TY - JOUR AU - Michalopoulos,Stelios AU - Papaioannou,Elias TI - Divide and Rule or the Rule of the Divided? Evidence from Africa JF - National Bureau of Economic Research Working Paper Series VL - No. 17184 PY - 2011 Y2 - June 2011 UR - http://www.nber.org/papers/w17184 L1 - http://www.nber.org/papers/w17184.pdf N1 - Author contact info: Stelios Michalopoulos Brown University Department of Economics 64 Waterman Street Providence, RI 02912 Tel: 401/863-2506 Fax: 401/863-1970 E-Mail: smichalo@brown.edu Elias Papaioannou London Business School Regent's Park Sussex Place London NW1 4SA United Kingdom Tel: +44 (0) 207000 8432 Fax: +44 (0) 207000 8401 E-Mail: papaioannou.elias@gmail.com AB - We investigate jointly the importance of contemporary country-level institutional structures and local ethnic-specific pre-colonial institutions in shaping comparative regional development in Africa. We utilize information on the spatial distribution of African ethnicities before colonization and regional variation in contemporary economic performance, as proxied by satellite light density at night. We exploit the fact that political boundaries across the African landscape partitioned ethnic groups in different countries subjecting identical cultures to different country-level institutions. Our regression discontinuity estimates reveal that differences in countrywide institutional arrangements across the border do not explain differences in economic performance within ethnic groups. In contrast, we document a strong association between pre-colonial ethnic institutional traits and contemporary regional development. While this correlation does not necessarily identify a causal relationship, this result obtains conditional on country fixed-effects, controlling for other ethnic traits and when we focus on pairs of contiguous ethnic homelands. ER -