Lynn (psychology, U. of Ulster) and Vanhanen (political science, U. of Tampere and U. of Helsinki, Finland) argue that the intelligence of nations differ, and the difference manifests in wealth or poverty. They challenge theories that assume intelligence to average out about the same everywhere, and assertions that, for example, African nations are poor because Africans are mentally deficient to be morally offensive. Annotation c. Book News, Inc., Portland, OR (booknews.com)