Recent decades have seen a rise in the use of physics methods to study different societal
phenomena. This development has been due to physicists venturing outside of their …

Why would natural selection favor the prevalence of cooperation within the groups of selfish
individuals? A fruitful framework to address this question is evolutionary game theory, the …

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 …

Networks form the backbone of many complex systems, ranging from the Internet to human
societies. Accordingly, not only is the range of our interactions limited and thus best …

The efficiency of institutionalized punishment is studied by evaluating the stationary states in
the spatial public goods game comprising unconditional defectors, cooperators, and …

The pursuit of highest payoffs in evolutionary social dilemmas is risky and sometimes inferior
to conformity. Choosing the most common strategy within the interaction range is safer …

Traditionally, the evolution of cooperation has been studied on single, isolated networks. Yet
a player, especially in human societies, will typically be a member of many different …

Ecology Letters (2011) 14: 546–551 Abstract The ubiquity of cooperation in nature is
puzzling because cooperators can be exploited by defectors. Recent theoretical work shows …

Moment closure methods appear in myriad scientific disciplines in the modelling of complex
systems. The goal is to achieve a closed form of a large, usually even infinite, set of coupled …

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 …