim Post that the choice of countries to add to the choice of countries made in the Spirit Level is a bit arbitrary (although I think Not PC and Kiwiblog also have a point regarding how sensitive the regression results are to the choice of countries that aren’t strictly the largest outliers …
Permanent link to this article: http://www.tvhe.co.nz/2010/08/18/spirit-level-a-more-fundamental-concern/
Apr
12
2010
Data and prediction
Via Scott Sumner we saw the following article that mentions economic data and economic predictions. The statements that stood out to me were: (Economic) predictions are, of course, the bread and butter of economic institutions. But can we believe them? In recent years, some economists have begun to express doubts over predictions made from huge …
Permanent link to this article: http://www.tvhe.co.nz/2010/04/12/data-and-prediction/
May
19
2009
Hand waving, model making, and variable lags
I would suggest that anyone who is interested in economic models reads this post, namely because I agree with it wholeheartedly While it might seem cool to run some regressions and get a result that you believe will tell you the future it is important to realise what your implicit assumptions are. If you add …
Permanent link to this article: http://www.tvhe.co.nz/2009/05/19/hand-waving-model-making-and-variable-lags/
Apr
09
2009
Americans growing more tolerant of gay marriage
After the sadness of California passing Proposition 8 banning gay marriage last year, there have been a couple of recent victories for civil rights campaigners in Vermont and Iowa. That motivated Nate Silver to work the numbers and ask when we might expect the rest of the US to reject a ban on gay marriage. …
Permanent link to this article: http://www.tvhe.co.nz/2009/04/09/americans-growing-more-tolerant-of-gay-marriage/
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