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The political economy of ethnolinguistic cleavages

  • Klaus Desmet


    (Universidad Carlos III de Madrid and CEPR)

  • Ignacio Ortuño-Ortín


    (Universidad Carlos III de Madrid)

  • Romain Wacziarg


    (UCLA, NBER and CEPR)

This paper proposes a new method to measure ethnolinguistic diversity and offers new results linking such diversity with a range of political economy outcomes — civil conflict, redistribution, economic growth and the provision of public goods. We use linguistic trees, describing the genealogical relationship between the entire set of 6, 912 world languages, to compute measures of fractionalization and polarization at different levels of linguistic aggregation. By doing so, we let the data inform us on which linguistic cleavages are most relevant, rather than making ad hoc choices of linguistic classifications. We find drastically different effects of linguistic diversity at different levels of aggregation: deep cleavages, originating thousands of years ago, lead to measures of diversity that are better predictors of civil conflict and redistribution than those that account for more recent and superficial divisions. The opposite pattern holds when it comes to the impact of linguistic diversity on growth and public goods provision, where finer distinctions between languages matter.

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Paper provided by Instituto Madrileño de Estudios Avanzados (IMDEA) Ciencias Sociales in its series Working Papers with number 2009-17.

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Date of creation: 16 Dec 2009
Date of revision:
Publication status: Published in Journal of Development Economics 97(2), March 2012: 322-338
Handle: RePEc:imd:wpaper:wp2009-17
Note: This paper is included in the IMDEA Social Sciences Working Paper Series through the PROCIUDAD-CM Programme
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