Prevalence of cooperation within groups of selfish individuals is puzzling in that it contradicts
with the basic premise of natural selection. Favoring players with higher fitness, the latter is …

Game theory provides a general mathematical background to study the effect of pair
interactions and evolutionary rules on the macroscopic behavior of multi-player games …

Situations where individuals have to contribute to joint efforts or share scarce resources are
ubiquitous. Yet, without proper mechanisms to ensure cooperation, the evolutionary …

Background The evolutionary origin of cooperation among unrelated individuals remains a
key unsolved issue across several disciplines. Prominent among the several mechanisms …

Strategy changes are an essential part of evolutionary games. Here, we introduce a simple
rule that, depending on the value of a single parameter w, influences the selection of players …

Human wellbeing in modern societies relies on social cohesion, which can be characterized
by high levels of cooperation and a large number of social ties. Both features, however, are …

We studied spatial Prisoner's Dilemma and Stag Hunt games where both the strategy
distribution and the players' individual noise level could evolve to reach higher individual …

Recently, a class of interesting strategies, named extortion strategies, has attracted
considerable attention since such extortion strategies can dominate any opponent in a …

We study an evolutionary spatial prisoner's dilemma game where the fitness of the players is
determined by both the payoffs from the current interaction and their history. We consider the …

We study how the clustering coefficient influences the evolution of cooperation in scale-free
public goods games. In games played by groups of individuals, triangle loops provide …