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Is summarized below for each state (source) – and it shows some very interesting patterns.


The average life expectancy of Asian-Americans (86.5 years) is 4 years higher than in Japan – the longest-lived big East Asian country. Taiwan and South Korea are at around 80; Hong Kong is at 83; Singapore is at 81. The other East Asian countries aren’t developed yet, so there isn’t much point in comparison.

The LE of Latinos is 82.8, which is 6 years more than in Mexico, 4 years more than in the longest-lived Latin American countries and even a year higher than in Spain (one of the longest-lived European countries). This is despite the fact that obesity rates among Hispanics in the US is very high – higher than those of whites.

On average American whites can expect to live to just 78.9 – the same as in Chile or Denmark (the shortest-lived Western European country). A most curious anomaly, given their higher SES and lower obesity rates relative to Hispanics.

Blacks can expect to live around 74.2 years. This is far higher than in any African country, but the comparison is flawed for obvious reasons. It is however pretty close to the life expectancy in predominantly mulatto Caribbean countries like Jamaica (73 years) or the Bahamas (75 years), countries which are more suitable for comparison.

Native Americans average 76.9 years, though they are spread out all across the spectrum – ranging from 80 in California, to 69 in Montana.

Some questions and issues to ponder:

(1) The influence of diet and lifestyle: This is pretty clear-cut in the case of the Native Americans; the groups with life expectancy at around ~70 are no doubt brought down by those of them who live in alcohol-soaked reservations. This is the same life expectancy in Russia and some other former Soviet countries, where binge drinking of spirits is likewise prevalent. But it is genuinely interesting to consider why Latinos, who are more obese than whites, nonetheless manage to live so consistently longer – both relative to white Americans, and even to Spaniards. Likewise for Asians – although Asian-Americans are inevitably more influenced by American food habits than East Asians in their own countries – which are said to have far healthier national cuisines – they nonetheless manage to live significantly longer than them.

(2) The influence of the US healthcare system: It is frequently slammed and denigrated, but how to explain that the two biggest immigrant groups – Latinos and Asians – live a lot longer than in their countries of origin (including the developed ones)? Conversely, why would white America, if it were a separate country, be at near the very bottom of the life expectancy charts compared to Western European countries?

(3) One rejoinder is that immigrants to the US are better-educated, higher-IQ, and/or richer than the average in their countries of origin. As such, they are expected to have a higher life expectancy anyway. But this is patently not the case regarding Hispanics, and only partially true regarding Asians (Chinese Americans include both low-class indentured laborers who migrated in the 19th century, as well as far more commercially successful recent migrants from the Chinese diaspora of South-East Asia; the Japanese-American community is mostly descended from low-class laboring immigrants from the 19th century).

(4) The r/K selection theory plausibly explains the Black – White – Asian life expectancy sequence, especially in the US where they all share more or less the same cultural and healthcare environment. The case of the Latinos, however, remains rather shrouded; one possibility is that Amerindians (which is what many Hispanic immigrants to the US predominantly are) are more K-selected than whites – they did, after all, branch off from the proto-Mongoloids – and thus naturally have higher life expectancies than whites.

(5) Asian-Americans and Latinos are younger than whites. This does not have a direct effect on life expectancy (unlike on crude mortality), but with a greater ratio of young people to elderly – not to mention stronger family values – it does perhaps mean that elderly Asian-Americans and Latinos get more attention and care from their family members, thus reducing stress/depression levels and enabling them to eke out one or two more years than they would have otherwise.

(Republished from by permission of author or representative)
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Via The Audacious Epigone: IQ scores by US ethnic groups. It is not very useful I think in theoretical or practical applications but it is interesting as a showcase of why IQ is more than just genetic inheritance, incorporating also Flynn, sampling issues, sense of popular identity, selection bias, etc.

Wordsum is basically a vocab test of 10 words (example). While one might not expect such a quick and simple test to accurately reflect IQ it actually does – the correlation between Wordsum scores and IQ is about 0.71. Respondents got to choose the one or two ethnic groups to which they belong. (See table below)

By and large, the results are as we would expect:

(1) Many of the Russians (about 50%) are, of course, Ashkenazi Jews. Explained.

(2) At first puzzling is the fact that Germans score considerably below the Irish, Mediterraneans (Italians, Greeks, French) and Slavics (Poles, Czechs). This is an inversion of European PISA results in which native Germans got 105 compared to France’s 101, Poland’s 100, Italy’s 98, Greece’s 96, etc. There are two reasons for this I think:

(a) As Ron Unz correctly points out, all other things equal rural people almost always score worse than urban people. Maybe rural life just isn’t as mentally stimulating. Almost certainly there exist strong dysgenic processes (every generation it is the brightest people who leave the farm). But this effect probably isn’t that strong as there are very few Americans still living on the farm today.

