Masoliver, Jaume, 1951-Montero Torralbo, MiquelWeiss, George H. (George Herbert), 1930-2011-07-072011-07-0720031063-651Xhttps://hdl.handle.net/2445/18803We 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. dollardeutsche mark future exchange, finding good agreement between theory and the observed data.10 p.application/pdfeng(c) American Physical Society, 2003Anàlisi de sèries temporalsEstadística financeraRutes aleatòries (Matemàtica)Time-series analysisFinancial statisticsRandom walks (Mathematics)info:eu-repo/semantics/article512390info:eu-repo/semantics/openAccess