Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A bird's-eye view of scientific trading: Dependency relations among
  fields of science   We use a trading metaphor to study knowledge transfer in the sciences as well
as the social sciences. The metaphor comprises four dimensions: (a) Discipline
Self-dependence, (b) Knowledge Exports/Imports, (c) Scientific Trading
Dynamics, and (d) Scientific Trading Impact. This framework is applied to a
dataset of 221 Web of Science subject categories. We find that: (i) the
Scientific Trading Impact and Dynamics of Materials Science And Transportation
Science have increased; (ii) Biomedical Disciplines, Physics, And Mathematics
are significant knowledge exporters, as is Statistics & Probability; (iii) in
the social sciences, Economics, Business, Psychology, Management, And Sociology
are important knowledge exporters; (iv) Discipline Self-dependence is
associated with specialized domains which have ties to professional practice
(e.g., Law, Ophthalmology, Dentistry, Oral Surgery & Medicine, Psychology,
Psychoanalysis, Veterinary Sciences, And Nursing).

24
The categories of this paper are: dg-ga
7
The categories of this paper are: hep-th
15
The categories of this paper are: nucl-ex
18
The categories of this paper are: econ
21
The categories of this paper are: adap-org
16
The categories of this paper are: stat
8
The categories of this paper are: hep-ex
6
The categories of this paper are: astro-ph
17
The categories of this paper are: q-fin
28
The categories of this paper are: alg-geom
33
The categories of this paper are: plasm-ph
29
The categories of this paper are: funct-an
11
The categories of this paper are: hep-lat
37
The categories of this paper are: supr-con
20
The categories of this paper are: acc-phys
25
The categories of this paper are: patt-sol