(b) As I think hbd chick pointed out, some lineages are more prestigious than others. The Irish and Italians, in particular, are cool. In practice almost everyone in American cities is mixed to some extent. So even if someone is primarily Germanic, he might pass himself off as a Latino or Irishman. So the higher scores of most Italians, Greeks, Irish, Swedes, Norwegians, Hungarians, etc., etc., may well reflect the Germanic substrate more than anything else.

(c) The Germans who came to America mostly came from the northern parts (e.g. the hamburger originated in… Hamburg). And various studies indicate that just as Germany is a genetically diverse nation by European standards so there are significant IQ differentials by regions. Generally speaking, the south is cleverer than the north.

So, we have three major factors: The regional specifics of German immigration to the US; the greater relative prestige of “exotic” ethnic groups together with the “melting pot” culture of American cities; their greater share of the rural population. They may explain why ethnic German IQ in the US is fairly low relative to other European population groups.

Ancestry IQ
Russian 105.2
Austrian 104.5
Swiss 103.6
Danish 102.6
English/Welsh 102.4
Norwegian 102.1
Hungarian 101.6
Scottish 101.5
Swedish 101.3
Czech 100.4
Italian 100.4
French 100.0
Irish 99.7
Polish 99.7
Greek 99.0
French Canadian 98.7
German 98.5
Other Canadian 96.2
Dutch 95.9
(White) “American” 94.2
Spanish 92.4
Native American 91.2
African 89.9
Puerto Rican 89.9
“American” 88.7
Mexican 87.7

(3) The Dutch are especially low, though I suppose that this could be partly accounted for by the fact that a substantial number of them are Pennsylvania Dutch, i.e. Amish. They reject modern technology. Presumably, the Flynn Effect isn’t strong in them.

(4) The Spanish are presumably a mix of real Spaniards (with IQ’s typical of the other Med nations – around 98) and Mexicans (who have an IQ somewhere in the mid to high 80′s, as a result of Amerindian admixture as well as some degree of under-development). They are thus exactly where one would expect them to be.

(5) White “Americans” are typically Scotch-Irish in the Deep South. Here there is an element of self-selection bias because they are people who either forgot or don’t care about their ethnic origins. I.e., rednecks.

(6) Africans score a respectable (by US black standards) 89. Probably because African immigrants tend to be far above the African average. They are also those people who didn’t answer “American”. Of the “Americans”, more than half are black. Since the white “American” average is 94, and the “American” average 89, that means that the black “American” average should be something like 85.

I don’t know how many black “Americans” and “Africans” there were relative to each other but at a minimum we can say that the average for this group is in the 85-89 range. This is exactly coincident with all other conventional estimates.

(7) The Swiss scores are not surprising. They are a very intelligent people. The Austrians might be something of an outlier as I imagine their sample size is quite low. Also the dumber Austrians may have identified themselves as Germans.

(8) All the other ethnic groups appear to be more or less where we would expect them to be based on the performance of their original home countries.

(Republished from by permission of author or representative)
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In recent days Ron Unz’s article Race, IQ, and Wealth (The American Conservative) has been making the rounds in the HBDsphere. Broadly speaking it argues for the predominance of cultural and environmental factors as opposed to genetic in forming IQ. It is fairly long but it’s also one of the best statements of that position out there, and I highly suggest you go and read it in its entirety (as well as the good discussions it spawned at thanks to hbd* chick, Peter Frost, David Sanders, etc).

(Incidentally, part of the reason it is so good is that it avoids throwing round the racism card in addressing proponents of the genetic-determinist model of IQ, as do all too many mainstream commentators. That is really a kind of trolling, and by and by, will as such no longer be tolerated on this blog as it once was.)

To prove his case Ron Unz takes data from Lynn and Vanhanen, the two foremost compilers of global IQ data (along with Rinderman), and turns it against their own position that national IQ levels – barring a universal Flynn Effect – are essentially fixed: “… I would suggest that the heralded 300-page work by Lynn and Vanhanen constituted a game-ending own-goal against their IQ-determinist side, but that neither of the competing ideological teams ever noticed. … Given that Lynn and Vanhanen rank as titans of the racial-difference camp, perhaps their ideological opponents, who often come from less quantitative backgrounds, are reluctant even to open the pages of their books, fearful lest the vast quantity of data within prove that the racialist analysis is factually correct after all. Meanwhile, the pro-racialist elements may simply skim over the hundreds of pages of dry and detailed quantitative evidence and skip to the summary text, which claims that the data demonstrate IQ is genetically fixed and determines which nations will be rich and which will be poor.”

