Mantegna, Rosario N; Palágyi, Zoltán; Stanley, H. Eugene - In: Physica A: Statistical Mechanics and its Applications 274 (1999) 1, pp. 216-221
We discuss some apparently “universal” aspects observed in the empirical analysis of stock price dynamics in financial markets. Specifically we consider (i) the empirical behavior of the return probability density function and (ii) the content of economic information in financial time series.