Assessing symmetry of financial returns series

Details Assessing symmetry of financial returns series Assessing symmetry of financial returns series

2007-01-16

arxiv.org/abs/physics/0701189v1

Physica A, Vol 383, Issue 1, Pgs 5-9, (2007) (updated version).

Physics

Data Analysis, Statistics and Probability

Econophysics paper. 6 pages 2 figures

Scientific paper

10.1016/j.physa.2007.04.122

Testing symmetry of a probability distribution is a common question arising from applications in several fields. Particularly, in the study of observables used in the analysis of stock market index variations, the question of symmetry has not been fully investigated by means of statistical procedures. In this work a distribution-free test statistic Tn for testing symmetry, derived by Einmahl and McKeague, based on the empirical likelihood approach, is used to address the study of symmetry of financial returns. The asymptotic points of the test statistic Tn are also calculated and a procedure for assessing symmetry for the analysis of the returns of stock market indices is presented.

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