Economy – Quantitative Finance – Trading and Market Microstructure
Scientific paper
2008-01-19
Physica A 383 (2007) 43-48
Economy
Quantitative Finance
Trading and Market Microstructure
8 pages, 5 figures
Scientific paper
10.1016/j.physa.2007.04.086
In high frequency financial data not only returns but also waiting times between trades are random variables. In this work, we analyze the spectra of the waiting-time processes for tick-by-tick trades. The numerical problem, strictly related with the real inversion of Laplace transforms, is analyzed by using Tikhonov's regularization method. We also analyze these spectra by a rough method using a comb of Dirac's delta functions.
Politi Mauro
Scalas Enrico
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