The evolutionary interplay of intergroup conflict and altruism in humans: a review of parochial altruism theory and prospects for its extension

The genetical evolution of social behaviour. I

Hamilton, W. D. (1964) · Journal of Theoretical Biology · doi:10.1016/0022-5193(64)90038-4 · Cited by 15,725 · see citing works

The descent of man and selection in relation to sex

チャールス, ダ., & 茂穂, 田. (1907) · Tokyo Jinrui Gakkai zasshi · doi:10.1537/ase1887.22.495 · Cited by 10,909 · see citing works

Science

(2023) · doi:10.1126/science · Cited by 6,063 · see citing works

The descent of man, and selection in relation to sex

Darwin, C. R. (1872) · D. Appleton and company eBooks · doi:10.5962/bhl.title.2112 · Cited by 2,440 · see citing works

Social semantics: altruism, cooperation, mutualism, strong reciprocity and group selection.

WEST, S. A., GRIFFIN, A. S., & GARDNER, A. (2007) · Journal of Evolutionary Biology · doi:10.1111/j.1420-9101.2006.01258.x · Cited by 1,889 · see citing works

Proceedings of the Royal Society B: Biological Sciences

(2013) · Proceedings of the Royal Society B Biological Sciences · doi:10.1098/rspb · Cited by 1,593 · see citing works

The Coevolution of Parochial Altruism and War

Choi, J.-K., & Bowles, S. (2007) · Science · doi:10.1126/science.1144237 · Cited by 1,227 · see citing works

Life Histories, Blood Revenge, and Warfare in a Tribal Population

Chagnon, N. A. (1988) · Science · doi:10.1126/science.239.4843.985 · Cited by 1,159 · see citing works

Evolutionary Explanations for Cooperation

West, S. A., Griffin, A. S., & Gardner, A. (2007) · Current Biology · doi:10.1016/j.cub.2007.06.004 · Cited by 1,010 · see citing works

War before civilization

Keeley, L. H. (1996) · Cited by 971 · see citing works

Parochial altruism in humans

Bernhard, H., Fischbacher, U., & Fehr, E. (2006) · Nature · doi:10.1038/nature04981 · Cited by 919 · see citing works

Did Warfare Among Ancestral Hunter-Gatherers Affect the Evolution of Human Social Behaviors?

Bowles, S. (2009) · Science · doi:10.1126/science.1168112 · Cited by 773 · see citing works

Group Competition, Reproductive Leveling, and the Evolution of Human Altruism

Bowles, S. (2006) · Science · doi:10.1126/science.1134829 · Cited by 604 · see citing works

War before Civilization: The Myth of the Peaceful Savage

Cohen, E. A., & Keeley, L. H. (1996) · Foreign Affairs · doi:10.2307/20047849 · Cited by 548 · see citing works

Gender Differences in Cooperation and Competition

van Vugt, M., David De Cremer, A., & Janssen, D. P. (2007) · Psychological Science · doi:10.1111/j.1467-9280.2007.01842.x · Cited by 547 · see citing works

The Group as the Container of Generalized Reciprocity

Yamagishi, T., & Kiyonari, T. (2000) · Social Psychology Quarterly · doi:10.2307/2695887 · Cited by 528 · see citing works

Intergroup Aggression in Chimpanzees and Humans [and Comments and Replies]

Manson, J. H., Wrangham, R. W., Boone, J. L., Chapais, B., Dunbar, R., Ember, C. R., Irons, W., Marchant, L. F., McGrew, W. C., Nishida, T., et al. (1991) · Current Anthropology · doi:10.1086/203974 · Cited by 486 · see citing works

Evolution and the psychology of intergroup conflict: the male warrior hypothesis

McDonald, M. M., Navarrete, C. D., & van Vugt, M. (2012) · Philosophical Transactions of the Royal Society B Biological Sciences · doi:10.1098/rstb.2011.0301 · Cited by 440 · see citing works

Why do men seek status? Fitness payoffs to dominance and prestige

von Rueden, C. V., Gurven, M., & Kaplan, H. (2011) · Proceedings of the Royal Society of London. Biological Sciences · doi:10.1098/rspb.2010.2145 · Cited by 369 · see citing works

Intergroup conflict: individual, group, and collective interests

Bornstein, G. (2003) · Personality and Social Psychology Review · doi:10.1207/s15327957pspr0702_129-145 · Cited by 365 · see citing works

Groups in Mind: The Coalitional Roots of War and Morality

Tooby, J., & Cosmides, L. (2010) · Human Morality and Sociality · doi:10.1007/978-1-137-05001-4_8 · Cited by 363 · see citing works

“In-Group Love” and “Out-Group Hate” as Motives for Individual Participation in Intergroup Conflict: A New Game Paradigm

Halevy, N., Bornstein, G., & Sagiv, L. (2008) · Psychological Science · doi:10.1111/j.1467-9280.2008.02100.x · Cited by 355 · see citing works

Sex differences in cooperation: A meta-analytic review of social dilemmas.

