Despite significant advances in the disaggregation of the study of civil conflict and intra-ethnic violence, intra-ethnic violence remains understudied. In this article, we present the first systematic, cross-national analysis of the conditions that promote violent, fragmentary conflict within politically active ethnic minorities. We propose a model of intra-ethnic conflict in which collective violence is produced by the interaction between subgroup entrepreneurs and the suppressive actions of the state. This two-level model predicts a curvilinear relationship between the relative size of an ethnic minority and its probability of experiencing large-scale intra-ethnic conflict. Additional hypotheses based on the proposed causal mechanism are also posited. These hypotheses are tested with data drawn from a global sample of politically active ethnic minorities, for the period 1990 through 2006, using a combination of parametric and semi-parametric regression techniques. The results strongly confirm the predicted curvilinear relationship while also demonstrating that the specific shape of this relationship shifts in predictable ways under varying social and political contexts.
AkinteyeAkin. 1999. “Intra-ethnic Conflicts among the Yoruba: A Case of Igbo Ora.” In Community Conflicts in Nigeria: Management, Resolution and Transformation, edited by OtiteOniguAlbertIsaac Olawale, 83–117. Oxford, UK: Spectrum Books.
2.
AlesinaAlbertoSpolareEnrico. 2003. The Size of Nations. Cambridge, MA: MIT Press.
3.
AndersonBenedict. 1991. Imagined Communities: Reflections on the Origin and Spread of Nationalism, 2nd ed. New York: Verso.
4.
AsalVictorBrownMitchellDaltonAngela. 2012. “Why Split? Organizational Splits among Ethnopolitical Organizations in the Middle East.”Journal of Conflict Resolution56:94–117.
5.
AzamJean-Paul. 2001. “The Redistributive State and Conflicts in Africa.”Journal of Conflict Resolution38:429–44.
6.
BahryDonnaKosolapovMikhailKozyrevaPolinaWilson RickK.. 2005. “Ethnicity and Trust: Evidence from Russia.”The American Political Science Review99:521–32.
7.
Banjo“Wale” Segun. 1998. Oil and Intra-ethnic Violence in South-eastern Nigeria: The Internationalisation of Ogoni crisis. Ibadan, Nigeria: Emmi Press International.
8.
BarthFredrik. 1969. Ethnic Groups and Boundaries. Boston, MA: Little, Brown.
9.
BatesRobert H.1983. “Modernization, Ethnic Competition, and the Rationality of Politics in Contemporary Africa.” In State Versus Ethnic Claims: African Policy Dilemmas, edited by RothchildDonaldOlunsorolaVictor A., 152–71. Boulder, CO: Westview Press.
10.
BeckNathanielKatzJonathan N.TuckerRichard. 1998. “Taking Time Seriously: Time-series-cross-section Analysis with a Binary Dependent Variable.”American Journal of Political Science42:1260–88.
11.
BermanEliLaitinDavid D.. 2008. “Religion, Terrorism and Public Goods: Testing the Club Model.”Journal of Public Economics92:1942–67.
12.
BhavnaniRaviMiodownikDan. 2009. “Ethnic Polarization, Ethnic Salience, and Civil War.”Journal of Conflict Resolution53:30–49.
13.
BlackG. S.1974. “Conflict in Community: Theory of Effects of Community Size.”American Political Science Review68:1245–61.
14.
BonacichPhillipShureGerald H.KahanJames P.MeekerRobert J.. 1976. “Cooperation and Group Size in the N-person Prisoner's Dilemma.”Journal of Conflict Resolution20:687–706.
15.
BrassPaul. 1997. Theft of an Idol. Princeton, NJ: Princeton University Press.
16.
BrynenRex. 1995. “The Neopatrimonial Dimension of Palestinian Politics.”Journal of Palestinian Studies25:23–36.
17.
Bueno deMesquitaGeorge W. DownsBruce,SmithAlastairCherifFeryal M.. 2005. “Thinking Inside the Box: A Closer Look at Democracy and Human Rights.”International Studies Quarterly49:439–57.
18.
BuhaugHalvardCedermanLars-ErikRødJan Ketil. 2008. “Disaggregating Ethno-nationalist Civil Wars: A Dyadic Test of Exclusion Theory.”International Organization62:531.
19.
CarterDavid B.SignorinoCurtis S.. 2010. “Back to the Future: Modeling Time Dependence in Binary Data.”Political Analysis18:271–92.
20.
