This study investigates the impact of malaria eradication programs on black-white economic disparities in the early 1900s US South. Malaria eradication was widespread and improved health across races. Yet, only white men experienced economic benefits. Using matched census records, we find that...

Income inequality between different races in the U.S. is especially large. This difference is even larger when gender is involved. In a complementary study, we have developed a dynamic micro-economic model accurately describing the evolution of male and female incomes since 1930. Here, we extend...

How do social group boundaries evolve? Does the appearance of a new out-group change the in-group's perceptions of other out-groups? We introduce a conceptual framework of context-dependent categorization, in which exposure to one minority leads to recategorization of other minorities when the...