Ethnolinguistic Favoritism in African Politics Andrew Dickensy 10 August 2016 I document evidence of ethnic favoritism in 164 language groups across 35 African countries using a new computerized lexicostatistical measure of relative similarity between each language group and their incumbent national leader. I measure patronage with night light lu- minosity, and estimate a positive effect of linguistic similarity off of changes in the ethnolinguistic identity of a leader. Identification of this effect comes from exogenous within-group time-variation among lan- guage groups partitioned across national borders. I then corroborate this evidence using survey data and establish that the benefits of fa- voritism result from a region's associated ethnolinguistic identity and not that of the individual respondent. yYork University, Department of Economics, Toronto, ON. E-mail:
[email protected]. I am indebted to Nippe Lagerl¨offor his encouragement and detailed feedback throughout this project. I thank Matthew Gentzkow and two anonymous referees for helpful sugges- tions that have greatly improved this paper. I also thank Tasso Adamopoulos, Greg Casey, Mario Carillo, Berta Esteve-Volart, Rapha¨elFranck, Oded Galor, Fernando Leibovici, Ste- lios Michalopoulos, Stein Monteiro, Laura Salisbury, Ben Sand, Assaf Sarid and David Weil for helpful comments, in addition to seminar participants at the Brown University Macro Lunch, the Royal Economic Society's 2nd Symposium for Junior Researches, the PODER Summer School on \New Data in Development Economics", the Canadian Economics As- sociation Annual Conference and York University. This research is funded by the Social Science and Humanities Research Council of Canada. All errors are my own. 1 Introduction Ethnolinguistic group affiliation is a salient marker of identity in Africa.