Balliet, D., Li, N. P., Macfarlan, S. J., & Van Vugt, M. (2011) · Psychological Bulletin · doi:10.1037/a0025354 · Cited by 349 · see citing works

Intergroup Aggression in Chimpanzees and War in Nomadic Hunter-Gatherers

Wrangham, R. W., & Glowacki, L. (2012) · Human Nature · doi:10.1007/s12110-012-9132-1 · Cited by 343 · see citing works

Myths about Hunter-Gatherers

Ember, C. R. (1978) · Ethnology · doi:10.2307/3773193 · Cited by 309 · see citing works

Comparative rates of violence in chimpanzees and humans

Wrangham, R. W., Wilson, M. L., & Muller, M. N. (2006) · Primates · doi:10.1007/s10329-005-0140-1 · Cited by 309 · see citing works

Resource Unpredictability, Mistrust, and War

Ember, C. R., & Ember, M. (1992) · Journal of Conflict Resolution · doi:10.1177/0022002792036002002 · Cited by 308 · see citing works

Group selection and kin selection: Two concepts but one process

Lehmann, L., Keller, L., West, S. A., & Roze, D. (2007) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0700662104 · Cited by 300 · see citing works

Lethal Aggression in Mobile Forager Bands and Implications for the Origins of War

Fry, D. P., & Söderberg, P. (2013) · Science · doi:10.1126/science.1235675 · Cited by 291 · see citing works

Spite and the scale of competition

Gardner, A., & West, S. A. (2004) · Journal of Evolutionary Biology · doi:10.1111/j.1420-9101.2004.00775.x · Cited by 235 · see citing works

The evolution of lethal intergroup violence

Kelly, R. C. (2005) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0505955102 · Cited by 229 · see citing works

A cross-cultural study

BLUM, R. H. (1969) · Cited by 228 · see citing works

Evolution of in-group favoritism

Fu, F., Tarnita, C. E., Christakis, N. A., Wang, L., Rand, D. G., & Nowak, M. A. (2012) · Scientific Reports · doi:10.1038/srep00460 · Cited by 221 · see citing works

The Ontogeny of the Motivation That Underlies In-Group Bias

Buttelmann, D., & Böhm, R. (2014) · Psychology Science · doi:10.1177/0956797613516802 · Cited by 200 · see citing works

Factors affecting individual participation in group-level aggression among non-human primates

Beehner, J. C., & Kitchen, D. M. (2007) · Behaviour · doi:10.1163/156853907782512074 · Cited by 196 · see citing works

Life histories, blood revenge, and reproductive success among the Waorani of Ecuador

Beckerman, S. J., Erickson, P. I., Yost, J. A., Regalado, J., Jaramillo, L., Sparks, C. S., Iromenga, M., & Long, K. T. (2009) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0901431106 · Cited by 195 · see citing works

False friends are worse than bitter enemies

Shinada, M., Yamagishi, T., & Ohmura, Y. (2004) · Evolution and Human Behavior · doi:10.1016/j.evolhumbehav.2004.08.001 · Cited by 194 · see citing works

“In‐Group Love” and “Out‐Group Hate” in Repeated Interaction Between Groups

Halevy, N., Weisel, O., & Bornstein, G. (2011) · Journal of Behavioral Decision Making · doi:10.1002/bdm.726 · Cited by 182 · see citing works

The Role of Rewards in Motivating Participation in Simple Warfare

Glowacki, L., & Wrangham, R. W. (2013) · Human Nature · doi:10.1007/s12110-013-9178-8 · Cited by 175 · see citing works

Altruism toward in-group members as a reputation mechanism

Mifune, N., Hashimoto, H., & Yamagishi, T. (2009) · Evolution and Human Behavior · doi:10.1016/j.evolhumbehav.2009.09.004 · Cited by 172 · see citing works

A solution to the collective action problem in between-group conflict with within-group inequality

Sergey Gavrilets, B., & Fortunato, L. (2014) · Nature Communications · doi:10.1038/ncomms4526 · Cited by 168 · see citing works

Individualist and Multi-level Perspectives on Selection in Structured Populations

Kerr, B., & Godfrey‐Smith, P. (2002) · Biology & Philosophy · doi:10.1023/a:1020504900646 · Cited by 167 · see citing works

Conflict, sticks and carrots: war increases prosocial punishments and rewards

Gneezy, A., & Fessler, D. M. T. (2011) · Proceedings of the Royal Society B Biological Sciences · doi:10.1098/rspb.2011.0805 · Cited by 158 · see citing works

Evolution of direct and indirect reciprocity

Roberts, G. (2007) · Proceedings of the Royal Society B Biological Sciences · doi:10.1098/rspb.2007.1134 · Cited by 154 · see citing works

Chimpanzees and the mathematics of battle

Wilson, M. L., Britton, N. F., & Franks, N. R. (2002) · Proceedings of the Royal Society B Biological Sciences · doi:10.1098/rspb.2001.1926 · Cited by 154 · see citing works

The group selection controversy

Leigh, E. G. (2009) · Journal of Evolutionary Biology · doi:10.1111/j.1420-9101.2009.01876.x · Cited by 148 · see citing works

Meat sharing for coalitional support

Patton, J. Q. (2005) · Evolution and Human Behavior · doi:10.1016/j.evolhumbehav.2004.08.008 · Cited by 135 · see citing works

Social exchange and solidarity: in-group love or out-group hate?

Yamagishi, T., & Mifune, N. (2009) · Evolution and Human Behavior · doi:10.1016/j.evolhumbehav.2009.02.004 · Cited by 122 · see citing works

Evolution of parochial altruism by multilevel selection

García, J., & van den Bergh, J. C. J. M. (2011) · Evolution and Human Behavior · doi:10.1016/j.evolhumbehav.2010.07.007 · Cited by 120 · see citing works

Individual contributions to territory defence in a cooperative breeder: weighing up the benefits and costs

Marés, R., Young, A. J., & Clutton-Brock, T. H. (2012) · Proceedings of the Royal Society B Biological Sciences · doi:10.1098/rspb.2012.1071 · Cited by 117 · see citing works

Cooperating to compete: altruism, sexual selection and causes of male reproductive cooperation

Díaz‐Muñoz, S. L., DuVal, E. H., Krakauer, A. H., & Lacey, E. A. (2013) · Animal Behaviour · doi:10.1016/j.anbehav.2013.11.008 · Cited by 115 · see citing works

Cooperation for direct fitness benefits

Leimar, O., & Hammerstein, P. (2010) · Philosophical Transactions of the Royal Society B Biological Sciences · doi:10.1098/rstb.2010.0116 · Cited by 112 · see citing works

