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People prefer coordinated punishment in cooperative interactions


Human groups can often maintain high levels of cooperation despite the threat of exploitation by individuals who reap the benefits of cooperation without contributing to its costs1,2,3,4. Prominent theoretical models suggest that cooperation is particularly likely to thrive if people join forces to curb free riding and punish their non-contributing peers in a coordinated fashion5. However, it is unclear whether and, if so, how people actually condition their punishment of peers on punishment behaviour by others. Here we provide direct evidence that many people prefer coordinated punishment. With two large-scale decision-making experiments (total n= 4,320), we create minimal and controlled conditions to examine preferences for conditional punishment and cleanly identify how the punishment decisions of individuals are impacted by the punishment behaviour by others. We find that the most frequent preference is to punish a peer only if another (third) individual does so as well. Coordinated punishment is particularly common among participants who shy away from initiating punishment. With an additional experiment we further show that preferences for conditional punishment are unrelated to well-studied preferences for conditional cooperation. Our results highlight the importance of conditional preferences in both positive and negative reciprocity, and they provide strong empirical support for theories that explain cooperation based on coordinated punishment.

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Fig. 1: Experimental sequence.
Fig. 2: Distribution of punishment types by decision in unconditional punishment stage.
Fig. 3: Anger levels per punishment type.
Fig. 4: The (lack of) correlation between individuals’ preferences for conditional cooperation and conditional punishment.

Data availability

All data underlying the results reported in our manuscript can be found on Github at

Code availability

The LIONESS code for the online experiment is available upon request from the corresponding authors. Analysis code for STATA can be found on Github at


  1. 1.

    Fehr, E., Fischbacher, U. & Gächter, S. Strong reciprocity, human cooperation, and the enforcement of social norms. Hum. Nat. 13, 1–25 (2002).

    PubMed  Google Scholar 

  2. 2.

    Bowles, S. & Gintis, H. A Cooperative Species: Human Reciprocity and Its Evolution (Princeton Univ. Press, 2011).

  3. 3.

    Rand, D. G. & Nowak, M. A. Human cooperation. Trends Cogn. Sci. 17, 413–425 (2013).

    PubMed  PubMed Central  Google Scholar 

  4. 4.

    Hammerstein, P. (ed.) Genetic and Cultural Evolution of Cooperation. (MIT Press, 2003).

  5. 5.

    Boyd, R., Gintis, H. & Bowles, S. Coordinated punishment of defectors sustains cooperation and can proliferate when rare. Science 328, 617–620 (2010).

    CAS  PubMed  Google Scholar 

  6. 6.

    Hamilton, W. D. The genetical evolution of social behaviour I and II. J. Theor. Biol. 7, 1–52 (1964).

    CAS  PubMed  PubMed Central  Google Scholar 

  7. 7.

    Gintis, H. Game Theory Evolving: A Problem-centered Introduction to Modeling Strategic Interaction (Princeton Univ. Press, 2000).

  8. 8.

    Dietz, T., Ostrom, E. & Stern, P. C. The struggle to govern the commons. Science 302, 1907–1912 (2003).

    CAS  PubMed  Google Scholar 

  9. 9.

    Nowak, M. A. Five rules for the evolution of cooperation. Science 314, 1560–1563 (2006).

    CAS  PubMed  PubMed Central  Google Scholar 

  10. 10.

    Lehmann, L. & Keller, L. The evolution of cooperation and altruism—a general framework and a classification of models. J. Evol. Biol. 19, 1365–1376 (2006).

    CAS  PubMed  Google Scholar 

  11. 11.

    Egas, M. & Riedl, A. The economics of altruistic punishment and the maintenance of cooperation. Proc. R. Soc. Lond. B 275, 871–878 (2008).

    Google Scholar 

  12. 12.

    Fischbacher, U. & Gachter, S. Social preferences, beliefs, and the dynamics of free riding in public good experiments. Am. Econ. Rev. 100, 541–556 (2010).

    Google Scholar 

  13. 13.

    Burton-Chellew, M. N., El Mouden, C. & West, S. A. Social learning and the demise of costly cooperation in humans. Proc. R. Soc. B 284, 20170067 (2017).

    PubMed  Google Scholar 

  14. 14.

    Gächter, S., Kölle, F. & Quercia, S. Reciprocity and the tragedies of maintaining and providing the commons. Nat. Hum. Behav. 1, 650 (2017).

    PubMed  PubMed Central  Google Scholar 

  15. 15.

    Boehm, C. Hierarchy in the Forest: Egalitarianism and the Evolution of Human Altruism (Harvard Univ. Press, 1999).