CaspersenNina. 2008. “Intragroup Divisions in Ethnic Conflicts: From Popular Grievances to Power Struggles.”Nationalism and Ethnic Politics14:239–65.
21.
CedermanLars-ErikWimmerAndreasMinBrian. 2010. “Why Do Ethnic Groups Rebel?”World Politics62:87–119.
22.
CedermanLars-ErikBuhaugHalvardRødJan Ketil. 2009. “Ethno-nationalist Dyads and Civil War: A GIS-based Analysis.”Journal of Conflict Resolution53:496–525.
23.
CedermanLars-ErikGleditschKristianWeidmannNils. 2011. “Horizontal Inequalities and Ethno-nationalist Civil War.”American Political Science Review105:478–95.
CedermanLars-ErikGirardinLucGleditschKristian Skrede. 2010. “Ethno-nationalist Triads: Assessing the Influence of Kin Groups on Civil Wars.”World Politics61:403–37.
26.
ChanAngela Fuhn. 2004. “The Global Enclave Model: Economic Segregation, Intra-ethnic Conflict, and the Impact of Globalization on Chinese Immigrant Communities.”Asian American Policy Review13:21–60.
27.
ChandraKanchan. 2004. Why Ethnic Parties Succeed: Patronage and Ethnic Headcounts in India. Cambridge: Cambridge University Press.
28.
CollierPaulHoefflerAnke. 2004. “Greed and Grievance in Civil War.”Oxford Economic Papers56:563–95.
29.
ConnorWalker. 1994. Ethno-nationalism: The Quest for Understanding. Princeton, NJ: Princeton University Press.
30.
CunninghamDavidGleditschE.Kristian SkredeSalehyanIdean. 2009. “It Takes Two: A Dyadic Analysis of Civil War Duration and Outcome.”Journal of Conflict Resolution53:570–97.
31.
CunninghamKathleen Gallagher. 2011. “Divide and Conquer or Divide and Concede: How States Respond to Internally Divided Separatists.”American Political Science Review105:275–97.
32.
CunninghamKathleen GallagherBakkeKristin M.SeymourLee. 2012. “Shirts Today, Skins Tomorrow: Dual Contests and the Effects of Fragmentation in Self-determination Disputes.”Journal of Conflict Resolution56:67–93.
33.
DavenportChristian. 2004. “Human Rights and the Promise of Democratic Pacification.”International Studies Quarterly48:539–60.
34.
DavenportChristian. 2007a. “State Repression and the Tyrannical Peace.”Journal of Peace Research44:485–504.
35.
DavenportChristian. 2007b. State Repression and the Domestic Democratic Peace. New York: Cambridge University Press.
36.
DavenportChristianArmstrongDavid A.II2004. “Democracy and the Violation of Human Rights: A Statistical Analysis from 1976–1996.”American Journal of Political Science48:538–54.
37.
DeutschKarl Wolfgang. 1953. Nationalism and Social Communication: An Inquiry into the Foundations of Nationality. Cambridge, MA: MIT press.
38.
DeNardoJames. 1985. Power in Numbers: The Political Strategy of Protest and Rebellion. Princeton: Princeton University Press.
DriscollJesse. 2012. “Commitment Problems or Bidding Wars? Rebel Fragmentation as Peace Building.”Journal of Conflict Resolution56:118–49.
41.
DuffyGavanLindstromNicole. 2002. “Conflicting Identities: Solidary Incentives in the Serbo-Croatian War.”Journal of Peace Research39:69–90.
42.
EllingsenTanja. 2000. “Colorful Community or Ethnic Witches' Brew? Multiethnicity and Domestic Conflict during and after the Cold War.”Journal of Conflict Resolution44:228–49.
43.
EstebanJoanRayDebraj. 2001. “Collective Action and the Group Size Paradox.”American Political Science Review95:663–72.
44.
EstebanJoanRayDebraj. 2008. “Polarization, Fractionalization and Conflict.”Journal of Peace Research45:163–82.
45.
FearonJames D.LaitinDavid D.. 1996. “Explaining Interethnic Cooperation.”American Political Science Review90:715–35.
46.
FearonJames D.LaitinDavid D.. 2000. “Violence and the Social Construction of Ethnic Identity.”International Organization54:845–77.
47.
FearonJames D.LaitinDavid D.. 2003. “Ethnicity, Insurgency, and Civil War.”American Political Science Review97:75–90.
48.
FearonJames D.KasaraKimuliLaitinDavid D.. 2007. “Ethnic Minority Rule and Civil War Onset.”The American Political Science Review101:187–93.
