Article

Measuring ethnic preferences: New experimental evidence

Ethnic divisions have been shown to adversely affect economic performance and political stability, particularly in Africa. However, the underlying mechanisms remain poorly understood. Using experimental data from Kenya, this column studies whether one potential mechanism – co-ethnic bias – affects altruism. Strikingly, most tests yield no evidence of co-ethnic bias, suggesting that other mechanisms must be driving the negative association between ethnic diversity and economic and political outcomes in Africa.

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