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Sociology

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Lewis Terman on human diversity and intelligence in 1922

  • Post author:Emil O. W. Kirkegaard
  • Post published:30. June 2025
  • Post category:Genetics / behavioral genetics/History/Immigration/intelligence / IQ / cognitive ability

I've been reading through some old papers and stumbled across an exchange between journalist Walter Lippmann and Lewis Terman in 1922 (original). Unfortunately, I wasn't fast enough to convert my…

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Read more about the article National IQ stereotypes are accurate too

National IQ stereotypes are accurate too

  • Post author:Emil O. W. Kirkegaard
  • Post published:1. May 2025
  • Post category:Immigration/intelligence / IQ / cognitive ability/Stereotypes

We just published a new article: Jensen, S., & Kirkegaard, E. (2025). Stereotypes of the Intelligence of Nations. Comparative Sociology, 24(2), 272-295. https://doi.org/10.1163/15691330-bja10134 The authors surveyed a nationally representative sample…

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Read more about the article Race and crime in Japan

Race and crime in Japan

  • Post author:Emil O. W. Kirkegaard
  • Post published:14. April 2025
  • Post category:Criminology/Immigration

(Guest post by anon.) Many are aware of disparities in crime rates among ethnic and racial groups in Western countries. But what patterns emerge in Japan, a country far from…

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Read more about the article Hutus and Tutsis and genetics

Hutus and Tutsis and genetics

  • Post author:Emil O. W. Kirkegaard
  • Post published:25. March 2025
  • Post category:Genomics/History/Sociology

My book review of Michael Ryan's book briefly covered this topic but due to popular interest, here is a full post. Famously, there was a genocide in Rwanda in the…

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Read more about the article People did not used to marry early in the good old times

People did not used to marry early in the good old times

  • Post author:Emil O. W. Kirkegaard
  • Post published:28. February 2025
  • Post category:Demographics/Sociology

If you look at a plot of age of first marriage and age of first birth (usually following marriage), you might get the idea that the 1960s cultural revolution, feminism…

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Read more about the article End stage global capitalism

End stage global capitalism

  • Post author:Emil O. W. Kirkegaard
  • Post published:18. February 2025
  • Post category:Economics/Immigration/intelligence / IQ / cognitive ability

Let's define global capitalism as market economy combined with relatively free movement of labor (people) and capital. This is approximately world we live in. We have an unequal world to…

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Read more about the article Elon’s meme magic

Elon’s meme magic

  • Post author:Emil O. W. Kirkegaard
  • Post published:28. January 2025
  • Post category:Linguistics/language/Sociology

There is a 1949 science fiction novel (Project Mars: A Technical Tale) about how to build a Mars colony, and it includes this part: Amazing, it was written by none…

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Read more about the article Give women what they want: more babies

Give women what they want: more babies

  • Post author:Emil O. W. Kirkegaard
  • Post published:26. January 2025
  • Post category:Politics/Sociology

Central to the decline of the West and now almost all high income countries is that they have too low fertility. Just a reminder from the prior post: Why the…

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Read more about the article On genocide and the worst modern ideology

On genocide and the worst modern ideology

  • Post author:Emil O. W. Kirkegaard
  • Post published:23. January 2025
  • Post category:Politics/Psychology/Sociology

Some time ago I read Bradley Campbell's The Geometry of Genocide: A Study in Pure Sociology. Like his other books, it's short, to the point, and well worth reading. First,…

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Read more about the article Good immigrants, bad immigrants: Dutch edition

Good immigrants, bad immigrants: Dutch edition

  • Post author:Emil O. W. Kirkegaard
  • Post published:10. January 2025
  • Post category:Immigration/intelligence / IQ / cognitive ability

People have been posting results from this new Dutch study of immigration, so I thought I would cover it here to increase the reach. van de Beek, J., Hartog, J.,…

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