49.
FjeldeHanneNilssonDesirée. 2012. “Rebels Against Rebels: Explaining Violence between Rebel Groups.”Journal of Conflict Resolution56:604–28.
50.
ForsbergErika. 2008. “Polarization and Ethnic Conflict in a Widened Strategic Setting.”Journal of Peace Research45:283–300.
51.
FotiniChristia. 2008. “Following the Money. Muslim Versus Muslim in Bosnia’s Civil War.”Comparative Politics43:461–80.
52.
FoxJohnGuyerMelvin. 1977. “Group Size and Others’ Strategy in an N-person Game.”Journal of Conflict Resolution21 (2): 323–38.
53.
GarfinkelMichelle R.2004. “On the Stability of Group Formation: Managing the Conflict Within.”Conflict Management and Peace Science21:43–68.
54.
GeertzClifford. 1973. “The Integrative Revolution: Primordial Sentiments and Civil Politics in the New States.” In The Interpretation of Cultures, edited by GeertzClifford, 105–57. New York: Basic Books.
55.
GellnerErnest. 1983. Nations and Nationalism. Oxford, UK: Blackwell.
56.
GorenburgDmitry. 2000. “Not with One Voice: An Explanation of Intragroup Variation in Nationalist Sentiment.”World Politics53:115–42.
57.
GreenP. J.SilvermanB. W.. 1994. Nonparametric Regression and Generalized Linear Models: A Roughness Penalty Approach. New York: Chapman and Hall.
58.
HamburgerHenryGuyerMelvinFoxJohn. 1975. “Group Size and Cooperation.”Journal of Conflict Resolution19:503–31.
59.
HardinRussell. 1995. One for All: The Logic of Group Conflict. Princeton, NJ: Princeton University Press.
60.
HastieTrevor J.TibshiraniRobert J.FriedmanJerome. 2001. The Elements of Statistical Learning: Data Mining, Inference, and Prediction. New York: Springer.
61.
HechterMichael. 1987. Principles of Group Solidarity. Berkeley: University of California Press.
62.
HegreHåvardRaleighClionadh. 2009. “Population Size, Concentration, and Civil War. A Geographically Disaggregated Analysis.”Political Geography28:224–38.
63.
HegreHåvardSambanisNicholas. 2006. “Sensitivity Analysis of Empirical Results on Civil War Onset.”Journal of Conflict Resolution50 (4): 508–35.
64.
HirschmanA. O.1970. Exit, Voice, and Loyalty: Responses to Decline in Firms, Organizations, and States. Cambridge, MA: Harvard University Press.
65.
HislopeRobert. 1997. “Intra-ethnic Conflict in Croatia and Serbia: Flanking and the Consequences for Democracy.”East European Quarterly30:471–94.
66.
HorowitzDonald L.1985. Ethnic Groups in Conflict. Berkeley: University of California Press.
67.
JinaduL. Adele. 2004. “Explaining and Managing Ethnic Conflict in Africa: Towards a Cultural Theory of Democracy.”African Journal of Political Science9:1–26.
68.
KalyvasStathis N.1999. “Wanton and Senseless? The Logic of Massacres in Algeria.”Rationalityand Society11:243–85.
69.
KalyvasStathis N.2003. “The Ontology of ‘Political Violence’: Action and Identity in Civil Wars.”Perspectives on Politics1:475–94.
70.
KalyvasStathis N.2008. “Ethnic Defection in Civil War.”Comparative Political Studies41:1043–68.
71.
KimHyejin. 2006. “International Ethnic Networks and Intra-ethnic Conflict: Ethnic Trust and its Demise among Koreans in China.”PhD diss., Rutgers Graduate Program in Global Affairs.
72.
KingRyan D.WheelockDarren. 2007. “Group Threat and Social Control: Race, Perceptions of Minorities and the Desire to Punish.”Social Forces85:1255–80.
73.
KrasnerStephen D.1999. Sovereignty: Organized Hypocrisy. Princeton, NJ: Princeton University Press.
74.
LakeDavid A.RothchildDonald. 1996. “Containing Fear: The Origins and Management of Ethnic Conflict.”International Security21:41–75.
75.
LichbachMark Irving. 1995. The Rebel's Dilemma. Ann Arbor: University of Michigan Press.
76.
LiljaJannieHultmanLisa. 2011. “Intra-ethnic Dominance and Control: Violence Against Co-ethnics in the Early Sri Lankan Civil War.”Security Studies20:171–97.