Cheating monkeys undermine group strength in enemy territory

Crofoot, M. C., & Gilby, I. C. (2011) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1115937109 · Cited by 100 · see citing works

The collective action problem in primate territory economics

Willems, E. P., Hellriegel, B., & van Schaik, C. P. (2013) · Proceedings of the Royal Society B Biological Sciences · doi:10.1098/rspb.2013.0081 · Cited by 99 · see citing works

Ancestral Hierarchy and Conflict

Boehm, C. (2012) · Science · doi:10.1126/science.1219961 · Cited by 98 · see citing works

Duration and outcome of intergroup conflict influences intragroup affiliative behaviour

Radford, A. N. (2008) · Proceedings of the Royal Society B Biological Sciences · doi:10.1098/rspb.2008.0787 · Cited by 97 · see citing works

War and the evolution of belligerence and bravery

Lehmann, L., & Feldman, M. W. (2008) · Proceedings of the Royal Society B Biological Sciences · doi:10.1098/rspb.2008.0842 · Cited by 97 · see citing works

Life Without War

Fry, D. P. (2012) · Science · doi:10.1126/science.1217987 · Cited by 95 · see citing works

Costly punishment prevails in intergroup conflict

Sääksvuori, L., Mappes, T., & Puurtinen, M. (2011) · Proceedings of the Royal Society B Biological Sciences · doi:10.1098/rspb.2011.0252 · Cited by 92 · see citing works

Group selection and inclusive fitness are not equivalent; the Price equation vs. models and statistics

van Veelen, M., García, J. A., Sabelis, M. W., & Egas, M. (2011) · Journal of Theoretical Biology · doi:10.1016/j.jtbi.2011.07.025 · Cited by 86 · see citing works

Numerical assessment affects aggression and competitive ability: a team-fighting strategy for the ant Formica xerophila

Tanner, C. J. (2006) · Proceedings of the Royal Society B Biological Sciences · doi:10.1098/rspb.2006.3626 · Cited by 86 · see citing works

Body counts in lowland South American violence

Walker, R. S., & Bailey, D. H. (2013) · Evolution and Human Behavior · doi:10.1016/j.evolhumbehav.2012.08.003 · Cited by 77 · see citing works

Raiding for Women in the Pre‐Hispanic Northern Pueblo Southwest?

Turner, T. A. K. A. K. K. (2006) · Current Anthropology · doi:10.1086/508697 · Cited by 71 · see citing works

Fight tactics in wood ants: individuals in smaller groups fight harder but die faster

Batchelor, T. P., & Briffa, M. (2011) · Proceedings of the Royal Society B Biological Sciences · doi:10.1098/rspb.2011.0062 · Cited by 70 · see citing works

Genetic differentiation and the evolution of cooperation in chimpanzees and humans.

Langergraber, K., Schubert, G., Rowney, C., Wrangham, R., Zommers, Z., & Vigilant, L. (2011) · Proceedings of the Royal Society B Biological Sciences · doi:10.1098/rspb.2010.2592 · Cited by 67 · see citing works

Collective action in culturally similar and dissimilar groups: an experiment on parochialism, conditional cooperation, and their linkages ☆,☆☆

Koopmans, R., & Rebers, S. (2009) · Evolution and Human Behavior · doi:10.1016/j.evolhumbehav.2009.01.003 · Cited by 67 · see citing works

Communication in intergroup conflicts

Leibbrandt, A., & Sääksvuori, L. (2012) · European Economic Review · doi:10.1016/j.euroecorev.2012.05.003 · Cited by 66 · see citing works

Preparing for battle? Potential intergroup conflict promotes current intragroup affiliation

Radford, A. N. (2010) · Biology Letters · doi:10.1098/rsbl.2010.0507 · Cited by 64 · see citing works

Why Can't We All Just Get Along? Evolutionary Perspectives on Violence, Homicide, and War

Liddle, J. R., Shackelford, T. K., & Weekes‐Shackelford, V. A. (2012) · Review of General Psychology · doi:10.1037/a0026610 · Cited by 63 · see citing works

Inclusive fitness: 50 years on

Gardner, A., & West, S. A. (2014) · Philosophical Transactions of the Royal Society B Biological Sciences · doi:10.1098/rstb.2013.0356 · Cited by 62 · see citing works

Biology Letters

(2013) · Biology Letters · doi:10.1098/rsbl · Cited by 55 · see citing works

Why There Are So Few Women Warriors

Adams, D. B. (1983) · Cross-Cultural Research · doi:10.1177/106939718301800302 · Cited by 53 · see citing works

The Two Sides of Warfare

Rusch, H. (2014) · Human Nature · doi:10.1007/s12110-014-9199-y · Cited by 53 · see citing works

Evolutionarily stable in-group favoritism and out-group spite in intergroup conflict

Konrad, K. A., & Morath, F. (2012) · Journal of Theoretical Biology · doi:10.1016/j.jtbi.2012.04.013 · Cited by 52 · see citing works

Asymmetries in Altruistic Behavior during Violent Intergroup Conflict

Rusch, H. (2013) · Evolutionary Psychology · doi:10.1177/147470491301100504 · Cited by 50 · see citing works

(Evolutionary) Theories of warfare in preindustrial (foraging) societies.

van der Dennen, J. M. G. (2002) · PubMed · Cited by 43 · see citing works

Cooperation during cultural group formation promotes trust towards members of out-groups

Pan, X. S., & Houser, D. E. (2013) · Proceedings of the Royal Society B Biological Sciences · doi:10.1098/rspb.2013.0606 · Cited by 41 · see citing works

Male traits associated with attractiveness in Conambo, Ecuador

Escasa-Dorne, M. J., Gray, P. B., & Patton, J. Q. (2009) · Evolution and Human Behavior · doi:10.1016/j.evolhumbehav.2009.09.008 · Cited by 40 · see citing works

Cooperating for direct fitness benefits

Hammerstein, P., & Leimar, O. (2006) · Journal of Evolutionary Biology · doi:10.1111/j.1420-9101.2006.01160.x · Cited by 27 · see citing works

Competition for Trophies Triggers Male Generosity

Pan, X. S., & Houser, D. E. (2011) · PLoS ONE · doi:10.1371/journal.pone.0018050 · Cited by 24 · see citing works

Evolutionary dynamics of n -player games played by relatives

Ohtsuki, H. (2014) · Philosophical Transactions of the Royal Society B Biological Sciences · doi:10.1098/rstb.2013.0359 · Cited by 24 · see citing works

Cooperating to Compete:

(2015) · Stanford University Press eBooks · doi:10.2307/j.ctvqsf18w.6 · Cited by 24 · see citing works

Why Can't We All Just Get Along?

