Tiemann, Thomas; Das, Jayoti; DiRienzo, Cassandra - In: Challenge 49 (2006) 2, pp. 112-120
At lower levels of income, the authors find, nations are more ethnically diverse. As nations become industrialized, their populace becomes more ethnically homogeneous. Finally, as nations move toward the highest levels of income, their populace returns to a more ethnically diverse state. The...