Outline
The book includes the authors' calculation of average IQ scores for 81 countries, based on their analysis of published reports. It reports their observation that national IQ correlates with gross domestic product per capita at 0.82, and with the rate of economic growth from 1950–1990 at 0.64.
The authors believe that average IQ differences between nations are due to both genetic and environmental factors. They also believe that low GDP can cause low IQ, just as low IQ can cause low GDP. (See Positive feedback)
The authors write that it is the ethical responsibility of rich, high-IQ nations to assist poor, low-IQ nations financially, as it is the responsibility of rich citizens to assist the poor.
Read more about this topic: IQ And The Wealth Of Nations
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