Daoud, E. G. (2014) · Respiratory Care · doi:10.4187/respcare.03430 · Cited by 20 · see citing works

50 Years on

Baker, M. A. (1983) · The Musical Times · doi:10.2307/962381 · Cited by 15 · see citing works

Altruistic Punishment and Between-Group Competition

Rebers, S., & Koopmans, R. (2012) · Human Nature · doi:10.1007/s12110-012-9136-x · Cited by 14 · see citing works

Groups in Mind

Hilbert, D. R., & Huggett, N. (2006) · Philosophy of Science · doi:10.1086/518635 · Cited by 5 · see citing works

A threshold for biological altruism in public goods games played in groups including kinPreprint

Rusch, H. (2024) · RePEc: Research Papers in Economics · doi:10.17192/es2024.0331 · Cited by 3 · see citing works

Untitled work

Barbero (2014) · doi:10.1016/j · Cited by 1 · see citing works

Preferences and beliefs in ingroup favoritism

Everett, J. A. C., Faber, N. S., & Crockett, M. J. (2015) · Frontiers in Behavioral Neuroscience · doi:10.3389/fnbeh.2015.00015 · Cited by 286 · see citing works

The psychology of intergroup conflict: A review of theories and measures

BOHM, R. M., Rusch, H., & Baron, J. A. (2018) · Journal of Economic Behavior & Organization · doi:10.1016/j.jebo.2018.01.020 · Cited by 227 · see citing works

Oxytocin reactivity during intergroup conflict in wild chimpanzees

Samuni, L., Preis, A., Mundry, R., Deschner, T., Crockford, C., & Wittig, R. M. (2017) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1616812114 · Cited by 207 · see citing works

Evolutionary Game Theory: A Renaissance

Newton, J. (2018) · Games · doi:10.3390/g9020031 · Cited by 208 · see citing works

The evolutionary anthropology of war

Glowacki, L., Wilson, M. L., & Wrangham, R. W. (2017) · Journal of Economic Behavior & Organization · doi:10.1016/j.jebo.2017.09.014 · Cited by 189 · see citing works

Neuroimaging the consciousness of self: Review, and conceptual-methodological framework

Frewen, P., Schroeter, M. L., Riva, G., Cipresso, P., Fairfield, B., Padulo, C., Kemp, A. H., Palaniyappan, L. K., Owolabi, M. O., Kusi‐Mensah, K., et al. (2020) · Neuroscience & Biobehavioral Reviews · doi:10.1016/j.neubiorev.2020.01.023 · Cited by 177 · see citing works

Coalitions in theory and reality: a review of pertinent variables and processes

Bissonnette, A., Perry, S., Barrett, L., Mitani, J. C., Flinn, M. V., Sergey Gavrilets, B., & de Waal, F. Β. Μ. (2014) · Behaviour · doi:10.1163/1568539x-00003241 · Cited by 146 · see citing works

Dear enemies or nasty neighbors? Causes and consequences of variation in the responses of group-living species to territorial intrusions

Christensen, C., & Radford, A. N. (2018) · Behavioral Ecology · doi:10.1093/beheco/ary010 · Cited by 136 · see citing works

National parochialism is ubiquitous across 42 nations around the world

Romano, A., Sutter, M., Liu, J. H.-F., Yamagishi, T., & Balliet, D. P. (2021) · Nature Communications · doi:10.1038/s41467-021-24787-1 · Cited by 128 · see citing works

BEHAVIOR IN GROUP CONTESTS: A REVIEW OF EXPERIMENTAL RESEARCH

Sheremeta, R. M. (2015) · Journal of Economic Surveys · doi:10.1111/joes.12208 · Cited by 113 · see citing works

Revisiting the form and function of conflict: Neurobiological, psychological, and cultural mechanisms for attack and defense within and between groups

Dreu, C. K. W. D., & Gross, J. (2018) · Behavioral and Brain Sciences · doi:10.1017/s0140525x18002170 · Cited by 113 · see citing works

The psychology of deterrence explains why group membership matters for third-party punishment

Delton, A. W., & Krasnow, M. M. (2017) · Evolution and Human Behavior · doi:10.1016/j.evolhumbehav.2017.07.003 · Cited by 97 · see citing works

Testosterone is associated with cooperation during intergroup competition by enhancing parochial altruism

Reimers, L., & Diekhof, E. K. (2015) · Frontiers in Neuroscience · doi:10.3389/fnins.2015.00183 · Cited by 86 · see citing works

Oxytocin promotes coordinated out-group attack during intergroup conflict in humans

Zhang, H., Gross, J., De Dreu, C., & Ma, Y. (2019) · eLife · doi:10.7554/elife.40698 · Cited by 87 · see citing works

Formation of raiding parties for intergroup violence is mediated by social network structure

Glowacki, L., Isakov, A., Wrangham, R. W., McDermott, R., Fowler, J. H., & Christakis, N. A. (2016) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1610961113 · Cited by 83 · see citing works

Applying cultural evolution to sustainability challenges: an introduction to the special issue

