Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the Superdistribution of Digital Goods   Business models involving buyers of digital goods in the distribution process
are called superdistribution schemes. We review the state-of-the art of
research and application of superdistribution and propose systematic approach
to market mechanisms using super-distribution and technical system
architectures supporting it. The limiting conditions on such markets are of
economic, legal, technical, and psychological nature.

3
The categories of this paper are: physics
26
The categories of this paper are: bayes-an
23
The categories of this paper are: solv-int
30
The categories of this paper are: q-alg
27
The categories of this paper are: comp-gas
12
The categories of this paper are: nucl-th
21
The categories of this paper are: adap-org
25
The categories of this paper are: patt-sol
0
The categories of this paper are: hep-ph
18
The categories of this paper are: econ
11
The categories of this paper are: hep-lat
13
The categories of this paper are: quant-ph
4
The categories of this paper are: cond-mat
29
The categories of this paper are: funct-an
31
The categories of this paper are: ao-sci
32
The categories of this paper are: atom-ph