Abstract
<jats:p>This paper studies the long-run impacts of diasporas on local economic development. We do so in the context of one of the most economically influential diasporas: the ethnic Chinese in Southeast Asia. Our instrumental variables strategy exploits 15th-century landing sites on Java that shaped subsequent Chinese settlement but lost maritime access due to 17th-century silting. We find that a 1p.p. higher Chinese share in 1930 leads to 9.4% higher household consumption and 26% higher population today. These effects attenuate sharply during the 1997-1998 crisis, then recover. We find strong effects on firm sales driven by improved financing through local private networks but not through exports. We provide suggestive evidence for the key role of historical ethnic-trading networks within Java. Our findings suggest that despite their small size, ethnic minorities with durable complementarities can play an out-sized, positive role in local economic development.</jats:p>