Attila Szolnoki (Avtor), Matjaž Perc (Avtor)

Povzetek

We study the evolution of cooperation in the spatial prisoner%s dilemma game, where besides unconditional cooperation and defection, tit-for-tat, win-stay-lose-shift and extortion are the five competing strategies. While pairwise imitation fails to sustain unconditional cooperation and extortion regardless of game parametrization, myopic updating gives rise to the coexistence of all five strategies if the temptation to defect is sufficiently large or if the degree distribution of the interaction network is heterogeneous. This counterintuitive evolutionary outcome emerges as a result of an unexpected chain of strategy invasions. Firstly, defectors emerge and coarsen spontaneously among players adopting win-stay-lose-shift. Secondly, extortioners and players adopting tit-for-tat emerge and spread via neutral drift among the emerged defectors. And lastly, among the extortioners, cooperators become viable too. These recurrent evolutionary invasions yield a five-strategy phase that is stable irrespective of the system size and the structure of the interaction network, and they reveal the most unexpected mechanism that stabilizes extortion and cooperation in an evolutionary setting.

Ključne besede

socialna dilema;evolucijske igre;kolektivni pojav;fazni prehodi;fizika socioloških sistemov;social dilemma;evolutionary games;collective phenomena;phase transitions;physics of social systems;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UM FNM - Fakulteta za naravoslovje in matematiko
UDK: 53
COBISS: 20696072 Povezava se bo odprla v novem oknu
ISSN: 2045-2322
Št. ogledov: 677
Št. prenosov: 307
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarne ključne besede: socialna dilema;evolucijske igre;kolektivni pojav;fazni prehodi;fizika socioloških sistemov;
URN: URN:SI:UM:
Vrsta dela (COBISS): Znanstveno delo
Strani: str. 1-6
Letnik: ǂVol. ǂ4
Zvezek: ǂart. no. ǂ5496
Čas izdaje: 2014
DOI: 10.1038/srep05496
ID: 10844191