Emil Kirkegaard Profile picture
Jan 6, 2024 10 tweets 6 min read Read on X
I published a new study and it's a juicy one.

The establishment's theory of race differences in socially valued metrics is that this is due to "systemic racism", a kind of Marxist conspiracy theory where the dominant group (Whites) keeps other peoples down.


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There are clear testable predictions from this theory. In places where racist, White people have more power, outcomes for non-Whites, especially Blacks and Hispanics should be worse. Recall that the US demographics by county look like this.

Of course, Republicans are racist in this theory.Image
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Thus, the theory predicts that in these areas of the USA, Blacks and Hispanics should be particularly worse off compared to Whites. But the exact opposite is actually true. The race gaps are smaller, not larger, in Whiter and more Republican areas.


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The above figures are for test score gaps, but the same holds true if we look at social status gaps. Here's some maps of race gaps in social status.
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So we need another way to explain the variation in social status gaps. Well, it's easy. Test scores -- academic achievement that mainly reflecting intelligence -- explain why race gaps are smaller and larger in various locations. Meritocracy works.
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It gets even worse for the theory. It turns out the effect of White population share and Republican vote share are interactive. The areas with the smallest race gaps are the ones with the largest White populations and the largest Republican vote shares combined!
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There we have it. The Marxist conspiracy theory that is the go-to explanation of race relations fails when we look at county-level variation across the United States. The predictions it makes are exactly opposite of reality. If anything, it seems Republican Whites are good for minorities.
If you want more details, read my new blog post:

New study out: Systemic Racism Does Not Explain Variation in Race Gaps on Cognitive Tests

emilkirkegaard.com/p/new-study-ou…
Or read the study yourself. It's only 20 pages:

researchgate.net/publication/37…
You can also download the data and R code yourself if you are more curious. There are many more figures and maps in the OSF repository.

osf.io/m8gs5/

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More from @KirkegaardEmil

Apr 12
US Naval Academy: "a white applicant with a 5% chance of admission would have a 50% chance if evaluated as Black, and more than 70% of Black admits would not have been admitted under a race-neutral system"

Whites the most systematically discriminated against race. Image
The usual SAT gaps among applicants. Image
US military looks like other publicly funded institutions. A jobs program for non-Whites. Image
Read 4 tweets
Apr 4
Americans are super fat, so many people look for explanations for this, usually something USA-specific like seed oils, or corn syrup. Image
Americans have some race differences too, but they aren't that large. The White Americans are quite fat by themselves, only Asians drag the mean down. Image
Maybe it's due to money. Americans are rich. Yes, but the plot worldwide looks like this. There's just about no relationship between median income (or GDPpc) after covering basic necessities. Image
Read 10 tweets
Mar 14
Soyboyism is also heritable. In fact, the most heritable (snp h²) dietary habit in this study! (bottom right) Image
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Mar 8
Can Europe learn from Ghana? Buried on Wikipedia is a 3 sentence part about how Ghana deported 20% of the population -- 3 million people -- all the non-Ghanans. And it only took 3 months. The "Ghana Aliens Compliance Order" (GACO)

en.wikipedia.org/wiki/Illegal_i…Image
This website provides the history. It begins, of course, with economic migration since Ghana was the gold coast. In fact, these migrants were going into a British colony, probably for the usual reasons of wanting to live under European domain: rule of lawand prosperity. Image
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European rule eventually declined, and just after they left (1957), the economy goes bad. At least, so they say, but it doesn't look that way until 1970s by GDP stats. Image
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Read 8 tweets
Jan 20
The racism of teachers Image
In Germany, non-German students (anyone with "migration background") get lower grades and test scores. Image
Due to their politics, teachers are expected to have some bias towards girls, minorities, low-SES etc. students. So do they? The authors find that, yes, they do. Image
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Read 6 tweets
Jan 11
The decline of intelligence, as measured by genetic scores. Image
The decline of intelligence estimated by fertility and intelligence correlations by country. Image
The decline of human average intelligence to come, as seen by the fertility rates and national IQs. Image
Read 5 tweets

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