Signalling boosts the evolution of cooperation in repeated group interactions

by   Luis A. Martinez-Vaquero, et al.

Many biological and social systems show significant levels of collective action. Several cooperation mechanisms have been proposed, yet they have been mostly studied independently. Among these, direct reciprocity supports cooperation on the basis of repeated interactions among individuals. Signals and quorum dynamics may also drive cooperation. Here, we resort to an evolutionary game theoretical model to jointly analyse these two mechanisms and study the conditions in which evolution selects for direct reciprocity, signalling, or their combination. We show that signalling alone leads to higher levels of cooperation than when combined with reciprocity, while offering additional robustness against errors. Specifically, successful strategies in the realm of direct reciprocity are often not selected in the presence of signalling, and memory of past interactions is only exploited opportunistically in case of earlier coordination failure. Differently, signalling always evolves, even when costly. In the light of these results, it may be easier to understand why direct reciprocity has been observed only in a limited number of cases among non-humans, whereas signalling is widespread at all levels of complexity.



There are no comments yet.


page 7

page 8

page 9

page 24

page 27

page 28

page 29


Early exclusion leads to cyclical cooperation in repeated group interactions

Explaining the emergence and maintenance of cooperation among selfish in...

Institutional Incentives for the Evolution of Committed Cooperation: Ensuring Participation is as Important as Enhancing Compliance

Both conventional wisdom and empirical evidence suggests that arranging ...

How costly punishment, diversity, and density of connectivity influence cooperation in a biological network

It has been an old unsolved puzzle to evolutionary theorists on which me...

Evolution of Coordination in Pairwise and Multi-player Interactions via Prior Commitments

Upon starting a collective endeavour, it is important to understand your...

Evolution of Cooperation in the Presence of Higher-Order Interactions: from Networks to Hypergraphs

Many real systems are strongly characterized by collective cooperative p...

Close spatial arrangement of mutants favors and disfavors fixation

Cooperation is ubiquitous across all levels of biological systems rangin...

Making an Example: Signalling Threat in the Evolution of Cooperation

Social punishment has been suggested as a key approach to ensuring high ...
This week in AI

Get the week's most popular data science and artificial intelligence research sent straight to your inbox every Saturday.