This work is devoted to the study of the relation between intermittence and scale invariance. We find the conditions that a function in which both effects are present must satisfy, and we analyze the relation with characteristic scales. We present an efficient method that detects characteristic...

This work is devoted to the study of long correlations and other statistical properties of Latin-American market indices. We concluded that the behavior of the return is compatible with a slow convergence to a Gaussian distribution. We also detected long-range correlations in the absolute value...