Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Biophysical Approach to Production Theory   Most people agree that human activities are consistent with physical laws.
One may naturally think that sensible economic theories can be derived from
physical laws and evolutionary principles. This is indeed the case. In this
paper, we present a newly developed production theory of economics from
biophysical principles. The theory is a compact analytical model that provides,
in our view, a much more realistic understanding of economic (as well as social
and biological) phenomena than the neoclassical theory of production.

8
The categories of this paper are: hep-ex
20
The categories of this paper are: acc-phys
21
The categories of this paper are: adap-org
28
The categories of this paper are: alg-geom
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
34
The categories of this paper are: chem-ph
36
The categories of this paper are: cmp-lg
30
The categories of this paper are: q-alg
11
The categories of this paper are: hep-lat
37
The categories of this paper are: supr-con
1
The categories of this paper are: cs
33
The categories of this paper are: plasm-ph
15
The categories of this paper are: nucl-ex
27
The categories of this paper are: comp-gas