{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,1]],"date-time":"2026-01-01T13:47:46Z","timestamp":1767275266131},"reference-count":50,"publisher":"World Scientific Pub Co Pte Ltd","issue":"02","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Advs. Complex Syst."],"published-print":{"date-parts":[[2014,3]]},"abstract":"<jats:p>The evolution of unconditional cooperation is one of the fundamental problems in science. A new solution is proposed to solve this puzzle. We treat this issue with an evolutionary model in which agents play the Prisoner's Dilemma on signed networks. The topology is allowed to co-evolve with relational signs as well as with agent strategies. We introduce a strategy that is conditional on the emotional content embedded in network signs. We show that this strategy acts as a catalyst and creates favorable conditions for the spread of unconditional cooperation. In line with the literature, we found evidence that the evolution of cooperation most likely occurs in networks with relatively high chances of rewiring and with low likelihood of strategy adoption. While a low likelihood of rewiring enhances cooperation, a very high likelihood seems to limit its diffusion. Furthermore, unlike in nonsigned networks, cooperation becomes more prevalent in denser topologies.<\/jats:p>","DOI":"10.1142\/s0219525914500118","type":"journal-article","created":{"date-parts":[[2014,6,9]],"date-time":"2014-06-09T08:52:53Z","timestamp":1402303973000},"page":"1450011","source":"Crossref","is-referenced-by-count":15,"title":["EMOTIONAL STRATEGIES AS CATALYSTS FOR COOPERATION IN SIGNED NETWORKS"],"prefix":"10.1142","volume":"17","author":[{"given":"SIMONE","family":"RIGHI","sequence":"first","affiliation":[{"name":"MTA TK \"Lend\u00fclet\" Research Center for Educational and Network Studies (RECENS), Hungarian Academy of Sciences, Orsz\u00e1gh\u00e1z utca 30, Budapest 1014, Hungary"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"K\u00c1ROLY","family":"TAK\u00c1CS","sequence":"additional","affiliation":[{"name":"MTA TK \"Lend\u00fclet\" Research Center for Educational and Network Studies (RECENS), Hungarian Academy of Sciences, Orsz\u00e1gh\u00e1z utca 30, Budapest 1014, Hungary"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"219","published-online":{"date-parts":[[2014,6,20]]},"reference":[{"key":"rf1","volume-title":"The Evolution of Cooperation","author":"Axelrod R.","year":"1984"},{"key":"rf2","series-title":"Princeton studies in complexity","doi-asserted-by":"crossref","DOI":"10.1515\/9781400822300","volume-title":"The Complexity of Cooperation: Agent-Based Models of Competition and Collaboration","author":"Axelrod R.","year":"1997"},{"key":"rf3","doi-asserted-by":"publisher","DOI":"10.1126\/science.7466396"},{"key":"rf4","doi-asserted-by":"publisher","DOI":"10.1016\/j.tpb.2003.07.001"},{"key":"rf5","first-page":"91","volume":"57","author":"Burt R. 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