  16. 16.

    Sigmund, K. Punish or perish? Retaliation and collaboration among humans. Trends Ecol. Evol. 22, 593–600 (2007).

    PubMed  Google Scholar 

  17. 17.

    Guala, F. Reciprocity: weak or strong? What punishment experiments do (and do not) demonstrate. Behav. Brain Sci. 35, 1–15 (2012).

    PubMed  Google Scholar 

  18. 18.

    Fehr, E. & Schurtenberger, I. Normative foundations of human cooperation. Nat. Hum. Behav. 2, 458 (2018).

    PubMed  Google Scholar 

  19. 19.

    Ostrom, E., Walker, J. & Gardner, R. Covenants with and without a sword: self-governance is possible. Am. Polit. Sci. Rev. 86, 404–417 (1992).

    Google Scholar 

  20. 20.

    Fehr, E. & Gächter, S. Cooperation and punishment in public goods experiments. Am. Econ. Rev. 90, 980–994 (2000).

    Google Scholar 

  21. 21.

    Fehr, E. & Gächter, S. Altruistic punishment in humans. Nature 415, 137–140 (2002).

    CAS  PubMed  Google Scholar 

  22. 22.

    Henrich, J. et al. In search of homo economicus: behavioral experiments in 15 small-scale societies. Am. Econ. Rev. 91, 73–78 (2001).

    Google Scholar 

  23. 23.

    Henrich, J. et al. Costly punishment across human societies. Science 312, 1767–1770 (2006).

    CAS  PubMed  Google Scholar 

  24. 24.

    Dreber, A., Rand, D. G., Fudenberg, D. & Nowak, M. A. Winners don’t punish. Nature 452, 348 (2008).

    CAS  PubMed  PubMed Central  Google Scholar 

  25. 25.

    Herrmann, B., Thöni, C. & Gächter, S. Antisocial punishment across societies. Science 319, 1362–1367 (2008).

    CAS  PubMed  Google Scholar 

  26. 26.

    Gächter, S., Renner, E. & Sefton, M. The long-run benefits of punishment. Science 322, 1510–1510 (2008).

    PubMed  Google Scholar 

  27. 27.

    Cubitt, R. P., Drouvelis, M. & Gächter, S. Framing and free riding: emotional responses and punishment in social dilemma games. Exp. Econ. 14, 254–272 (2011).

    Google Scholar 

  28. 28.

    Raihani, N. J., Thornton, A. & Bshary, R. Punishment and cooperation in nature. Trends Ecol. Evol. 27, 288–295 (2012).

    PubMed  Google Scholar 

  29. 29.

    Arechar, A. A., Gächter, S. & Molleman, L. Conducting interactive experiments online. Exp. Econ. 21, 99–131 (2018).

    PubMed  Google Scholar 

  30. 30.

    Panchanathan, K. & Boyd, R. A tale of two defectors: the importance of standing for evolution of indirect reciprocity. J. Theor. Biol. 224, 115–126 (2003).

    PubMed  Google Scholar 

  31. 31.

    Gardner, A. & West, S. A. Cooperation and punishment, especially in humans. Am. Nat. 164, 753–764 (2004).

    PubMed  Google Scholar 

  32. 32.

    Lehmann, L., Rousset, F., Roze, D. & Keller, L. Strong reciprocity or strong ferocity? A population genetic view of the evolution of altruistic punishment. Am. Nat. 170, 21–36 (2007).

    PubMed  Google Scholar 

  33. 33.

    Heckathorn, D. D. Collective action and the second-order free-rider problem. Ration. Soc. 1, 78–100 (1989).

    Google Scholar 

  34. 34.

    Panchanathan, K. & Boyd, R. Indirect reciprocity can stabilize cooperation without the second-order free rider problem. Nature 432, 499 (2004).

    CAS  PubMed  Google Scholar 

  35. 35.

    Sigmund, K., De Silva, H., Traulsen, A. & Hauert, C. Social learning promotes institutions for governing the commons. Nature 466, 861–863 (2010).

    CAS  PubMed  Google Scholar 

  36. 36.

    Barclay, P. Reputational benefits for altruistic punishment. Evol. Hum. Behav. 27, 325–344 (2006).

    Google Scholar 

  37. 37.

    dos Santos, M., Rankin, D. J. & Wedekind, C. The evolution of punishment through reputation. Proc. R. Soc. Lond. B 278, 371–377 (2011).