Brooks, J. S., Waring, T. M., Mulder, M. B., & Richerson, P. J. (2017) · Sustainability Science · doi:10.1007/s11625-017-0516-3 · Cited by 82 · see citing works

Causes and consequences of intergroup conflict in cooperative banded mongooses

Thompson, F. J., Marshall, H. H., Vitikainen, E., & Cant, M. A. (2017) · Animal Behaviour · doi:10.1016/j.anbehav.2017.01.017 · Cited by 79 · see citing works

The logic of animal intergroup conflict: A review

Rusch, H., & Sergey Gavrilets, B. (2017) · Journal of Economic Behavior & Organization · doi:10.1016/j.jebo.2017.05.004 · Cited by 75 · see citing works

Costs, needs, and integration efforts shape helping behavior toward refugees

BOHM, R. M., Theelen, M. M. P., Rusch, H., & Lange, P. A. M. V. (2018) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1805601115 · Cited by 67 · see citing works

Historical and experimental evidence of sexual selection for war heroism

Rusch, H., Leunissen, J. M., & van Vugt, M. (2015) · Evolution and Human Behavior · doi:10.1016/j.evolhumbehav.2015.02.005 · Cited by 68 · see citing works

Inter-group cooperation in humans and other animals

Robinson, E. J. H., & Barker, J. L. (2017) · Biology Letters · doi:10.1098/rsbl.2016.0793 · Cited by 66 · see citing works

A hermeneutic literature review to conceptualise altruism as a value in nursing

van der Wath, A., & van Wyk, N. (2019) · Scandinavian Journal of Caring Sciences · doi:10.1111/scs.12771 · Cited by 64 · see citing works

Networks of reliable reputations and cooperation: a review

Takács, K., Gross, J., Testori, M., Letina, S., Kenny, A. R., Power, E. A., & Wittek, R. P. M. (2021) · Philosophical Transactions of the Royal Society B · doi:10.1098/rstb.2020.0297 · Cited by 61 · see citing works

A neurobiological association of revenge propensity during intergroup conflict

Han, X., Gelfand, M. J., Wu, B., Zhang, T., Li, W., Gao, T., Pang, C., Wu, T., Zhou, Y., Zhou, S., et al. (2020) · eLife · doi:10.7554/elife.52014 · Cited by 58 · see citing works

Parochial Versus Universal Cooperation: Introducing a Novel Economic Game of Within- and Between-Group Interaction

Aaldering, H., & BOHM, R. M. (2019) · Social Psychological and Personality Science · doi:10.1177/1948550619841627 · Cited by 58 · see citing works

How the mind sees coalitional and group conflict: the evolutionary invariances of n-person conflict dynamics

Pietraszewski, D. (2016) · Evolution and Human Behavior · doi:10.1016/j.evolhumbehav.2016.04.006 · Cited by 55 · see citing works

Who Does (Not) Participate in Intergroup Conflict?

Thielmann, I., & BOHM, R. M. (2016) · Social Psychological and Personality Science · doi:10.1177/1948550616660160 · Cited by 50 · see citing works

Comparison of male conflict behavior in chimpanzees(Pan troglodytes)and bonobos(Pan paniscus), with specific regard to coalition and post‐conflict behavior

Surbeck, M., Boesch, C., Girard‐Buttoz, C., Crockford, C., Hohmann, G., & Wittig, R. M. (2017) · American Journal of Primatology · doi:10.1002/ajp.22641 · Cited by 47 · see citing works

Collective ritual and social support networks in rural South India

Power, E. (2018) · Proceedings of the Royal Society of London. Biological Sciences · doi:10.1098/rspb.2018.0023 · Cited by 45 · see citing works

Spoils division rules shape aggression between natural groups

Doğan, G., Glowacki, L., & Rusch, H. (2018) · Nature Human Behaviour · doi:10.1038/s41562-018-0338-z · Cited by 43 · see citing works

The Male Warrior Hypothesis: Testosterone-related Cooperation and Aggression in the Context of Intergroup Conflict

Muñoz‐Reyes, J. A., Polo, P., Valenzuela, N. T., Pávez, P., Ramírez-Herrera, O., Figueroa, O., Rodríguez‐Sickert, C., Díaz, D., & Pita, M. (2020) · Scientific Reports · doi:10.1038/s41598-019-57259-0 · Cited by 41 · see citing works

Intergroup conflict: origins, dynamics and consequences across taxa

Dreu, C. K. W. D., & Triki, Z. (2022) · Philosophical Transactions of the Royal Society B Biological Sciences · doi:10.1098/rstb.2021.0134 · Cited by 39 · see citing works

Toward a computational theory of social groups: A finite set of cognitive primitives for representing any and all social groups in the context of conflict

Pietraszewski, D. (2022) · Behavioral and Brain Sciences · doi:10.1017/s0140525x21000583 · Cited by 45 · see citing works

The Evolutionary Psychology of War: Offense and Defense in the Adapted Mind

Lopez, A. C. (2017) · Evolutionary Psychology · doi:10.1177/1474704917742720 · Cited by 37 · see citing works

The development of ingroup favoritism in repeated social dilemmas

Dorrough, A. R., Glöckner, A., Hellmann, M., & Ebert, I. D. (2015) · Frontiers in Psychology · doi:10.3389/fpsyg.2015.00476 · Cited by 36 · see citing works

Shared intentions: The evolution of collaboration

Newton, J. (2017) · Games and Economic Behavior · doi:10.1016/j.geb.2017.06.001 · Cited by 34 · see citing works

Rehabilitation and social behavior: Experiments in prison

Balafoutas, L., García-Gallego, A., Georgantzis, N., Jaber-Lopez, T., & Mitrokostas, E. (2020) · Games and Economic Behavior · doi:10.1016/j.geb.2019.10.009 · Cited by 36 · see citing works

