Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Generalization of the Aoki-Yoshikawa sectoral productivity model based
  on extreme physical information principle   This paper presents a continuous variable generalization of the
Aoki-Yoshikawa sectoral productivity model. Information theoretical methods
from the Frieden-Soffer extreme physical information statistical estimation
methodology were used to construct exact solutions. Both approaches coincide in
first order approximation. The approach proposed here can be successfully
applied in other fields of research.

8
The categories of this paper are: hep-ex
33
The categories of this paper are: plasm-ph
14
The categories of this paper are: math-ph
5
The categories of this paper are: gr-qc
15
The categories of this paper are: nucl-ex
29
The categories of this paper are: funct-an
32
The categories of this paper are: atom-ph
37
The categories of this paper are: supr-con
21
The categories of this paper are: adap-org
27
The categories of this paper are: comp-gas
3
The categories of this paper are: physics
9
The categories of this paper are: nlin
34
The categories of this paper are: chem-ph
7
The categories of this paper are: hep-th
0
The categories of this paper are: hep-ph
23
The categories of this paper are: solv-int