The evolution of judgement bias in indirect reciprocity Export

@article{citeulike:3900486, abstract = {10.1098/rspb.2008.1715 Indirect reciprocity is a form of reciprocity where help is given to individuals based on their reputation. In indirect reciprocity, bad acts (such as not helping) reduce an individual's reputation while good acts (such as helping) increase an individual's reputation. Studies of indirect reciprocity assume that good acts and bad acts are weighted equally when assessing the reputation of an individual. As different information can be processed in different ways, this is not likely to be the case, and it is possible that an individual could bias an actor's reputation by putting more weight to acts of defection (not helping) than acts of co-operation (helping) or . We term this difference \^{a}€˜judgement bias\^{a}€™, and build an individual-based model of image scoring to investigate the conditions under which it may evolve. We find that, if the benefits of co-operation are small, judgement bias is weighted towards acts perceived to be bad; if the benefits are high, the reverse is true. Our result is consistent under both scoring and standing strategies, and we find that allowing judgement bias to evolve increases the level of co-operation in the population.}, author = {Rankin, Daniel J. and Eggimann, Franziska}, citeulike-article-id = {3900486}, citeulike-linkout-0 = {http://dx.doi.org/10.1098/rspb.2008.1715}, citeulike-linkout-1 = {http://rspb.royalsocietypublishing.org/content/276/1660/1339.abstract}, citeulike-linkout-2 = {http://rspb.royalsocietypublishing.org/content/276/1660/1339.full.pdf}, citeulike-linkout-3 = {http://view.ncbi.nlm.nih.gov/pubmed/19141419}, citeulike-linkout-4 = {http://www.hubmed.org/display.cgi?uids=19141419}, citeulike-linkout-5 = {http://journals.royalsociety.org/content/p37m4l1q85317258}, day = {7}, doi = {10.1098/rspb.2008.1715}, journal = {Proceedings of the Royal Society B: Biological Sciences}, keywords = {reputation}, month = {April}, number = {1660}, pages = {1339--1345}, posted-at = {2009-11-05 14:15:03}, priority = {2}, title = {The evolution of judgement bias in indirect reciprocity}, url = {http://dx.doi.org/10.1098/rspb.2008.1715}, volume = {276}, year = {2009} }

TY - JOUR ID - citeulike:3900486 L3 - citeulike-article-id:3900486 N2 - 10.1098/rspb.2008.1715 Indirect reciprocity is a form of reciprocity where help is given to individuals based on their reputation. In indirect reciprocity, bad acts (such as not helping) reduce an individual's reputation while good acts (such as helping) increase an individual's reputation. Studies of indirect reciprocity assume that good acts and bad acts are weighted equally when assessing the reputation of an individual. As different information can be processed in different ways, this is not likely to be the case, and it is possible that an individual could bias an actor's reputation by putting more weight to acts of defection (not helping) than acts of co-operation (helping) or . We term this difference ‘judgement bias’, and build an individual-based model of image scoring to investigate the conditions under which it may evolve. We find that, if the benefits of co-operation are small, judgement bias is weighted towards acts perceived to be bad; if the benefits are high, the reverse is true. Our result is consistent under both scoring and standing strategies, and we find that allowing judgement bias to evolve increases the level of co-operation in the population. IS - 1660 JF - Proceedings of the Royal Society B: Biological Sciences EP - 1345 TI - The evolution of judgement bias in indirect reciprocity VL - 276 SP - 1339 KW - reputation AU - Rankin, Daniel AU - Eggimann, Franziska PY - 2009/04/07/ UR - http://dx.doi.org/10.1098/rspb.2008.1715 ER -