    Google Scholar 

  38. 38.

    dos Santos, M., Rankin, D. J. & Wedekind, C. Human cooperation based on punishment reputation. Evolution 67, 2446–2450 (2013).

    PubMed  Google Scholar 

  39. 39.

    Raihani, N. J. & Bshary, R. The reputation of punishers. Trends Ecol. Evol. 30, 98–103 (2015).

    PubMed  Google Scholar 

  40. 40.

    Henrich, J. & Boyd, R. Why people punish defectors. J. Theor. Biol. 208, 79–89 (2001).

    CAS  PubMed  Google Scholar 

  41. 41.

    Boyd, R. & Richerson, P. J. Punishment allows the evolution of cooperation (or anything else) in sizable groups. Ethol. Sociobiol. 13, 171–195 (1992).

    Google Scholar 

  42. 42.

    Kiyonari, T. & Barclay, P. Cooperation in social dilemmas: free riding may be thwarted by second-order reward rather than by punishment. J. Pers. Soc. Psychol. 95, 826 (2008).

    PubMed  Google Scholar 

  43. 43.

    Fu, T., Ji, Y., Kamei, K. & Putterman, L. Punishment can support cooperation even when punishable. Econ. Lett. 154, 84–87 (2017).

    Google Scholar 

  44. 44.

    Szolnoki, A., Szabó, G. & Perc, M. Phase diagrams for the spatial public goods game with pool punishment. Phys. Rev. E 83, 036101 (2011).

    Google Scholar 

  45. 45.

    Traulsen, A., Röhl, T. & Milinski, M. An economic experiment reveals that humans prefer pool punishment to maintain the commons. Proc. R. Soc. B 279, 3716–3721 (2012).

    PubMed  Google Scholar 

  46. 46.

    Yamagishi, T. The provision of a sanctioning system as a public good. J. Pers. Soc. Psychol. 51, 110 (1986).

    Google Scholar 

  47. 47.

    Ostrom, E. Governing the Commons (Cambridge Univ. Press, 2015).

  48. 48.

    Hilbe, C., Traulsen, A., Röhl, T. & Milinski, M. Democratic decisions establish stable authorities that overcome the paradox of second-order punishment. Proc. Natl Acad. Sci., USA 111, 752–756 (2014).

    CAS  PubMed  Google Scholar 

  49. 49.

    Szolnoki, A. & Perc, M. Effectiveness of conditional punishment for the evolution of public cooperation. J. Theor. Biol. 325, 34–41 (2013).

    PubMed  Google Scholar 

  50. 50.

    FeldmanHall, O., Otto, A. R. & Phelps, E. A. Learning moral values: Another’s desire to punish enhances one’s own punitive behavior. J. Exp. Psychol. Gen. 147, 1211 (2018).

    PubMed  PubMed Central  Google Scholar 

  51. 51.

    Son, J.-Y., Bhandari, A. & FeldmanHall, O. Crowdsourcing punishment: individuals reference group preferences to inform their own punitive decisions. Scientific Reports 9, 11625 (2019).

    PubMed  PubMed Central  Google Scholar 

  52. 52.

    Mahdi, N. Q. Pukhtunwali: ostracism and honor among the Pathan hill tribes. Ethol. Sociobiol. 7, 295–304 (1986).

    Google Scholar 

  53. 53.

    Wiessner, P. Norm enforcement among the Ju/’hoansi Bushmen. Hum. Nat. 16, 115–145 (2005).

    PubMed  Google Scholar 

  54. 54.

    Mathew, S. & Boyd, R. Punishment sustains large-scale cooperation in prestate warfare. Proc. Natl Acad. Sci. USA 108, 11375–11380 (2011).

    CAS  PubMed  Google Scholar 

  55. 55.

    Gürerk, Ö., Irlenbusch, B. & Rockenbach, B. The competitive advantage of sanctioning institutions. Science 312, 108–111 (2006).

    PubMed  Google Scholar 

  56. 56.

    Ertan, A., Page, T. & Putterman, L. Who to punish? Individual decisions and majority rule in mitigating the free rider problem. Eur. Econ. Rev. 53, 495–511 (2009).

    Google Scholar 

  57. 57.

    Casari, M. & Luini, L. Cooperation under alternative punishment institutions: An experiment. J. Econ. Behav. Organ. 71, 273–282 (2009).

    Google Scholar 

  58. 58.

    Casari, M. & Luini, L. Peer punishment in teams: expressive or instrumental choice? Exp. Econ. 15, 241–259 (2012).

    Google Scholar 

  59. 59.

