Berlin 2005 – scientific programme
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AKSOE: Physik sozio-ökonomischer Systeme
AKSOE 8: Poster Session
AKSOE 8.13: Poster
Monday, March 7, 2005, 14:00–15:30, Poster TU E
Market leader detection with Langevin equation — •Thorsten Schneider, Andreas Nawroth, and Joachim Peinke — Carl-von-Ossietzky-Universität Oldenburg
We present a stochastic analysis of different data sets from the NYSE that consist of all trades from August 2001 to January 2004. The smallest set comprises 7 · 105 quotes. We regard on the one hand the price timeseries and on the other hand the resulting increment timeseries. Directly from these timeseries which are neither continuous nor equidistant the drift and diffusion coefficients of the corresponding Langevin equation are extracted. We use this equation to find out dependencies between different companies for example to determine a market leader and to detect situations where the statistic behavior of an asset changes.