In support of his thesis Ron Unz cites the wide dispersion seen in IQ results for European populations, which are genetically close. Many East-Central European societies that scored low during the 1950′s-80′s have since come close to converging with results from Western Europe. Furthermore, South Europeans and East Europeans who migrated to the US in the 1920′s scored in the mid-80′s – a 1 S.D. discrepancy that is about as big as that which continually separates Blacks from whites. I.e., very significant. However, these folks all managed to integrate into American society and now have IQ’s higher than those of longer established (and more rural) groups such as the Germans and Dutch. In particular, he cites a test administered to 3,500 Irish schoolchildren in 1972, which showed an average IQ of just 87. That is almost 1 S.D. lower than the IQ of Irish-Americans, or for that matter, more recent PISA results which now show the Irish to be well within the European cognitive mainstream.

At this point I should perhaps mention that I my conversion to the “dark side” of genetic determinism is fairly recent and that as early as six months ago I would have agreed with Unz’s reasoning in its entirety – that national IQ’s are mainly a product of culture and development levels and such and have little to do with racial difference (see IQ and Industrialism, 2010). Now I still consider these factors play an important role, but NOT the dominant one. Ron Unz’s article serves as an excellent foil to explain why:


(1) It is important to emphasize that Lynn and Vanhanen basically collate a wide variety of tests across space and time that are non-standardized. Some measure verbal ability (which Europeans are good at and generally hasn’t risen much); others measure spatial or mathematical abilities (which East Asians are better at than Europeans, and which was very much influenced by the Flynn Effect throughout the 20th century). Many of their tests suffer from small and/or biased samples – and I imagine this would be especially true of IQ tests conducted in East-Central Europe. That said, the results of these tests cannot be dismissed out of hand, because of their relative consistency.

(2) As regards US data on immigrants’ IQ from the 1920′s, we cannot also exclude the (artificial) effects of poor English language comprehension. Certainly we know that liberal arguments against the validity of IQ tests emphasizes that the tests in that period were linguistically rigged against immigrants and if that is true then it would make sense that their scores were “mismeasured”. Had I been subjected to a verbal IQ test in English in 1995, say, I would have come out as a clinical retard.

(3) That said, the low Irish results from 1972 are indeed puzzling and deserve a detailed response. THAT SAID, before rushing to ascribe to the difference in development levels, we must also take note that Ireland before the 1975 was a very high-emigration country.

Note that Ireland’s population was actually declining until 1960, despite births outnumbering deaths by almost 2:1. More than 1% of the Irish left their country every single year. The schoolchildren of 1972 would have presumably been born for the most part in the 1950′s, not far from the end-point of a (likely dysgenic) process that had been going on uninterruptedly since the Great Famine. While there is no way to know for sure, there is reason to suspect that on average emigrants had higher IQ’s than average, as the act of emigration requires initiative, fore-planning, future time orientation, and other factors usually associated with higher IQ’s. Operating for a century this would have surely had a dysgenic effect, but fortunately on its cessation, the population would get a chance to revert to its natural mean. Coupled with big infusions of Poles and other East Europeans during the 2000′s, and the undeniable but modest boost that great wealth can make to IQ, it is probably not that surprising that in the PISA tests the Irish have converged with the West European mainstream.

Note that according to my estimates derived from PISA/TIMMS and Rinderman’s, even today countries with ultra-high rates of emigration such as Moldova (86/92), Georgia (83/88), Armenia (96/93), and Kyrgyzstan (75/70) also have extremely low IQ results relative to where we would intuitively expect them to be. Armenians are the closest genetic relatives of Ashkenazi Jews, who are (in)famous for being well above average; furthermore, Armenians have typically been more educated than average, and quite a lot of Soviet chess Grandmasters were Armenian or part-Armenian. Moldovans are crudely East Slavs and Romanians, and “should” be somewhere in the low 90′s (although note that both Ukraine and especially Romania have had very substantial emigrations of their own). Georgians are crudely Greeks and Turks, and basically something like a fourth of them left – both during the Soviet era, and especially during the 1990′s. The Kyrgyz are a Turkic and Mongoloid-like people, and as with the Georgians, about a quarter of them have left for greener pastures. Though it should be noted that Kyrgyzstan has one of the highest rates of consanguineous marriage in the world (i.e. inbreeding) and that this is surely a huge additional depressant on their IQ.

In short, PISA data suggests that mass emigration – especially when ongoing for a long time – has a very significant dysgenic effect on IQ. I do not think it unreasonable to posit that this is the reason why 3,500 Irish schoolchildren scored an average of 87 in IQ tests held in 1972.

(4) While I agree with hbd* chick’s observation that the emigration had a significant dysgenic effect on Irish IQ (see above), unlike her I think that it has been almost entirely remedied by now. She argues that Irish PISA scores only managed to converge with those of France because of its flood of lower-IQ immigrants that brought the national average down. The data doesn’t back this up however. Ireland’s native PISA score in 2009 was 503 (national – 497), not really ALL that different from France’s 508 (497), the UK’s 508 (500), Poland’s 503 (501), etc.

