Emil Kirkegaard Profile picture
Aug 14, 2023 4 tweets 2 min read Read on X
Private market fans are usually a fan of private education. The trouble is that educational outcomes are mostly just genetics, so there isn't much room for improvement. One way to study this is to look at school voucher randomized trials.

This meta-analysis shows that they don't do anything for reading or math ability in the West. The results for non-Western countries are larger, but not very trustworthy due to rampant scientific misconduct in those countries. Shrug tier.

Private education probably preferable on other grounds, but not for actual learning outcomes.

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The Participant Effects of Private School Vouchers Across the Globe: A Meta-Analytic and Systematic Review

papers.ssrn.com/sol3/papers.cf…
Reminders about rampant scientific dishonesty outside the West.

emilkirkegaard.com/p/scientific-m…
Randomized trials from outside the West very often have fraudulent or impossible data.

…-publications.onlinelibrary.wiley.com/doi/abs/10.111…

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More from @KirkegaardEmil

Oct 24
Does democracy or self-governance do something to your personality or values? Maybe yes says this clever study of Switzerland.

In ... 1218 the last ruler of Zähringen dies, leaving no heir, so the lands revert to imperial rule and gain some kind of self-governance. Image
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It appears, these areas are still to this day higher in cooperative attitudes and voting turnout. It can't be explained in terms of crude sociological factors, and due to the geographical diversity, one can also employ fixed effects, none of which remove the pattern. Image
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Most importantly, p-values are good. Image
Read 4 tweets
Sep 8
Even extreme luck from natural resources does not outweigh psychology in explaining variation in wealth. Take Nauru, the fattest country in the world, 95% are overweight and 70%+ are obese.

In the 1970s, they mined bird poo (guano) and sold it so that their country was the wealthiest in the world GDP per capita (population about 10k Polynesians). The plan was to put the money into a national trust fund, like Norway does. The interests from this massive wealth would enable them to basically finance a welfare state perpetually. However, it was not to be due to "mismanagement and corruption". Today they are about as poor as they were to begin with. Rags to riches to rags.Image
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Read 7 tweets
Jul 5
Richard Lynn published a posthumous papers on race differences in schizophrenia. The worldwide pattern in races living in Western countries appear to follow their relative intelligence levels. Highest in Blacks, elevated in various other groups, Amerindians/Hispanics, Aboriginies, Maori, MENAP and so on. East Asians seem to be slightly lower, but little data.Image
Africans (Blacks) vs. Europeans (Whites) higher no matter if they live in USA, UK, or Sweden.


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Various other groups


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Read 9 tweets
Apr 17
Everybody knows some topics or questions are taboo, but which ones? Do people agree? Decided to find out. We asked 500 Americans online to rate the tabooness of 29 questions, and this was the result.

Race and IQ was the winner, even beating incest, pedophilia, gay germs etc. Image
The results were almost entirely consistent across all subgroups: age, sex, politics, race, science knowledge. The correlations for taboo ratings across groups were >.90, close to 1.00 without sampling error.

Though note that some grounds find everything more taboo than others.


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Why did we look into this? Well, back in 2021, I made fun of this paper. And now we have the published demonstration the taboo hierarchy.

journals.sagepub.com/doi/full/10.11…
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Read 5 tweets
Feb 26
The egalitarians in power were quick to cancel those academics who dared write that Dutch immigration report.

demo-demo.nl/wp-content/upl…
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Socialism attracts losers. This is also true for immigration socialism. Image
Attaining a reasonable outcome -- no more costs from foreigners in the country -- requires drastic measures. Even reducing 'refugees' by 90% is not enough. Image
Read 20 tweets
Feb 14
To understand the fiscal effects of immigration you have to start with a plot like this one. From the perspective of the government, people below 25 are net negatives, between 25 and 75, they are net positive, and then negative again. Image
The reasons for this are straightforward. Below 25's cost the state money in terms of childcare and education and don't yet make much money, and thus don't pay much in income tax. Old people cost money in retirement, old peoples homes, and healthcare. Image
The current net fiscal effect of an immigration group thus depends on its age distribution to a large extent. Maybe a group is currently positive because it is of working age, but that is short-term thinking. You must apply a lifetime perspective -- longtermism.
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Read 8 tweets

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