An evolutionary Ockham's razor to reciprocity

An evolutionary Ockham's razor to reciprocity

INTRODUCTION Reciprocal altruism implies delayed payoffs by definition. It might therefore seem logical to assume that limited memory, calculation, and planning capacities have constrained the evolution of reciprocity in non-human animals. Here I will argue that this is not the case. First, I will show that the emotional track of past interactions is enough to motivate and maintain reciprocity ...

Reciprocity, Materialism and Welfare: An Evolutionary Model

This paper analyses preference evolution in a bargaining situation. We show that preferences for reciprocity, that sustain a conflict-free outcome, are viable if players have enough information about opponents’ preferences. However, depending on the initial starting point, preference evolution can in general both enhance or reduce subjective and material welfare, relative to the situation where...

Cooperation through reciprocity in multiagent systems: an evolutionary analysis

The Service Game is a model for reciprocity in multiagent systems. Here, agents interact repeatedly by requesting and providing services. In contrast to existing models where players are matched randomly, players of the Service Game may choose with whom they play. The rationale behind provider selection is to choose a provider that is likely to perform a task as desired. We develop a formal mod...

An Approach to Reducing Overfitting in FCM with Evolutionary Optimization

Fuzzy clustering methods are conveniently employed in constructing a fuzzy model of a system, but they need to tune some parameters. In this research, FCM is chosen for fuzzy clustering. Parameters such as the number of clusters and the value of fuzzifier significantly influence the extent of generalization of the fuzzy model. These two parameters require tuning to reduce the overfitting in the...

Evolutionary Pathways to Group Cooperation: Reputation, Reciprocity, and Signaling