Do gun ownership predict homicides taking race into account?
You may have seen a plot like this one: The reader is left to interpret that guns cause homicides. It's correct if we include suicides but it's not true for…
Meta-Analysis of American Race Differences in Intelligence
So our new meta-analysis of the American race gaps in IQ is published! Kirkegaard, E. & Jensen, S. (2025). Meta-Analysis of American Race Differences in Intelligence. Mankind Quarterly, 66(2), 290-300.…
Who is best at the Olympics? Not America
I am not particularly interested in sports unless it involves statistics. Recently, a major topic on X is posting about this or that US winner. Stuff like this: So let's…
American race relations 1964-2024
The American National Election Studies (ANES) is a series of surveys that has been administered to broadly representative samples of Americans since 1948. They asked thousands of questions, though most…
Somalis in the USA: also not a success
Western countries are experimenting with solutions to their population aging problem. For instance, one of the countries with the worst age pyramids is Germany: Since the welfare state is effectively…
The other Anglo exceptionalism
Economists are fond of talking about the specialness of the United Kingdom back when it kicked off the industrial revolution. Similarly, USA is doing remarkably well by some metrics compared…
Scientific productivity by country
I've previously written about scientific misconduct by country, but what about good conduct, that is, (good) science? There are various ways to count this. The simplest is to count the…
In defense of hereditarianism: a reply to Friedman
David Friedman, a self-described "anarchist-anachronist-economist" and author of The Machinery of Freedom: Guide to a Radical Capitalism (on my to-read list) has written a criticism of the hereditarian position on…
Who wants to die for globalists?
Men constitute the vast majority of the fighting power of a country. When women make inroads by political forcing, the results are often comical or disturbing, depending on your level…
International differences in intelligence can be confusing: A commentary on Harrison et al (2015)
Abstract In this commentary I explain how mean differences between normal distributions give rise to different percentages of the populations being above or below a given threshold, depending on where…