77.
LinTse-MinWuChin-EnLeeFeng-Yu. 2006. “Neighborhood Influence on the Formation of National Identity in Taiwan: Spatial Regression with Disjoint Neighborhoods.”Political Research Quarterly59:35–46.
78.
LyallJason. 2010. “Ethnicity and Violence During Civil War: An Analysis of ‘Sweep’ Operations in Chechnya.”American Political Science Review104:1–20.
79.
MAR (Minorities at Risk Project). 2009. Minorities at Risk Dataset. College Park, MD: Center for International Development and Conflict Management. Accessed April 26, 2011. http://www.cidcm.umd.edu/mar/.
80.
MarshallMonty G.JaggersKeithGurrTed. 2009. Polity IV Project: Political Regime Characteristics and Transitions, 1800-2002. Version p4v2008 [Computer File]. College Park, MD: Center for International Development and Conflict Management, University of Maryland. Accessed May 11, 2013. http://www.cidcm.umd.edu/inscr/polity/index.htm.
81.
MeulemanBartDavidovEldadBillietJaak. 2009. “Changing Attitudes Toward Immigration in Europe, 2002–2007: A Dynamic Group Conflict Theory Approach.”Social Science Research38:352–65.
82.
MontalvoJosé G.Reynal-QuerolMarta. 2005. “Ethnic Polarization, Potential Conflict, and Civil Wars.”The American Economic Review95:796–816.
83.
MünsterJohannes. 2007. “Simultaneous Inter- and Intra-group Conflicts.”Economic Theory32:333–52
84.
OlsonMancur. 1965. The Logic of Collective Action: Public Goods and the Theory of Groups. Cambridge, MA: Harvard University Press.
85.
PosnerDaniel. 2004. “The Political Salience of Cultural Difference: Why Chewas and Tumbukas are Allies in Zambia and Adversaries in Malawi.”American Political Science Review98:529–45.
86.
RamsayKristopher W.2008. “Settling it on the Field: Battlefield Events and War Termination.”Journal of Conflict Resolution52:850–79.
87.
Reynal-QuerolMarta. 2002. “Ethnicity, Political Systems, and Civil War.”Journal of Conflict Resolution46:29–54.
88.
RiphenburgCarol J.2005. “Ethnicity and Civil Society in Contemporary Afghanistan.”Middle East Journal59:31–51.
89.
RohnerDominic. 2007. “Reputation, Group Structure and Social Tensions”. Unpublished manuscript, University of Cambridge, Cambridge, MA.
90.
ShilsE.1995. “Nation, Nationality, Nationalism and Civil Society.”Nations and Nationalism1:93–118.
91.
SmithAnthony. 1986. The Ethnic Origins of Nations. Oxford, UK: Blackwell.
92.
StanilandPaul. 2012. “Between a Rock and a Hard Place: Insurgent Fratricide, Ethnic Defection, and the Rise of Pro-state Paramilitaries.”Journal of Conflict Resolution56 (1): 16–40.
93.
UrdalHenrik. 2008. “Population, Resources, and Political Violence: A Subnational Study of India, 1956-2002.”Journal of Conflict Resolution52 (4): 590–617.
94.
VarshneyAshutosh. 2001. “Ethnic Conflict and Civil Society: India and Beyond.”World Politics53 (3): 362–98.
95.
VreelandJames Raymond. 2008. “The Effect of Political Regime on Civil War: Unpacking Anocracy.”Journal of Conflict Resolution52 (3): 401–25.
96.
WeberMax. 1964. Theory of Social and Economic Organization. New York: Free Press.
97.
WeidmannNils B.2009. “Geography as Motivation and Opportunity: Group Concentration and Ethnic Conflict.”Journal of Conflict Resolution53 (4):526–43.
98.
WilkinsonSteven. 2004. Votes and Violence: Electoral Competition and Ethnic Riots in India. Cambridge, MA: Cambridge University Press.
99.
WimmerAndreasCedermanLars-ErikMinBrian. 2009. “Ethnic Politics and Armed Conflict: A Configurational Analysis of a New Global Data Set.”American Sociological Review74 (2):316–37.
100.
WoodSimon N.2001. “Mgcv: GAMs and Generalized Ridge Regression for R.”R News1:20–25.
101.
WoodSimon N.2006. Generalized Additive Models: An Introduction with R. Boca Raton, FL: Chapman and Hall.
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