Lars P. Syll

Probability and rationality — trickier than you might think The Coin-tossing Problem My friend Bengt says that on the first day he got the following sequence of Heads and Tails when tossing a coin: H H H H H H H H H H And on the second day he says that he got the following sequence: H T T H H T T H T H Which day-report makes you suspicious? Most people I ask this question says the first day-report looks suspicious. But actually,​ both days are equally...

What the euro is all about There are still economists and politicians out there who think that the euro is the only future for Europe. However, there seem to be some rather basic facts about optimal currency areas that it would perhaps be wise to consider … The idea that the euro has “failed” is dangerously naive. The euro is doing exactly what its progenitor – and the wealthy 1%-ers who adopted it – predicted and planned for it to do. That progenitor is...

In a post on his blog, Paul Krugman argues that ‘Keynesian’ macroeconomics more than anything else “made economics the model-oriented field it has become.” In Krugman’s eyes, Keynes was a “pretty klutzy modeler,” and it was only thanks to Samuelson’s famous 45-degree diagram and Hicks’ IS-LM that things got into place. Although admitting that economists have a tendency to use ”excessive math” and “equate hard math with quality” he still vehemently defends — and always has —...

In an article published last week, Nicholas Gruen criticized the modern vogue of formalization in economics and took Paul Krugman as an example: He’s saying first that economists can’t see what isn’t in their models – whereas Hicks and pretty much every economist until the late twentieth century would have understood the need for careful and ongoing reconciliation of formal modelling and other sources of knowledge. More shockingly he’s saying that those who smell a rat at the...

IQ tests, genetics, and the Flynn Effect  [embedded content] [embedded content] Advertisements

The main reason why almost all econometric models are wrong Since econometrics doesn’t content itself with only making optimal predictions, but also aspires to explain things in terms of causes and effects, econometricians need loads of assumptions — most important of these are additivity and linearity. Important, simply because if they are not true, your model is invalid and descriptively incorrect.  And when the model is wrong — well, then it’s wrong. The...

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Animal cruelty and human dignity  [embedded content] Throughout European history the idea of the human being has been expressed in contradistinction to the animal. The latter’s lack of reason is the proof of human dignity. So insistently and unanimously has this antithesis been recited … that few other ideas are so fundamental to Western anthropology. The antithesis is acknowledged even today. The behaviorists only appear to have forgotten it. That they...

Last year, we recruited 29 teams of researchers and asked them to answer the same research question with the same data set. Teams approached the data with a wide array of analytical techniques, and obtained highly varied results … All teams were given the same large data set collected by a sports-statistics firm across four major football leagues. It included referee calls, counts of how often referees encountered each player, and player demographics including team position,...

Take full responsibility for your life [embedded content] Never give in. Never give up. Advertisements