(5) Extrapolating from these spatio-temporal discrepancies in IQ among West European populations, Ron Unz extends the exercise to Mexico and Hispanic immigration in general. He notes that among Mexican-Americans born in the US, the average IQ as derived from Wordsum improved from 85 (i.e. Third World) to 95 (i.e. basically just about enough to build a First World society). This is substantially higher than the average for Mexico today which is something like 88 (me) or 85 (Rinderman). This is of course highly encouraging.

Possible problems. First, what kind of Mexicans? There are huge disparities between the northern predominantly European states, which are basically something like Portugal, to the southern predominantly Amerindian states, which look more like India. Think of it like Italy Extreme (where IQ ranges from 103 in the northern states to low-90′s in the south). As I understand it, the older migrations was primarily from the former region; indeed, part of the Mexican-American population is indigenous, having been conquered in the 19th century. But it is a fact today that Hispanic migration is primarily from southern Mexico and Central America. Will they be as successful in converging to the American average like Europeans and the old Mexican-Americans?

Second, read David Sanders’ response at VDARE. Overall Hispanic scores have remained low, typically in the low 90′s (unfortunately, Sanders seems to conflate Mexican-Americans with Hispanics, which is not really accurate at all; but the main point stands). PISA confirmed those figures both in 2006 and 2009. Part of this stagnation is surely due to the continuing influx of poor Hispanics with bad English skills. Nonetheless, I am not sure it is possible that it is still the main reason today. After all, the US Hispanic population is now very big, at around 16.3% of the total population according to the last Census. As such the influence of new arrivals on the overall group average is now surely quite modest.

Main things to take home. First, if Hispanic average is low 90′s and Mexican-American average is 95, then Hispanic non-Mexican average is probably something like 90. Flynn magic and acclimatization to America may raise it to 95, while Mexican-Americans may eke out a few more points. Still, hard to see them catching up to the US White average of 103 anytime soon. Encouragingly, this is not the kind of awning difference that leads to quasi-caste societies like in South Africa, on the other hand, the differences will still be significant and not helped by the fact that Hispanic culture is quite different from mainstream US white culture.

(6) Also as noted by David Sanders you could just as easily use isolated test data to argue that being rich LOWERS your IQ. Because for every Greece and Ireland …

Country IQ at Point 1 IQ at Point 2 IQ Change Annual GDP Per Capita Increase Time Gap Between Tests (years)
East Germany 90 99 +9 $769 (using Czech figures) 11
Greece 88 95 +7 $6047 18
Ireland 87 98 +11 $1191 7

There is a France and an Israel.

Country IQ at Point 1 IQ at Point 2 IQ Change GDP Per Capita Increase Time Gap Between Tests (years)
Israel 97 90 -7 $5276 14
Poland 106 92 -14 $561 10
Portugal 101 88 -13 $1073 8
France 99.5 (average of two studies) 94 -5.5 $9630 17

Lynn and Vanhanen’s data is valid for general conclusions because at the large scale noise is smoothed out, but it is very dangerous to use it to illustrate individual examples. Even today, if you look at the geography of PISA test results in the US – a STANDARDIZED test to boot, unlike the IQ tests compiled by L. & V. – there will still be significant differences even in White results which range from about 96 in West Virginia to 106 in Massachusetts. This is perfectly natural and to be expected because of internal migration and cognitive clustering patterns that have lasted decades and centuries.

(7) “Among the higher performing white American groups are the Irish, the Greeks, the Yugoslavs, and the Italians, while Americans of Dutch extraction are near the bottom for whites, as are oldstock Americans who no longer identify with any European country but are presumably British in main ancestry. Meanwhile, German-Americans are generally at or slightly below the white American average.”

Several things we have to bear in mind: (a) Ultimately modest initial differences (especially once we account for linguistic issues in the 1920′s immigrant tests discussed above); (b) Intermarriage which has been very substantial and smooths out ethnic differences in the urban areas; (c) Unz’s own observation – with which I’m fully agreed as it seems to be universal! – that urban dwellers tend to perform better on IQ tests than rural dwellers all other things being equal (as Marx observed: “Idiocy of rural life”).

(8) I notice that Ron Unz steers clear of the elephant in the room as regards theories of IQ as predominantly a product of culture – US Blacks. Problem is, they are more urban than whites; so can’t use the reasoning in the previous point. And as discussed very extensively in The Bell Curve (Murray & Herrnstein), no, this is not because IQ tests are culturally biased or because Blacks just don’t care about them. US Black IQ’s be they derived from SATS or PISA or other tests pretty much all now consistently show them as being in the high-80′s. The Black White gap shrank slowly until the 1990 but since then progress has stalled or even reversed. The sad but logical conclusion is that their genetic IQ potential as a group is now more or less maxed out. It would be interesting to see how Ron Unz would try to explain this away.