    Kamei, K. Conditional punishment. Econ. Lett. 124, 199–202 (2014).

    Google Scholar 

  60. 60.

    Cheung, S. L. New insights into conditional cooperation and punishment from a strategy method experiment. Exp. Econ. 17, 129–153 (2014).

    Google Scholar 

  61. 61.

    Peysakhovich, A. & Rand, D. G. Habits of virtue: Creating norms of cooperation and defection in the laboratory. Manag. Sci. 62, 631–647 (2015).

    Google Scholar 

  62. 62.

    Albrecht, F., Kube, S. & Traxler, C. Cooperation and norm enforcement-the individual-level perspective. J. Public Econ. 165, 1–16 (2017).

    Google Scholar 

  63. 63.

    Selten, R. Die Strategiemethode zur erforschung des eingeschränkt rationalen verhaltens im rahmen eines oligopolexperimentes. in Beiträge zur experimentellen Wirtschaftsforschung: Seminar für Mathemat. Wirtschaftsforschung u. Ökonometrie (ed. Sauermann, H.) 136–168 (J.C.B. Mohr, 1965).

  64. 64.

    Bosman, R. & Van Winden, F. Emotional hazard in a power-to-take experiment. Econ. J. 112, 147–169 (2002).

    Google Scholar 

  65. 65.

    Falk, A., Fehr, E. & Fischbacher, U. Driving forces behind informal sanctions. Econometrica 73, 2017–2030 (2005).

    Google Scholar 

  66. 66.

    Hopfensitz, A. & Reuben, E. The importance of emotions for the effectiveness of social punishment. Econ. J. 119, 1534–1559 (2009).

    Google Scholar 

  67. 67.

    Nelissen, R. M. A. & Zeelenberg, M. Moral emotions as determinants of third-party punishment: anger, guilt, and the functions of altruistic sanctions. Judgm. Decis. Mak. 4, 543–553 (2009).

    Google Scholar 

  68. 68.

    Gächter, S. & Herrmann, B. Reciprocity, culture and human cooperation: previous insights and a new cross-cultural experiment. Philos. Trans. R. Soc. B 364, 791–806 (2009).

    Google Scholar 

  69. 69.

    Gächter, S. & Herrmann, B. The limits of self-governance when cooperators get punished: experimental evidence from urban and rural Russia. Eur. Econ. Rev. 55, 193–210 (2011).

    Google Scholar 

  70. 70.

    Elster, J. Norms of revenge. Ethics 100, 862–885 (1990).

    Google Scholar 

  71. 71.

    Nikiforakis, N. Punishment and counter-punishment in public good games: can we really govern ourselves? J. Public Econ. 92, 91–112 (2008).

    Google Scholar 

  72. 72.

    Cialdini, R. B. & Trost, M. R. The Handbook of Social Psychology 4th edn, Vols. 1 and 2 (eds. Gilbert, D. T. et al.) 151–192 (McGraw-Hill, 1998).

  73. 73.

    Thöni, C. & Volk, S. Conditional cooperation: review and refinement. Econ. Lett. 171, 37–40 (2018).

    Google Scholar 

  74. 74.

    Weber, T. O., Weisel, O. & Gächter, S. Dispositional free riders do not free ride on punishment. Nat. Commun. 9, 2390 (2018).

    PubMed  PubMed Central  Google Scholar 

  75. 75.

    Peysakhovich, A., Nowak, M. A. & Rand, D. G. Humans display a ‘cooperative phenotype’ that is domain general and temporally stable. Nat. Commun. 5, 4939 (2014).

    CAS  PubMed  Google Scholar 

  76. 76.

    Fischbacher, U., Gächter, S. & Fehr, E. Are people conditionally cooperative? Evidence from a public goods experiment. Econ. Lett. 71, 397–404 (2001).

    Google Scholar 

  77. 77.

    Dohmen, T., Falk, A., Huffman, D. & Sunde, U. Homo reciprocans: survey evidence on behavioural outcomes. Econ. J. 119, 592–612 (2009).

    Google Scholar 

  78. 78.

    Yamagishi, T. et al. Rejection of unfair offers in the ultimatum game is no evidence of strong reciprocity. Proc. Natl Acad. Sci. USA 109, 20364–20368 (2012).

    CAS  PubMed  Google Scholar 

  79. 79.

    Egloff, B., Richter, D. & Schmukle, S. C. Need for conclusive evidence that positive and negative reciprocity are unrelated. Proc. Natl Acad. Sci. USA 110, E786–E786 (2013).

    CAS  PubMed  Google Scholar 

  80. 80.

