5 Comments

- Have you tried wealth instead of income inequality (data probably harder to get)? Income taxes are very progressive and welfare spending affects income but shouldn't have a large effect on wealth.

Some data suggest wealth and income inequality are even negatively related: https://journals.sagepub.com/doi/abs/10.1177/00031224211027800

- Trying to make sense of the negative correlation. Could be mediated by "state capacity" that decreases income inequality by welfare spending and increases immigration (i.e. IQ inequality) at the same time. Thinking mostly about Euro states here. Could test that with your S-factor measure.

- I don't buy the extremely low inequality measures for countries like BLR, UKR or SVK.

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"Who can really believe that utra-diverse countries like Brazil (BRA) and Mexico (MEX) have less intelligence diversity than Malta (MLT). "

Perhaps lower IQ people are disproportionally likely not to be in school in those countries?

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Isn't intelligence diversity higher if you capture more people at the very extreme right-tail end of intelligence? (b/c there are more DIVERSE WAYS for intelligence to manifest at higher ends of intelligence - if you treat intelligence as appropriately multidimensional)

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There are way too many factors that effect income inequality, especially as you examine non-western states. Things like quality of institutions, cultural factors, racial hierarchies, demography, and countless other variables all play a role. And there’s the quality of international tax data to worry about when measuring income.

And controlling for one or two factors like racial diversity and support for income distribution aren’t nearly enough.

I doubt any true correlation can be found on a global level. Although the relationship between income and IQ is useful to know over time for western nations. This is the type of correlation that we might judge as “good” since it may serve as a proxy for how meritocratic a nation is. Maybe a time series for OECD nations?

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Aug 31, 2022·edited Aug 31, 2022

Hypothesis:

(1) Because of managerial theory of how 18IQ difference (+-10IQ) exists for each social layer, the more cognitive inequality, the more complex a corporation can tolerate. Conversely, more cognitive homogeneity implies lost organizational potential, i.e. less productive. https://workplaceinsight.net/managers-high-iq-might-clever-good-comes-leadership/

(2) People will gladly take status over higher pay, this neutralizes inequality of income due to IQ https://robkhenderson.substack.com/p/status-over-money-money-over-status

(3) High average IQ and High diversity increases productivity, whilst status games reduces inequality induced by productivity.

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