Another element of Lynn’s and Vanhanen’s more recent work (e.g. The Global Curve) that has not been tackled is the remarkably consistent tendency for the exact same racial patterns to reproduce themselves all over the world in different countries and within radically different cultural milieus and across time that feature similar hierarchies in economic success, crime, IQ, etc: East Asians, then Whites, then South-East Asians, Indians, and/or Hispanics; then Blacks. It is hard, very hard indeed, to think of any theory that can account for this that doesn’t lean heavily on genetic determinism.

Despite all these caveats and criticisms, it need be borne in mind that only a pure ideologue would argue that IQ is solely genetically determined. Indeed, the Flynn Effect – mostly composed of better nutrition (we can deduce this partly because it is the poorest performers who tend to make the biggest gains, and that furthermore, the Flynn Effect petered out in White countries at just about the time that their average human heights reached a plateau) and various other things such as familiarity with standardized tests – is very significant, typically adding a massive 15-20 IQ points overall (compare US Blacks with scores in the high-80′s, adjust down to 85 to take into account 20% white admixture, then consider that the Ghanans, Nigerians, etc. among whom Flynn hasn’t had much chance to take root yet, score around 65-70). Also of huge significance is the geography of cognitive clustering which has been discussed here in the context of dysgenic emigration, as well as in the cases of some countries, the culturally-mediated factor of consanguineous marriage (which however takes a long time to fix even disregarding the cultural barriers to dismantling such systems).


In an addendum to the initial article, Ron Unz writes about The East Asian Exception to Socio-Economic IQ Influences. He notes that while (Flynn-adjusted) South and East European scores improved form the 88-94 range, this was much less true for the East Asian nations which started off with very high scores even in the 1950′s and 1960′s and only made very marginal improvements to the present day. Ironically, Unz’s explanation for this is primarily genetic and I DISAGREE with it.

The most plausible inference from these decades of accumulated data is that the IQs of East Asian peoples tend to be more robust and insulated against the negative impact of cultural or economic deprivation than those of European groups or various others—a truly remarkable finding. This might be due to cultural factors of some type, or perhaps certain aspects of East Asian spoken or written languages. But a fascinating possibility is that this IQ robustness may have a substantially genetic component. … Over one hundred years ago, The Changing Chinese by A.E. Ross, one of America’s greatest early sociologists, provided copious anecdotal evidence indicating greater Chinese resistance to illness and injury and perhaps even an ability to survive on more meager food rations. Certainly these sorts of traits might be expected to have undergone strong selection in a country such as China, whose huge population had lived many centuries at the absolute Malthusian edge of starvation.

Here I would note several things:

(a) While on paper East Asian GDP’s – especially outside Japan – were indeed quite a lot lower than those of Southern and Eastern Europe in the 1950′s and 1960′s, it does not necessarily follow that there was a huge corresponding difference in food availability. Asian agricultural technology was always advanced relative to their actual level of economic development, and their diets were probably better balanced than in the Mediterranean and almost certainly better balanced than in East-Central Europe.

(b) Sampling issues. This requires further investigation, but it is very important to be nationally representative given cognitive clustering. E.g., people are far brighter in Shanghai or Beijing than in Henan.

(c) “For consistency, all these results are drawn directly from Lynn/Vanhanen, and include their Flynn and other IQ adjustments up and down, several of which seemed rather large and arbitrary…” I.e., if the Flynn adjustments seem “rather large”, then logically the earlier IQ results should be lower than otherwise stated; and hence, the gain thanks to the Flynn Effect correspondingly larger.

(d) In a famous book on China by the American missionary Arthur H. Smith, titled “Chinese Characteristics” and published in the 1890′s, he expresses a low opinion of Chinese intellectual acumen at the time. In a chapter tellingly called “Intellectual Turbidity“, he notes that the great mass of Chinese are seemingly incapable of abstract logical reasoning, WHEREAS Chinese scholars – though understandably few in number, considering the country’s underdevelopment – can display impressive intellectual acumen. This makes total sense given what we now know of psychometrics and life in traditional societies. The masses have peasant-like mentalities and are illiterate and malnourished, which translates into very low IQ’s; the scholars, however, are fairly well nourished and literate and urban and high-IQ, and thus can communicate at Smith’s level. However, as there are so few of them, the characteristics of the dull peasant masses predominate at the average national level so the national IQ level is very low. Today however the Chinese IQ is well above 100 however you measure it. This is the Flynn Effect in action over a century, in China as everywhere else.

So, East Asians probably aren’t as much of an Exception as Ron Unz presents them as. Or not an exception at all. Arguably using them to try to prove that Lynn and Vanhanen scored a “game-ending own goal” is kind of an own goal to Unz’s own minimization of the genetic component of IQ.


