G2TT
来源类型Discussion paper
规范类型论文
来源IDDP13437
DP13437 Bite and Divide: Malaria and Ethnolinguistic Diversity
Matteo Cervellati; Giorgio Chiovelli; Elena Esposito
发表日期2019-01-09
出版年2019
语种英语
摘要We investigate the epidemiological origins of ethnic diversity and its persistence. First, we conceptualize the role of malaria for the incentives to voluntary isolation in a Malthusian environment. The theory predicts that interactions in multiple geographically clustered groups with high sexual endogamy allowed limiting disease prevalence and increasing group fitness in pre-modern populations exposed to malaria. Second, using disaggregate level data, we document the hitherto unexplored and robust role of malaria for pre-colonial, historical and contemporaneous ethnic diversity in Africa. Third, falsification tests based on malaria epidemiology and history further allow us to validate the specific predictions of the model. No effect can be detected for other placebo vector-borne diseases. Malaria is a main driver of pre-colonial ethnic diversity in Africa but not in the Americas, where the pathogen was absent before European colonization. Fourth, the effect of ancestral malaria on endogamic cultures is the main predicted channel for the persistence of African ethnicities. Exploiting within village variation across 18 African countries, we find that ancestral malaria, but not malaria today, still affects the differential persistence of ethnicities through its legacy of active endogamic cultures.
主题Macroeconomics and Growth
关键词Malthusian theory Ethnic groups Cultural and genetic selection Malaria Endogamy African growth
URLhttps://cepr.org/publications/dp13437
来源智库Centre for Economic Policy Research (United Kingdom)
资源类型智库出版物
条目标识符http://119.78.100.153/handle/2XGU8XDN/542252
推荐引用方式
GB/T 7714
Matteo Cervellati,Giorgio Chiovelli,Elena Esposito. DP13437 Bite and Divide: Malaria and Ethnolinguistic Diversity. 2019.
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