Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Periodic frequencies of the cycles in $2\times2$ games: evidence from
  experimental economics   Evolutionary dynamics provides an iconic relationship --- the periodic
frequency of a game is determined by the payoff matrix of the game. This paper
reports the first experimental evidence to demonstrate this relationship.
Evidence comes from two populations randomly-matched $2\times2$ games with 12
different payoff matrix parameters. The directions, frequencies and changes in
the radius of the cycles are measured definitively. The main finding is that
the observed periodic frequencies of the persistent cycles are significantly
different in games with different parameters. Two replicator dynamics, standard
and adjusted, are employed as predictors for the periodic frequency.
Interestingly, both of the models could infer the difference of the observed
frequencies well. The experimental frequencies linearly, positively and
significantly relate to the theoretical frequencies, but the adjusted model
performs slightly better.

3
The categories of this paper are: physics
1
The categories of this paper are: cs
34
The categories of this paper are: chem-ph
36
The categories of this paper are: cmp-lg
37
The categories of this paper are: supr-con
19
The categories of this paper are: eess
13
The categories of this paper are: quant-ph
32
The categories of this paper are: atom-ph
15
The categories of this paper are: nucl-ex
30
The categories of this paper are: q-alg
21
The categories of this paper are: adap-org
20
The categories of this paper are: acc-phys
28
The categories of this paper are: alg-geom
17
The categories of this paper are: q-fin
18
The categories of this paper are: econ
24
The categories of this paper are: dg-ga