Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Evolution and Gravitation: a Computer Simulation of a Non-Walrasian
  Equilibrium Model   The paper contains a computer simulation concerning a basic non-Walrasian
equilibrium system, following the Edmond Malinvaud "short side" approach, as
far as the price adjustment is concerned, and the sequential Hicksian "weeks"
structure with regard of the temporal characterization.

20
The categories of this paper are: acc-phys
11
The categories of this paper are: hep-lat
14
The categories of this paper are: math-ph
24
The categories of this paper are: dg-ga
9
The categories of this paper are: nlin
23
The categories of this paper are: solv-int
4
The categories of this paper are: cond-mat
28
The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
37
The categories of this paper are: supr-con
35
The categories of this paper are: mtrl-th
2
The categories of this paper are: math
26
The categories of this paper are: bayes-an
16
The categories of this paper are: stat
21
The categories of this paper are: adap-org
13
The categories of this paper are: quant-ph