IQ and the Wealth of Nations

IQ and the Wealth of Nations is a controversial 2002 book by Dr. Richard Lynn, Professor Emeritus of Psychology at the University of Ulster, Northern Ireland, and Dr. Tatu Vanhanen, Professor Emeritus of Political Science at the University of Tampere, Tampere, Finland. The book argues that differences in national income (in the form of per capita gross domestic product) correlate with differences in the average national intelligence quotient (IQ). The authors further argue that differences in average national IQs is one important factor, but not the only one, contributing to differences in national wealth and rates of economic growth. Critical responses have included questioning the methodology and incomplete data as well as the...