Abstract
Nunn (2008) found a negative relationship between past slave exports and economic performance within Africa. Here we investigate these findings and the suggested causal pathway in further detail. Extending the sample period back in time we reveal that the coefficient on slave exports did not become significantly negative until 1970, and that it was close to zero in 1960. One potential explanation for this temporal pattern could be decolonization. But, somewhat puzzlingly, we document a similar downward slope for the relationship between slave raids contemporaneous to the African slave trades and economic performance within Italy. In addition, our reading of the historical and anthropological literature differs from that of Nunn. For instance, taking a global rather than African perspective we find that the African slave trades cannot without difficulties explain the patterns of ethnic fractionalization that we observe today.