In conclusion, I think the Flynn Effect DID act on East Asian societies, though it is plausible that it was not to such a high degree as in European societies for cultural, environmental, or genetic reasons. And as with Europeans they have now maxed out their potential (Japan, Korea, Taiwan) or come close to it (China). However US Blacks also seem to have maxed out their potential and at levels very significantly (1 S.D.) below those of both US Whites / Anglo-Germanic Europe and East Asians. Coupled with lots of other evidence this to me convincingly suggests a strong racial component to group average IQ differences.

Mexican-Americans and especially US Hispanics (who still have many immigrants among them) can still make very substantial gains but given the very big gap between them and US Whites, I am skeptical that they will be able to close it it in the future by themselves. That said intermarriage rates between native-born Hispanics and non-Hispanics are quite high so I expect them to gradually blend in with the US population over the next century. Perhaps a more critical difference from prior European immigrants apart from the lower IQ of Amerindian-stock Hispanic immigrants is that they come from or via a nation contiguous with the US. This lack of distance means that they will be better able to maintain their culture within the US, and the US will slowly become a more “Latinized” country although they will not ever feasibly come to exercise a dominant cultural influence.

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Now that I’m done with the Necessary Caveats, it’s time we had a look at why exactly HBD/IQ theories are both valid, and relevant to the real world. As I see it, their main import (as interpreted by me) can be distilled into a few logically consecutive, falsifiable statements:

  1. IQ tests are a valid, culturally fair measure of cognitive ability.
  2. It is hereditary.
  3. Race is real.
  4. There are racial/ethnic differences in average IQ that cannot be explained merely by reference to socio-economic or cultural factors.
  5. The US is an excellent “laboratory” to ascertain the average genetic IQ ceiling of different races and ethnicities.
  6. Average IQ influences prosperity, and general living standards.
  7. Consequently, knowing the racial constraints on average IQ’s – i.e., the IQ ceilings – we can estimate the relative development potential of different countries and regions.

All of them have have acquired a great deal of supporting evidence, even though they – or in particular, their linkage – remains taboo for the media and wider public discussion. By the numbers:

1. There is typically a large degree of correlation between various IQ tests, and academic achievement scores (1, 2). Nobody has yet discovered a test which has a negative correlation with a battery of other tests. This implies that there is a common “g factor” behind all types of cognitive ability.

Obviously this allows for very big variations within a single person. But within a group, someone who does well in one test will most likely also do well in another.

The argument that IQ tests are culturally biased is frequently made on the basis that they show differences in performance between racial/ethnic groups. This is a fallacy. In any case, there are IQ tests designed to be culturally fair insofar as they eschew words and test pattern recognition, such as Cattell Culture Fair III and Raven’s Progressive Matrices. These tests have a high correlation with the battery of other tests, i.e. they are valid reflections of g.

2. The scientific literature converges on a range from 40%-80% for IQ heritability. (1, 2) The correlation in scores between twins reared apart is around 75%-80%.

3. Is race a social construct? The commonsense answer is no. Consider that beyond the “my lying eyes” stuff (e.g. skin color/melanin content; epicanthic folds, etc.), there is also evidence of genetic differences in: Physical abilities (west African sprinters; Kenyan marathoners); conformity (Asians); lactose tolerance (whites); alcohol intolerance (Asians); even average penis size (large – Africa; Latin America; small – East Asia). The latter example isn’t nearly as… flippant as it seems, since testosterone levels have a large effect on behavior. There are multiple genetic disorders that only affect certain races or ethnicities, and race specific drugs are now coming online.

But ultimately, this is one of those cases where a picture is worth a thousand words.

This is a genetic map of Europe, superimposed on a geographic map (remarkable how it works out almost perfectly). Note that although there is some degree of overlap between European ethnicities, there are still clear clusters and centers of gravity corresponding to particular nationalities.

Now look at this genetic map (click to enlarge). See that dark blue oval to the center-left? That is Europe. Recall that even within that tiny space there are distinct clusters, with virtually zero overlap between, say, Greeks and Germans. Now note the vast distance that separates Europe from East Asia (center-right), and the three African clusters (bottom).

So it’s really just a minor matter of semantics. Some people shy away from using the word “race”, instead speaking of “genetic clusters”, “population groups”, “groups of common geographic ancestry”, etc. “Race” is short and convenient.PI

4. There is a vast body of global IQ scores (e.g. Lynn). They follow a consistent pattern: East Asian countries tend to score 105, European and Euro-settler countries 100, and sub-Saharan African countries 65-80.

The internationalized standardized PISA tests display the same pattern (as expected, since they load on the same g).

(Internationally, I think the culture argument makes some interesting points. E.g., the Protestant work ethic – reflected even now in the fact that the world’s richest and highest-IQ white countries tend to be Protestant. But there are two problems. First, possible narrative fallacy, e.g. Confucianism, with its connotations of traditionalism and conservatism, was once used to explain why Asian countries lagged behind Europe; but with their success in the past generation, the respect for learning, rule of law, etc. that it supposedly instilled is now sometimes used to explain their success! Can’t have it both ways. Second, what applies in one period can wane in another. Yes, Protestantism fostered human capital development by emphasizing independent Bible reading (i.e. more literacy!), which in turn helped early industrial growth. But today this effect seems to have receded into the past – see the success of south Germany, north Italy, France, Ireland.)

