Does Inequity Aversion Motivate Punishment? Cleaner Fish as a Model System
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In human social interactions, punishment is often directed at cheating individuals. Subjective reports and neuro-imaging studies indicate that the experience of interacting with a cheat produces negative emotions and that the act of punishing a cheat assuages these feelings. However, while negative emotions may elicit punishment, the precise source of these emotions remains obscure. Specifically, it is often very difficult to tease apart whether punishing individuals are inequity averse (upset because cheating partner receives more than they should) or, more simply, whether they might be loss averse (upset because their payoffs did not meet their expectations). We compare results on punishment and inequity aversion in humans with results from a non-human model system, the cleaning mutualism between bluestreak cleaner wrasse (Labroides dimidiatus) and its reef-fish ‘clients’. Male cleaner fish are known to punish females that cheat during joint client inspections, but a recent study failed to demonstrate evidence for inequity aversion in this species. We suggest that punishment in cleaner fish may be motivated by loss aversion rather than inequity aversion. Punishment in humans might also often be motivated by loss aversion—and empirical studies that disentangle the two competing motives for punishment are a clear research priority.
KeywordsPunishment Cooperation Cleaner fish Labroides dimidiatus Inequity aversion Fairness
- Bräuer, J., & Hanus, D. (2012). Social Justice Research (forthcoming).Google Scholar
- Bshary, R. (2001). The cleaner fish market. In R. Noë, J. A. R. A. M. Van Hooff, & P. Hammerstein (Eds.), Economics in nature (pp. 145–172). Cambridge: Cambridge University Press.Google Scholar
- Camerer, C. F. (2003). Behavioral game theory: Experiments in strategic interaction. Princeton, NJ: Russell Sage Foundation, Princeton University Press.Google Scholar
- Coté, I. M. (2000). Evolution and ecology of cleaning symbioses in the sea. Oceanography and Marine Biology, 38, 311–355.Google Scholar
- Ebran, N., Julien, S., Orange, N., Saglio, P., Lemaitre, P., & Molle, G. (1999). Pore-forming properties and antibacterial activity of proteins extracted from epidermal mucus of fish. Comparative Biochemistry and Physiology, Part A: Molecular & Integrative Physiology, 122, 181–189.CrossRefGoogle Scholar
- Horowitz, A. (2012). Fair is fine, but more is better: Limits to inequity aversion in the domestic dog. Social Justice Research, 25. doi: 10.1007/s11211-012-0158-7.
- Ledyard, J. (1995). Public goods: A survey of experimental research. In J. Kagel & A. Roth (Eds.), Handbook of experimental economics. Princeton, NJ: Princeton University Press.Google Scholar
- Massen, J. J. M., van den Berg, L. M., Spruijt, B. M., & Sterck, E. H. M. (2011). Inequity aversion in relation to effort and relationship quality in long-tailed macaques (Macaca fascicularis). American Journal of Primatology, 73, 1–12.Google Scholar
- Pierce, J., & Bekoff, M. (2012). Wild justice redux: What we know about social justice in animals and why it matters. Social Justice Research, 25. doi: 10.1007/s11211-012-0154-y.
- Price, S. A., & Brosnan, S. F. (2012). To each according to his need? Variability in the responses to inequity in non-human primates. Social Justice Research, 25. doi: 10.1007/s11211-012-0153-z.
- Raihani, N. J., Grutter, A. S., & Bshary, R. (2012). Female cleaner fish cooperate more with unfamiliar males. Proceedings of the Royal Society of London. Series B: Biological Sciences. doi: 10.1098/rspb.2012.0063.
- Raihani, N. J., McAuliffe, K., Brosnan, S. F., & Bshary, R. Are cleaner fish (Labroides dimidiatus) inequity averse? Animal Behaviour (under review).Google Scholar
- Raihani, N. J., Thornton, A. N., & Bshary, R. (2012). Punishment and cooperation in nature. Trends in Ecology & Evolution. doi: 10.1016/j.tree.2011.12.004.
- Randall, J. E. (1958). A review of the Labrid Fish genus Labroides with descriptions of two new species and notes on ecology. Pacific Science, 12, 327–347.Google Scholar
- Range, F., Leitner, K., & Virányi, Z. (2012). The influence of the relationship and motivation on inequity aversion in dogs. Social Justice Research, 25. doi: 10.1007/s11211-012-0155-x
- Roth, A. E., & Schoumaker, F. (1983). Expectations and reputations in bargaining: An experimental study. American Economic Review, 73, 362–372.Google Scholar
- Slembeck, T. (1999) Reputations and fairness in bargaining—experimental evidence from a repeated ultimatum game with fixed opponents. Discussion Paper, University of St. Gallen.Google Scholar
- Yamamoto, S., & Takimoto, A. (2012). Social Justice Research (forthcoming).Google Scholar