IQ And Global Inequality

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From the Preface: We address the following questions. First, in Chapter 1, we review the major theories of economic growth that have been developed since this problem was considered by Charles de Montesquieu and Adam Smith in the eighteenth century and introduce the 192 countries of this study. In Chapter 2 we define and describe what is meant by intelligence. In Chapter 3, we summarise work showing that intelligence is a determinant of incomes and related phenomena among individuals in a number of countries; this is the basis of our theory that the intelligence of national populations is likely to be a determinant of per capita incomes among nations. Chapter 4 describes how we have collected and quantified the IQs of nations and presents new IQ data for a further 32 nations. This brings the total number of nations for which we have measured IQs to 113. In addition, national IQs are estimated for 79 other countries so that we have IQs for all countries with populations of more than 40,000. In Chapter 5, five measures of the quality of human conditions and their composite index are introduced as well as 12 alternative variables that measure human conditions from different perspectives. In Chapter 6, the hypothesis on the positive relationship between national IQ and the quality of human conditions is tested by empirical evidence on PPP GNI per capita in 2002, adult literacy rate in 2002, tertiary enrollment ratio, life expectancy at birth in 2002, and the level of democratization in 2002. Chapter 7 focuses on the relationship between national IQ and the composite index of the quality of human conditions The results are analyzed at the level of single countries on the basis of regression analyses. The results are checked by exploring the impact of latitude and annual mean temperature on human conditions through national IQ. Chapter 8 shows that national