5. The US is an excellent “laboratory” to estimate the average genetic IQ ceiling of different races and ethnicities by virtue of its diversity; standardized education system that produces results that, when broken down by race, are superior to almost every other country in the world; decent equality of educational opportunity; no nutritional deficit among any population group; and post-Flynn effect status.

Within the US, all tests of cognitive ability – IQ, PISA (1, 2), SAT – replicate the global pattern. Though there is variance from test to test, but as a rule, the intelligence hierarchy is as follows: Asian-Americans; whites; Hispanics; blacks. The gaps between Asian-Americans and whites are narrowed than internationally (because Asian-Americans also include medium-IQ peoples like Filipinos and Vietnamese); and the gaps between whites and blacks are narrowed (because, unlike African or Haitian blacks, African-Americans enjoy better nutrition and education.

It must also be noted that whereas most of these tests indicate that Asians closed gaps (in reading, writing) and overtook whites (in math) over the years, there has been no sign of any significant convergence for blacks.

Is it because schools in poorer areas (inner city, where NAM’s cluster) are badly funded? No, per student funding tends to be broadly similar for both inner city and suburban schools. Besides, education funding doesn’t play a major role in results. In Italy, there is no correlation between school funding and performance by province. China gets PISA and IQ results higher than America’s despite spending a tiny fraction of the resources that the US lavishes on each of its pupils. Indeed, it probably doesn’t matter much, as IQ tends to be fixed by the age of the 5.

Is it because blacks come from poorer families on average? IQ is a far more persuasive explanation for why people are poor in the first place. Refer to The Bell Curve (Murray & Herrnstein).

US blacks (85-90) get far better IQ scores than Africans (65-80). These two facts are highly important because in Africa, the IQ’s of many populations are currently constrained by poor nutrition and (in some cases) the different psychologies of pre-industrial and illiterate peoples. In practice, and discounting variation (Africa is the world’s most genetically diverse continent, so it is not impossible that there will be some relatively high-IQ subgroups among them), it seems likely that the average IQ ceiling for African blacks is similar to the actual IQ’s of US blacks. I.e., maybe 85 (lower than 85-90, because US blacks have 20% admixture with whites).

US Hispanics score better than Mexicans or Central Americans, displaying IQ’s (or IQ equivalents) in the low 90′s (Mexico: 88-90; Panama: 84-80). Whites are at around 100. Asian-Americans tend to be in the low to mid 100′s, but there is huge variance (East Asians – higher; South-East Asians – lower).

7. Refer to Education as the Elixir of Growth III. There is a 0.43 correlation between the GDP (PPP) per capita of a country with its PISA/TIMMS scores, which rises to a stunning 0.84 once countries with a post-Communist legacy (low outliers), resource windfalls (high outliers), or offshore financial industries that constitute the bulk of their GDP (high outliers) are removed from the same. (Any correlation of >0.5 is an excellent one in social science). This implies a fairly rigid glass ceiling on GDP per capita for any one country in relation to its IQ. It’s largely invisible, as few people appreciate the importance of human capital to growth, but it’s most certainly there.

At the micro level, the g factor tends to be by far the best indicator of job performance (above grades, interviews, references, etc) – not only in “cognitive elite” jobs such as lawyers or physicians, but also to a significant extent even among menial workers. There is a correlation of 0.9-0.95 between employees in a certain profession and prestige ratings of those professions by the general public. The correlation between IQ and income is around 0.4-0.5.

The importance of average genetic IQ ceilings

We have a fairly strong and convincing (to me anyway) theory that average IQ ceilings depends on race, and that IQ (g, PISA scores, etc) are remarkable closely correlated with economic prosperity. Furthermore, it is almost certain that the causation is largely one way, at least once basic nutritional and literacy problems are solved; otherwise, the Chinese and Koreans would not be outperforming US Hispanics or African-Americans.

Following from the graph of Human Capital Index and income above, there seems to be a point past 450 – about 92.5, in IQ terms – at which (market-based) economies transition from middle-income status, to high-income. If Mexico could raise its human capital to about the levels of their compatriots in the US, this would (going by correlations) enable a massive expansion in its productivity.

Unfortunately, the average genetic IQ ceiling for African blacks is 85, maybe 90 at most. Nonetheless, if Africa could consistently raise it to even the former figure, it would then have a degree of human capital equivalent to today’s Brazil. Though true convergence with developed countries is precluded, reaching Brazil’s levels would be a gargantuan improvement for the living standards of the average African.