Super-additive cooperation

Efferson, C., Bernhard, H., Fischbacher, U., & Fehr, E. (2024) · Nature · doi:10.1038/s41586-024-07077-w · Cited by 32 · see citing works

Threat and parochialism in intergroup relations: lab-in-the-field evidence from rural Georgia

Schaub, M. (2017) · Proceedings of the Royal Society B Biological Sciences · doi:10.1098/rspb.2017.1560 · Cited by 34 · see citing works

Indirect Reciprocity and the Evolution of Prejudicial Groups

Whitaker, R. M., Colombo, G. B., & Rand, D. G. (2018) · Scientific Reports · doi:10.1038/s41598-018-31363-z · Cited by 33 · see citing works

Warfare in an evolutionary perspective

Majolo, B. (2019) · Evolutionary Anthropology Issues News and Reviews · doi:10.1002/evan.21806 · Cited by 33 · see citing works

Key individuals catalyse intergroup violence

Glowacki, L., & McDermott, R. (2022) · Philosophical Transactions of the Royal Society B Biological Sciences · doi:10.1098/rstb.2021.0141 · Cited by 32 · see citing works

Effective Altruism and the Human Mind

Schubert, S., & Caviola, L. (2024) · Oxford University Press eBooks · doi:10.1093/oso/9780197757376.001.0001 · Cited by 31 · see citing works

“Do the right thing” for whom? An experiment on ingroup favouritism, group assorting and moral suasion

Bilancini, E., Boncinelli, L., Capraro, V., Celadin, T., & Paolo, R. D. (2020) · Judgment and Decision Making · doi:10.1017/s1930297500007336 · Cited by 33 · see citing works

Parochial cooperation in wild chimpanzees: a model to explain the evolution of parochial altruism

Lemoine, S. R. T., Samuni, L., Crockford, C., & Wittig, R. M. (2022) · Philosophical Transactions of the Royal Society B Biological Sciences · doi:10.1098/rstb.2021.0149 · Cited by 29 · see citing works

Emergence of Shared Intentionality Is Coupled to the Advance of Cumulative Culture

Angus, S. D., & Newton, J. (2015) · PLoS Computational Biology · doi:10.1371/journal.pcbi.1004587 · Cited by 29 · see citing works

Do gray wolves (Canis lupus) support pack mates during aggressive inter-pack interactions?

Cassidy, K. A., & McIntyre, R. T. (2016) · Animal Cognition · doi:10.1007/s10071-016-0994-1 · Cited by 28 · see citing works

Variation between species, populations, groups and individuals in the fitness consequences of out-group conflict

Morris‐Drake, A., Kennedy, P., Gonçalves, I. B., & Radford, A. N. (2022) · Philosophical Transactions of the Royal Society B Biological Sciences · doi:10.1098/rstb.2021.0148 · Cited by 26 · see citing works

The evolution of altruism through war is highly sensitive to population structure and to civilian and fighter mortality

Dyble, M. (2021) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.2011142118 · Cited by 24 · see citing works

Conflict and parochialism among combatants and civilians: Evidence from Ukraine

Mironova, V., & Whitt, S. (2021) · Journal of Economic Psychology · doi:10.1016/j.joep.2021.102425 · Cited by 20 · see citing works

On the Stability of Social Preferences in Inter-Group Conflict: A Lab-in-the-Field Panel Study

Böhm, R., Fleiß, J., & Rybnicek, R. (2021) · Journal of Conflict Resolution · doi:10.1177/0022002721994080 · Cited by 16 · see citing works

Evolutionary Biology in Economics: A Review

Collins, J., Baer, B., & Weber, E. J. (2016) · Economic Record · doi:10.1111/1475-4932.12260 · Cited by 42 · see citing works

Dying the right-way? Interest in and perceived persuasiveness of parochial extremist propaganda increases after mortality salience

Frischlich, L., Rieger, D., Hein, M., & Bente, G. (2015) · Frontiers in Psychology · doi:10.3389/fpsyg.2015.01222 · Cited by 20 · see citing works

COMMON‐ENEMY EFFECTS: MULTIDISCIPLINARY ANTECEDENTS AND ECONOMIC PERSPECTIVES

Jaegher, K. D. (2020) · Journal of Economic Surveys · doi:10.1111/joes.12394 · Cited by 20 · see citing works

Fitness consequences of outgroup conflict

Gonçalves, I. B., Morris‐Drake, A., Kennedy, P., & Radford, A. N. (2022) · eLife · doi:10.7554/elife.74550 · Cited by 19 · see citing works

Economic games and social neuroscience methods can help elucidate the psychology of parochial altruism

Everett, J. A. C., Faber, N. S., Crockett, M. J., & Dreu, C. K. W. D. (2015) · Frontiers in Psychology · doi:10.3389/fpsyg.2015.00861 · Cited by 19 · see citing works

Associations between cooperation, reactive aggression and social impairments among boys with autism spectrum disorder

Kaartinen, M., Puura, K., Pispa, P., Helminen, M., Salmelin, R. K., Pelkonen, E., Juujärvi, P., Kessler, E. B., & Skuse, D. (2017) · Autism · doi:10.1177/1362361317726417 · Cited by 19 · see citing works

What makes people go to war? Defensive intentions motivate retaliatory and preemptive intergroup aggression

BOHM, R. M., Rusch, H., & Gürerk, Ö. (2015) · Evolution and Human Behavior · doi:10.1016/j.evolhumbehav.2015.06.005 · Cited by 111 · see citing works

Spillovers from coordination to cooperation: Evidence for the interdependence hypothesis?

