>more than 96 percent of the subjects tested in psychological studies from 2003 to 2007 were Westerners—with nearly 70 percent from the United States alone.
And I didnt see any data from what happens when they did the "money game" with Europeans, Asians, Africans, even developed South Americans.
"Recent comparative work has dramatically altered this initial picture. Two unified projects (which we call Phase 1 and Phase 2) have deployed the Ultimatum Game and other related experimental tools across thousands of sub- jects randomly sampled from 23 small-scale human societies, including foragers, horticulturalists, pastoralists, and subsistence farmers, drawn from Africa, Amazonia, Oceania, Siberia, and New Guinea"
There's been at least one meta-analysis of data with the game: http://www.econ.nagoya-cu.ac.jp/~yhamagu/ultimatum.pdf It doesn't really come to anything approaching a definitive conclusion though; in general, results vary for reasons that are unclear.
And I didnt see any data from what happens when they did the "money game" with Europeans, Asians, Africans, even developed South Americans.