I want to provide some valuable nuggets of information from science. Warning: This page also contains some merely speculative thoughts about randomly chosen topics. ||| Auf diesem Blog finden sich eine Mischung von Auszügen aus primär naturwissenschaftlichen Texten und spekulative Gedanken (bzw. Ideen und persönliche Kurznotizen) zu einer Vielzahl von Themen. Die Bezeichnung "Naturwissenschaftsblog" ist zwar gewagt, reicht aber bis in die Gründungszeit dieses Blogs zurück.
In international comparisons, a high level of racial diversity is associated with a high level of income inequality. One hypothesis proposes that racial diversity leads to increased variance in intellectual ability, which leads to increased income inequality presumably through the action of market forces. A second hypothesis proposes that racially diverse societies are more unequal because they have less social solidarity and less redistribution of wealth from the rich to the poor. The present study investigates the first hypothesis with the results of international school assessment programs (TIMSS and PISA). High racial diversity is found to be related to a greater ability spread on these assessments, but ability variance is not independently related to the Gini index. The second hypothesis is tested with a measure of “big government” that is derived from the economic freedom indices of the Fraser Institute and the Heritage Foundation. Big government is negatively related to both racial diversity and the Gini index.
"If racial diversity favors income inequality, and if advanced postindustrial nations are becoming more diverse in the wake of replacement migration (Coleman, 2002), we can predict a continuing trend towards greater income inequality."