Rusch, H., & Lütge, C. (2016) · Evolutionary Behavioral Sciences · doi:10.1037/ebs0000066 · Cited by 18 · see citing works

No strong evidence for universal gender differences in the development of cooperative behaviour across societies

House, B. R., Silk, J. B., & McAuliffe, K. (2022) · Philosophical Transactions of the Royal Society B Biological Sciences · doi:10.1098/rstb.2021.0439 · Cited by 18 · see citing works

Immigration and Support for Redistribution: Lessons from Europe

Cavaillé, C., & der Straeten, K. V. (2023) · Journal of Economic Literature · doi:10.1257/jel.20221708 · Cited by 17 · see citing works

The demography of human warfare can drive sex differences in altruism

Micheletti, A. J. C., Ruxton, G. D., & Gardner, A. (2020) · Evolutionary Human Sciences · doi:10.1017/ehs.2020.5 · Cited by 15 · see citing works

The impact of resource valence on children’s other-regarding preferences.

BOHM, R. M., & Buttelmann, D. (2017) · Developmental Psychology · doi:10.1037/dev0000365 · Cited by 16 · see citing works

Evolution of global cooperation and ethnocentrism in group-structured populations

Gao, S., Wu, T., & Wang, L. (2018) · Physics Letters A · doi:10.1016/j.physleta.2018.05.020 · Cited by 15 · see citing works

Violence and warfare in prehistoric Japan

Nakagawa, T., Nakao, H., Tamura, K., Arimatsu, Y., Matsumoto, N., & Matsugi, T. (2017) · Letters on Evolutionary Behavioral Science · doi:10.5178/lebs.2017.55 · Cited by 14 · see citing works

Cognitive and neural bases of decision-making causing civilian casualties during intergroup conflict

Han, X., Zhou, S., Fahoum, N., Wu, T., Gao, T., Shamay‐Tsoory, S., Gelfand, M. J., Wu, X., & Han, S. (2021) · Nature Human Behaviour · doi:10.1038/s41562-021-01064-1 · Cited by 14 · see citing works

Prosociality as response to slow- and fast-onset climate hazards

Steimanis, I., & Vollan, B. (2022) · Global Sustainability · doi:10.1017/sus.2022.9 · Cited by 11 · see citing works

Dynamics of Intergroup Relationships in Primates: Introduction to the Special Issue

Belle, S. V., Grueter, C. C., & Furuichi, T. (2020) · International Journal of Primatology · doi:10.1007/s10764-020-00159-2 · Cited by 14 · see citing works

Facial and body sexual dimorphism are not interconnected in the Maasai

Butovskaya, M., Rostovtseva, V. V., & Mezentseva, A. A. (2022) · Journal of PHYSIOLOGICAL ANTHROPOLOGY · doi:10.1186/s40101-021-00276-8 · Cited by 13 · see citing works

Parochial reciprocity

Columbus, S., Thielmann, I., Zettler, I., & BOHM, R. M. (2023) · Evolution and Human Behavior · doi:10.1016/j.evolhumbehav.2023.02.001 · Cited by 13 · see citing works

Modelling behaviour in intergroup conflicts: a review of microeconomic approaches

Rusch, H. (2022) · Philosophical Transactions of the Royal Society B Biological Sciences · doi:10.1098/rstb.2021.0135 · Cited by 12 · see citing works

“Refugees” as a Misnomer: The Parochial Politics and Official Discourse of the Visegrad Four

Gruszczak, A. (2021) · Politics and Governance · doi:10.17645/pag.v9i4.4411 · Cited by 13 · see citing works

Intuitive Participation in Aggressive Intergroup Conflict: Evidence of Weak Versus Strong Parochial Altruism

BOHM, R. M. (2016) · Frontiers in Psychology · doi:10.3389/fpsyg.2016.01535 · Cited by 11 · see citing works

“A letter for Dr. Outgroup”: on the effects of an indicator of competence and chances for altruism toward a member of a stigmatized out-group

Hellmann, J. H., Berthold, A., Rees, J. H., & Hellmann, D. F. (2015) · Frontiers in Psychology · doi:10.3389/fpsyg.2015.01422 · Cited by 11 · see citing works

Negative and positive externalities in intergroup conflict: exposure to the opportunity to help the outgroup reduces the inclination to harm it

Weisel, O. (2015) · Frontiers in Psychology · doi:10.3389/fpsyg.2015.01594 · Cited by 11 · see citing works

Multi-Agent Risks from Advanced AI

Hammond, L., Chan, A., Clifton, J., Hoelscher-Obermaier, J., Khan, A., McLean, E., Smith, C., Barfuss, W., Foerster, J., Gavenčiak, T., et al. (2025) · arXiv · doi:10.48550/arxiv.2502.14143 · Cited by 10 · see citing works

From ordinary to extraordinary: A roadmap for studying the psychology of moral exceptionality

Lawn, E. C. R., Smillie, L. D., Pacheco, L. B., & Laham, S. M. (2021) · Current Opinion in Psychology · doi:10.1016/j.copsyc.2021.08.002 · Cited by 12 · see citing works

Religious Devotion and Extrinsic Religiosity Affect In-group Altruism and Out-group Hostility Oppositely in Rural Jamaica

Lynch, R., Palestis, B. G., & Trivers, R. L. (2017) · Evolutionary Psychological Science · doi:10.1007/s40806-017-0103-y · Cited by 10 · see citing works

Personality Correlates of Out-Group Harm

Columbus, S., Thielmann, I., BOHM, R. M., & Zettler, I. (2024) · Social Psychological and Personality Science · doi:10.1177/19485506241254157 · Cited by 9 · see citing works

Janus faced: The co‐evolution of war and peace in the human species

Meijer, H. (2024) · Evolutionary Anthropology Issues News and Reviews · doi:10.1002/evan.22027 · Cited by 11 · see citing works

Ancestral kinship patterns substantially reduce the negative effect of increasing group size on incentives for public goods provision

Rusch, H. (2017) · Journal of Economic Psychology · doi:10.1016/j.joep.2017.12.002 · Cited by 9 · see citing works

