We have investigated the tail distribution of the daily fluctuations in 202 different indices in the stock markets of 59 countries for the time span of the last 20 years. Power law, log-normal, Weibull, exponential and power law with exponential cutoff distributions are considered as possible...

We report the results of a study of the spectral properties of the correlation matrix of price fluctuations in the stock prices in an emerging market (Istanbul Stock Exchange Market) by using random matrix theory. Although properties such as the distributions of correlation matrix elements,...

We report the results of an investigation of the properties of the networks formed by the cross-correlations of the daily and weekly index changes of 143 stock market indices from 59 different countries. Analysis of the asset graphs, minimum spanning trees (MST) and planar maximally filtered...