Before revision: We perform time-dependent extended Tsallis statistics analysis on stock market indices  . Specifically, we evaluate the q-triplet for particular time periods of the market with the purpose of demonstrating the temporal dependence of the extended characteristics of the underlying market dynamics.
After revision: We perform non-linear analysis on stock market indices . Specifically, we evaluate the q-triplet for particular time periods of the market with the purpose of demonstrating the temporal dependence of the extended characteristics of the underlying market dynamics.