![]() The 1981 article "Average IQ values in various European countries" by Vinko Buj is the only international IQ study that over a short time period has compared IQs using the same IQ test. Studies of national cognitive ability "Average IQ values in various European countries" He also writes that genetics cannot be ruled out as a possible cause, but that education surely plays a major role, so one should not conclude that human capital in poor countries can never be improved. Īccording to Hunt, international studies of intelligence are important because they measure which populations possess the cognitive skills that are necessary in a post-industrial world. Richard Lynn and Tatu Vanhanen published the books IQ and the Wealth of Nations and IQ and Global Inequality, which led to further investigations from other researchers, some of them highly critical of Lynn and Vanhanen's methods and conclusions. However, some researchers have argued that differences in average intelligence between nations also play a role. Hunt writes that economists traditionally view differences in wealth between nations in terms of human capital, which is a general term for the abilities of the workforce.
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