Local Reasons to Give Globally: Identity Extension and Global Cooperation

Buchan, N. R., Jeong, S. S., & Ward, A. K. (2017) · Scientific Reports · doi:10.1038/s41598-017-15683-0 · Cited by 9 · see citing works

Conflict and social capital: Evidence from the Russian War against Ukraine

Hoch, G., Pondorfer, A., & Shkola, V. Y. (2025) · Journal of Comparative Economics · doi:10.1016/j.jce.2025.02.002 · Cited by 13 · see citing works

The evolutionary stability of in-group altruism in productive and destructive group contests

Cheikbossian, G. (2021) · Journal of Economic Behavior & Organization · doi:10.1016/j.jebo.2021.05.017 · Cited by 8 · see citing works

Culture and group-functional punishment behaviour

Espín, A., Brañas-Garza, P., Gamella, J., Herrmann, B., & Martín, J. (2022) · Evolutionary Human Sciences · doi:10.1017/ehs.2022.32 · Cited by 8 · see citing works

Oxytocin promotes coordinated out-group attack during intergroup conflict in humansPreprint

Zhang, H., Gross, J., Dreu, C. K. W. D., & Ma, Y. (2018) · bioRxiv (Cold Spring Harbor Laboratory) · doi:10.1101/403790 · Cited by 8 · see citing works

Shaking the tyrant’s bloody robe

Kiper, J., & Sosis, R. H. (2016) · Politics and the Life Sciences · doi:10.1017/pls.2016.7 · Cited by 7 · see citing works

Experimental evidence that chronic outgroup conflict reduces reproductive success in a cooperatively breeding fish

Gonçalves, I. B., & Radford, A. N. (2022) · eLife · doi:10.7554/elife.72567 · Cited by 7 · see citing works

Experimental evidence suggests intergroup relations are, by default, neutral rather than aggressive

Imada, H., & Mifune, N. (2024) · Behavioral and Brain Sciences · doi:10.1017/s0140525x23002728 · Cited by 6 · see citing works

Studies on Documented Historical Cases of Civil and War Heroism: A Mini-Review

Amsterdam, V., & Rusch, H. (2016) · Heroism Science An Interdisciplinary Journal · doi:10.26736/hs.2016.01.04 · Cited by 6 · see citing works

Indirect reciprocity and tradeoff paradigms in the wake of violent intergroup conflict

Skoog, E. (2020) · Evolution and Human Behavior · doi:10.1016/j.evolhumbehav.2020.10.004 · Cited by 6 · see citing works

Collaboration leads to cooperation on sparse networks

Angus, S. D., & Newton, J. (2020) · PLoS Computational Biology · doi:10.1371/journal.pcbi.1007557 · Cited by 6 · see citing works

Editorial: Parochial Altruism: Pitfalls and Prospects

Rusch, H., BOHM, R. M., & Herrmann, B. (2016) · Frontiers in Psychology · doi:10.3389/fpsyg.2016.01004 · Cited by 6 · see citing works

"Do the Right Thing" for Whom? An Experiment on Ingroup Favouritism, Group Assorting and Moral SuasionPreprint

Bilancini, E., Boncinelli, L., Capraro, V., Celadin, T., & Paolo, R. D. (2019) · doi:10.31234/osf.io/s6wmu · Cited by 7 · see citing works

‘Do the Right Thing’ for Whom? An Experiment on Ingroup Favouritism, Group Assortativity and Moral SuasionPreprint

Bilancini, E., Boncinelli, L., Capraro, V., Celadin, T., & Paolo, R. D. (2019) · SSRN Electronic Journal · doi:10.2139/ssrn.3486398 · Cited by 7 · see citing works

Experimentally-Induced Social Threat Increases Paranoid ThinkingPreprint

Saalfeld, V., Ramadan, Z., Bell, V., & Raihani, N. (2018) · doi:10.31234/osf.io/jxkv3 · Cited by 6 · see citing works

Emergence of parochial altruism in well-mixed populations of multiple groups

Gao, S., Wu, T., Nie, S., & Wang, L. (2015) · Physics Letters A · doi:10.1016/j.physleta.2015.07.032 · Cited by 5 · see citing works

Why Atheism is more Natural than Religion

Szocik, K., & Walden, P. L. (2015) · Jagiellonian University Repository (Jagiellonian University) · doi:10.4467/20844077sr.15.023.4762 · Cited by 5 · see citing works

Fickle Prosociality: How Violence against LGBTQ+ People Motivates Prosocial Mass Attitudes toward LGBTQ+ Group Members

Roman, M., & Thompson, J. (2024) · American Political Science Review · doi:10.1017/s0003055424000947 · Cited by 5 · see citing works

Human agricultural economy is, and likely always was, largely based on kinship – Why?

Rusch, H., & Voland, E. (2016) · Behavioral and Brain Sciences · doi:10.1017/s0140525x15001168 · Cited by 5 · see citing works

Parochial Altruism: Pitfalls and Prospects

Bohm, R., Rusch, H., & Herrmann, B. (2016) · Directory of Open access Books (OAPEN Foundation)

Intergroup conflicts in human evolution: A critical review of the parochial altruism model（人間進化における集団間紛争 ―偏狭な利他性モデルを中心に―）

Nakao, H., Tamura, K., & Nakagawa, T. (2023) · PhilPapers (PhilPapers Foundation)

Untangling altruism and parochialism in human intergroup conflict

BOHM, R. M., Glowacki, L., Rusch, H., & Thielmann, I. (2024) · iScience · doi:10.1016/j.isci.2025.113978 · Cited by 2 · see citing works

The Coevolution of Parochial Altruism and War

Choi, J.-K., & Bowles, S. (2007) · Science · doi:10.1126/science.1144237 · Cited by 1,227 · see citing works

Parochialism, Altruism, and War

Bowles, S., & Gintis, H. M. (2011) · Princeton University Press eBooks · doi:10.23943/princeton/9780691151250.003.0008