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On a dubious theory of cross-country differences in intelligence

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Author Info

  • Kevin Denny

    (School of Economics and Geary Institute University College Dublin)

Abstract

Kanazawa (2007) offers an explanation for the variation across countries of average intelligence. It is based on the idea human intelligence is a domain specific adaptation and that both temperature and the distance from some putative point of origin are proxies for the degree of novelty that humans in a country have experienced. However the argument ignores many other considerations and is a priori weak and the data used questionable. A particular problem is that in calculating distances between countries it implicitly assumes that the earth is flat. This makes all the estimates biased and unreliable.

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File URL: http://www.ucd.ie/geary/static/publications/workingpapers/gearywp200931.pdf
File Function: First version, 2009
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Bibliographic Info

Paper provided by Geary Institute, University College Dublin in its series Working Papers with number 200931.

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Length: 10 pages
Date of creation: 22 Oct 2009
Date of revision:
Handle: RePEc:ucd:wpaper:200931

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Related research

Keywords: intelligence; measurement error; international comparisons;

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