Sympathy and similarity: The evolutionary dynamics of cooperation

Sigmund, K. (2009). Sympathy and similarity: The evolutionary dynamics of cooperation. Proceedings of the National Academy of Sciences 106 (21) 8405-8406. 10.1073/pnas.0903947106.

Sympathy and similarity The evolutionary dynamics of cooperation.pdf - Published Version
Available under License Creative Commons Attribution Non-commercial.

Download (164kB) | Preview


The advantage of mutual help is threatened by defectors, who exploit the benefits provided by others without providing benefits in return. Cooperation can only be sustained if it is preferentially channeled toward cooperators and away from defectors. But how? A deceptively simple idea is to distinguish cooperators from defectors by tagging them. It clearly is in the interest of cooperators to use some distinctive cue to assort with their like. Such an assortment, however, conflicts with the interests of the cheaters, who have every incentive to also acquire that tag. This makes for an inherently unstable situation. The history of evolutionary thinking on this issue is long. An article in this issue of PNAS by Antal et al. opens new ground by providing an in-depth analysis of a selection-mutation model...

Item Type: Article
Research Programs: Evolution and Ecology (EEP)
Bibliographic Reference: PNAS; 106(21):8405-8406 (26 May 2009)
Depositing User: IIASA Import
Date Deposited: 15 Jan 2016 08:42
Last Modified: 27 Aug 2021 17:20

Actions (login required)

View Item View Item

International Institute for Applied Systems Analysis (IIASA)
Schlossplatz 1, A-2361 Laxenburg, Austria
Phone: (+43 2236) 807 0 Fax:(+43 2236) 71 313