Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Randomness enhances cooperation: a resonance type phenomenon in
  evolutionary games   We investigate the effect of randomness in both relationships and decisions
on the evolution of cooperation. Simulation results show, in such randomness'
presence, the system evolves to a more frequency cooperation state than in its
absence. Specifically, there is an optimal amount of randomness, which can
induce the highest level of cooperation. The mechanism of randomness promoting
cooperation resembles a coherence-resonance-like fashion, which could be of
particular interest in evolutionary game dynamics in economic, biological and
social systems.

37
The categories of this paper are: supr-con
28
The categories of this paper are: alg-geom
8
The categories of this paper are: hep-ex
29
The categories of this paper are: funct-an
9
The categories of this paper are: nlin
7
The categories of this paper are: hep-th
19
The categories of this paper are: eess
32
The categories of this paper are: atom-ph
2
The categories of this paper are: math
34
The categories of this paper are: chem-ph
35
The categories of this paper are: mtrl-th
30
The categories of this paper are: q-alg
15
The categories of this paper are: nucl-ex
12
The categories of this paper are: nucl-th
22
The categories of this paper are: chao-dyn
31
The categories of this paper are: ao-sci