Abstract
We apply the formalism of the continuous-time random walk to the study of financial data. The entire distribution of prices can be obtained once two auxiliary densities are known. These are the probability densities for the pausing time between successive jumps and the corresponding probability density for the magnitude of a jump. We have applied the formalism to data on the U.S. dollar–deutsche mark future exchange, finding good agreement between theory and the observed data.
- Received 22 October 2002
DOI:https://doi.org/10.1103/PhysRevE.67.021112
©2003 American Physical Society