Abstract:
:Social dilemmas force players to balance between personal and collective gain. In many dilemmas, such as elected governments negotiating climate-change mitigation measures, the decisions are made not by individual players but by their representatives. However, the behaviour of representatives in social dilemmas has not been investigated experimentally. Here inspired by the negotiations for greenhouse-gas emissions reductions, we experimentally study a collective-risk social dilemma that involves representatives deciding on behalf of their fellow group members. Representatives can be re-elected or voted out after each consecutive collective-risk game. Selfish players are preferentially elected and are hence found most frequently in the 'representatives' treatment. Across all treatments, we identify the selfish players as extortioners. As predicted by our mathematical model, their steadfast strategies enforce cooperation from fair players who finally compensate almost completely the deficit caused by the extortionate co-players. Everybody gains, but the extortionate representatives and their groups gain the most.
journal_name
Nat Communjournal_title
Nature communicationsauthors
Milinski M,Hilbe C,Semmann D,Sommerfeld R,Marotzke Jdoi
10.1038/ncomms10915subject
Has Abstractpub_date
2016-03-07 00:00:00pages
10915issn
2041-1723pii
ncomms10915journal_volume
7pub_type
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