In general, it should be possible to construct a “potential IQ” (and corresponding potential GDP per capita level) for each country. They would look something like this (PISA/IQ format):

  • US (500/100) – All racial groups are already performing very close to their genetic potential (Asian-Americans (NOT East Asians) – low 100′s, whites – 100, Hispanics – low 90′s, blacks – high 80′s). The challenge will be in maintaining it (due to Hispanic immigration).
  • China (550/108) – It currently has 103(PISA converted into IQ)-105(IQ), but may still eke out a few more points by totally eliminating malnutrition. Should have no problem in becoming as rich as Korea or Japan with one more generation.
  • India (450/92.5) – Very low (and puzzling) 75(PISA)-82. But also malnutrition is still extremely high, as are endemic diseases; the vegetarianism of a significant portion of the population may also have a negative effect (protein aids brain development). My estimate is that average Indian genetic IQ ceiling is similar to Hispanics, but with huge variance due to caste/ethnic diversity.
  • Russia (500/100) – Moderate score at 95(PISA)-97(IQ). Smaller than ethnically similar Poland (99/100), due to 2 possible factors: (1) Academic focus to exclusion of more general g (Russia does much better on TIMMS, PIRLS); (2) Possible effects of highly prevalent alcoholism on the current cohort being tested. Poland’s score may represent a more accurate “Slavic ceiling.” Natural GDP per capita level would seem to be in between the Germanic countries and the Med, but resource windfall would nudge it closer to the former.
  • Brazil (460/94) – Today at 87(PISA)-85(IQ). Capping off the BRIC’s, the potential is derived by taking the estimated genetic ceilings of US blacks (with adjustment for Brazilian blacks having more admixture) with Med Europe ceiling, and weighing by population ratios.
  • Germanic Europe (520/103) – based on current scores, but will face challenge in maintaining it (due to immigration policies).
  • Med Europe (490/99) – based on Spain, Portugal, Italy results. In a way, one can see the Euro crisis – which is mostly affecting the PIGS – as the invisible hand’s way of bumping down the Med countries to a level more in line with their lower human capital (relative to the Germanic countries).
  • Turkey (470/96) – now at 91(PISA)/93(IQ), but potential based on Greece’s current scores; Turks and Greeks genetically similar.
  • Japan (530/105) – as now, no significant change as immigration is low. But economic difficulties due to debt, negative population growth, ballooning elderly dependency ratios.
  • Israel (?) – is globally irrelevant but a really fascinating case study, complicated by the discrepancy between Ashkenazi Euro-Jewish IQ scores (c.115) and Israel’s mediocre performance of 95(IQ)/94(PISA) which is hard to explain as Ashkenazi Jews still make up more than half of Israel’s population. Also lots of demography has to be taken into account. Deserves a separate post.
  • Australia, Canada (520/103) – as now, but will NOT face difficulties maintaining them because of their Cognitive Elitist immigration policies; as they also enjoy resource windfalls, they will probably do economically better than the rest of the developed world.

Based on the figures above, we can expect that the BRIC’s nations should in principle be able to converge to developed country levels. However, there are two major groups within the BRIC’s. China and Russia are already at a human capital level that enables convergence (China’s is significantly higher, but Russia is already richer, and also has the added bonus of a resource windfall). In contrast, Brazil and India are not currently at human capital levels that enable convergence; however, they do both have the potential to raise them to just the levels needed to break out of the “middle-income” trap and converge. But for that they have to develop their human capital to its full genetic potential. The quantity of the needed change is very significant and, even under rosy assumptions (e.g. +3 IQ points a decade until equalization with genetic potential), the process will take decades. Until they at least the low 90′s, they will remain stuck – especially Brazil, because it is already very rich for its human capital level – with fairly low long-term growth rates.

Whatever their average genetic IQ ceilings, it is highly advisable for all the poorer and low-IQ nations to: (1) improve childhood nutrition (e.g. free vitamin pills at schools seems especially low-cost/high-impact); (2) anti-vegetarian propaganda, where such applies; (3) study the experience of foreign countries, esp. the US which has had a lot of success with maximizing NAM scores, and Finland which (at least on PISA) manages to maximize white scores; (4) explore pharmaceutical and technological means of bridging their IQ gaps with the developed world (e.g. nootropics).

(Republished from by permission of author or representative)
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Anatoly Karlin
About Anatoly Karlin

I am a blogger, thinker, and businessman in the SF Bay Area. I’m originally from Russia, spent many years in Britain, and studied at U.C. Berkeley.

One of my tenets is that ideologies tend to suck. As such, I hesitate about attaching labels to myself. That said, if it’s really necessary, I suppose “liberal-conservative neoreactionary” would be close enough.

Though I consider myself part of the Orthodox Church, my philosophy and spiritual views are more influenced by digital physics, Gnosticism, and Russian cosmism than anything specifically Judeo-Christian.