Kevin MacDonald writes in his review of Yuri Slezkine‘s book The Jewish Century:
Slezkine imagines that the Gypsies and literate middleman groups like the Jews or Overseas Chinese differ not in intelligence but only in whether they express their intelligence through literacy or an oral culture: “Businessmen, diplomats, doctors, and psychotherapists are literate peddlers, heralds, healers, and fortune-tellers” (p. 29) — a formulation that will not stand the test of current psychometric data. In fact, the general patterns of Gypsies are the opposite of Jews: a low-investment, low-IQ reproductive style characterized by higher fertility, earlier onset of sexual behavior and reproduction, more
unstable pair bonds, higher rate of single parenting, shorter interval of birth spacing, higher infant mortality rate, and higher rate of survival of low birth weight infants.5
Intelligence, for Slezkine, is a lifestyle choice, rather than a set
of brain processes underlying information processing and strongly influenced by genetic variation. As we shall see, this formulation is very useful to Slezkine as he constructs his argument later in the book.
In his attempt to paint with a very broad brush, Slezkine also ignores other real differences among the Mercurians, most notably, I would argue,the aggressiveness of the Jews compared to the relative passivity of the Overseas Chinese. Both the Jews and the Overseas Chinese are highly intelligent and entrepreneurial, but the Overseas Chinese have not formed a hostile cultural elite in Southeast Asian countries, where they have chiefly settled,and have not been concentrated in media ownership or in the construction of culture. We do not read of Chinese cultural movements disseminated in the major universities and media outlets that subject the traditional culture of Southeast Asians and anti-Chinese sentiment to radical critique, or of Chinese organizations campaigning for the removal of native cultural and religious symbols from public places.6 Slezkine paints Jews as deeply involved in the construction of culture and in the politics of the host societies, but the role of the Chinese was quite different. The following passage describing the political attitudes of the Overseas Chinese in Thailand could never have applied to Jews in Western societies since the Enlightenment:
“But few seem to know or indeed to care about the restrictions on citizenship, nationality rights, and political activities in general, no rare these restrictions given much publicity in the Chinese press. This merely points up the fact, recognized by all observers, that the overseas Chinese are primarily concerned with making a living, or amassing a fortune, and thus take only a passive interest in the formal political life of the country in which they live.”