    Eriksson, K., Cownden, D., Ehn, M. & Strimling, P. ‘Altruistic’ and ‘antisocial’ punishers are one and the same. Rev. Behav. Econ. 1, 209–221 (2014).

    Google Scholar 

  81. 81.

    Difallah, D. E., Catasta, M., Demartini, G., Ipeirotis, P. G. & Cudré-Mauroux, P. The dynamics of micro-task crowdsourcing: the case of amazon MTurk. In Proc. 24th International Conference On World Wide Web 238–247 (International World Wide Web Conferences Steering Committee, 2015).

  82. 82.

    Paolacci, G., Chandler, J. & Ipeirotis, P. G. Running experiments on Amazon Mechanical Turk. Judgm. Decis. Mak. 5, 411–419 (2010).

    Google Scholar 

  83. 83.

    Horton, J. J., Rand, D. G. & Zeckhauser, R. J. The online laboratory: conducting experiments in a real labor market. Exp. Econ. 14, 399–425 (2011).

    Google Scholar 

  84. 84.

    Berinsky, A. J., Huber, G. A. & Lenz, G. S. Evaluating online labor markets for experimental research:’s Mechanical Turk. Polit. Anal. 20, 351–368 (2012).

    Google Scholar 

  85. 85.

    Balafoutas, L., Nikiforakis, N. & Rockenbach, B. Direct and indirect punishment among strangers in the field. Proc. Natl Acad. Sci. USA 111, 15924–15927 (2014).

    CAS  PubMed  Google Scholar 

  86. 86.

    Balafoutas, L., Nikiforakis, N. & Rockenbach, B. Altruistic punishment does not increase with the severity of norm violations in the field. Nat. Commun. 7, 13327 (2016).

    CAS  PubMed  PubMed Central  Google Scholar 

  87. 87.

    Raihani, N. J. & Bshary, R. The evolution of punishment in n-player public goods games: a volunteer’s dilemma. Evolution 65, 2725–2728 (2011).

    PubMed  Google Scholar 

  88. 88.

    Rand, D. G. & Nowak, M. A. The evolution of antisocial punishment in optional public goods games. Nat. Commun. 2, 434 (2011).

    PubMed  PubMed Central  Google Scholar 

  89. 89.

    Garcia, J. & Traulsen, A. Leaving the loners alone: evolution of cooperation in the presence of antisocial punishment. J. Theor. Biol. 307, 168–173 (2012).

    PubMed  Google Scholar 

  90. 90.

    McCabe, C. M. & Rand, D. G. Coordinated punishment does not proliferate when defectors can also punish cooperators. in: Antisocial Behavior: Etiology, Genetic and Environmental Influences and Clinical Management (ed. Gallo, J. H.) 1– 14 (Nova Publisher, 2014).

  91. 91.

    Huang, F., Chen, X. & Wang, L. Conditional punishment is a double-edged sword in promoting cooperation. Sci. Rep. 8, 528 (2018).

    PubMed  PubMed Central  Google Scholar 

  92. 92.

    Giamattei, M., Molleman, L., Seyed Yahosseini, K. & Gächter, S. LIONESS Lab—A Free Web-based Platform for Conducting Interactive Experiments Online. SSRN (2019).

  93. 93.

    Wooldridge, J. M. Econometric Analysis of Cross Section and Panel Data (MIT Press, 2010).

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We thank B. Beranek, P. van den Berg, J. Schulz, T. Weber and O. Weisel for insightful comments and useful discussions. This work was supported by the European Research Council (grant number ERC-AdG 295707 COOPERATION), the Economic and Social Research Council (grant numbers ES/K002201/1 and ES/P008976/1), the University of Nottingham School of Economics and the Centre of Adaptive Rationality at the Max Planck Institute for Human Development, Berlin. L.M. was further supported by the Open Research Area grant ASTA (grant number 176) and the Amsterdam Brain and Cognition Project Grant 2018. The funders had no role in the study design, data collection and analysis, decision to publish or preparation of the manuscript.

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L.M., F.K., C.S. and S.G. designed the study, L.M. and F.K. collected and analysed the data. L.M., F.K., C.S. and S.G. wrote the paper.

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Correspondence to Lucas Molleman or Felix Kölle.

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Supplementary Figs. 1–4, Supplementary Tables 1–4, Supplementary Results, Supplementary Methods and Supplementary References.

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Molleman, L., Kölle, F., Starmer, C. et al. People prefer coordinated punishment in cooperative interactions. Nat Hum Behav 3, 1145–1153 (2019).

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