The Evolution of Racial Characteristics
"Much more interesting, because less obvious, is the case [Nicholas] Wade makes for a genetic element in differences in behavior between genetically distinct groups. For example, East Asians consistently come out ahead of Caucasians on tests of intelligence, yet Caucasians dominate by a wide margin in inventiveness. Why is this? Wade asserts, somewhat speculatively but with a lot of evidence, that natural selection has shaped the Chinese and Japanese to form collectively-oriented, hierarchical societies, not favorable to independent thought.