Более современные свидетельства, подтверждающие эти выводы: Alberto Alesina, Reza Baquir, and William Easterly. Public Goods and Ethnic Divisions // Quarterly Journal of Economics. 1999. № 114. P. 1243–1284; Edward Miguel and Mary Kay Gugerty. Ethnic Diversity, Social Sanctions, and Public Goods in Kenya // Journal of Public Economics. 2005. № 89. P. 2325–2368.
