Ray, Debraj - Search Results - UAB Digital Repository of Documents

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33 p, 250.6 KB

Ethnicity and conflict : an empirical study / Esteban, Joan ; Mayoral, Laura ; Ray, Debraj ; Universitat Autònoma de Barcelona. Unitat de Fonaments de l'Anàlisi Econòmica ; Institut d'Anàlisi Econòmica
This paper examines the impact of ethnic divisions on conflict. The analysis relies on a theoretical model of conflict (Esteban and Ray, 2010) in which equilibrium conflict is shown to be accurately described by a linear function of just three distributional indices of ethnic diversity: the Gini coefficient, the Hirschman-Herfindahl fractionalization index, and a measure of polarization. [...]
2010 (Working papers ; 840.10)

22 p, 1.7 MB

Linking conflict to inequality and polarization / Esteban, Joan ; Ray, Debraj ; Universitat Autònoma de Barcelona. Unitat de Fonaments de l'Anàlisi Econòmica ; Institut d'Anàlisi Econòmica
In this paper we study a behavioral model of conflict that provides a basis for choosing certain indices of dispersion as indicators for conflict. We show that the (equilibrium) level of conflict can be expressed as an (approximate) linear function of the Gini coefficient, the Herfindahl-Hirschman fractionalization index, and a specific measure of polarization due to Esteban and Ray.
2009 (Working papers ; 766.09)

$Polarization, fractionalization and conflict$

34 p, 930.2 KB

Polarization, fractionalization and conflict / Esteban, Joan ; Ray, Debraj ; Universitat Autònoma de Barcelona. Unitat de Fonaments de l'Anàlisi Econòmica ; Institut d'Anàlisi Econòmica
A recent upsurge of empirical studies on the causes of conflict attempts to connect various features of the distribution of the relevant characteristic (typically ethnicity or religion) to conflict. The distributional indices differ (polarization, fractionalization or Lorenz-domination) and so do the various specifications of "conflict" (onset, incidence or intensity). [...]
2007 (Working papers ; 703.07)

19 p, 202.3 KB

A Model of ethnic conflict / Esteban, Joan ; Ray, Debraj ; Universitat Autònoma de Barcelona. Unitat de Fonaments de l'Anàlisi Econòmica ; Institut d'Anàlisi Econòmica
We present a model of conflict, in which discriminatory government policy or social intolerance is responsive to various forms of ethnic activism, including violence. It is this perceived responsiveness -captured by the probability that the government gives in and accepts a proponed change in ethnic policy- that induces individuals to mobilize in support for their cause. [...]
2007 (Working papers ; 701.07)

32 p, 786.5 KB

A Comparison of polarization measures / Esteban, Joan ; Ray, Debraj ; Universitat Autònoma de Barcelona. Unitat de Fonaments de l'Anàlisi Econòmica ; Institut d'Anàlisi Econòmica
This paper provides a systematic classification of the different measures of polarization based on their properties. Together with the axioms proposed in Duclos, Esteban and Ray (2004) and in Wang and Tsui (2000) we consider three additional properties. [...]
2007 (Working papers ; 700.07)

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