Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Comparison of gain-loss asymmetry behavior for stocks and indexes   Investment horizon approach has been used to analyze indexes of Polish stock
market.Optimal time horizon for each return value is evaluated by fitting
appropriate function form of the distribution. Strong asymmetry of gain-loss
curves is observed for WIG index, whereas gain and loss curves look similar for
WIG20 and for most of individual companies stocks. The gain-loss asymmetry for
these data, measured by the coefficient, that we postulated before
\cite{karpio}, has opposite sign to this for WIG index.

4
The categories of this paper are: cond-mat
21
The categories of this paper are: adap-org
31
The categories of this paper are: ao-sci
33
The categories of this paper are: plasm-ph
10
The categories of this paper are: q-bio
29
The categories of this paper are: funct-an
5
The categories of this paper are: gr-qc
8
The categories of this paper are: hep-ex
35
The categories of this paper are: mtrl-th
27
The categories of this paper are: comp-gas
9
The categories of this paper are: nlin
32
The categories of this paper are: atom-ph
28
The categories of this paper are: alg-geom
14
The categories of this paper are: math-ph
12
The categories of this paper are: nucl-th
2
The categories of this paper are: math