distributions retain their shape, but not their localization (mean ) or size (volatility ) as the classical Gaussian distributions … time T and frequency . For example, the volatility of the lognormal financial price distribution, derived from the … generally, the volatility of the price return distributions of Calvet and Fisher's (2002) Multifractal Model for Asset Returns …

The scaling properties encompass in a simple analysis many of the volatility characteristics of financial markets. That …

importance of the market movements. These indices are based on the price volatility and are computed by integrating mapped asset …

financial instruments in the portfolio and on the volatility of those returns.This task is relatively simple if the correlations … and volatilities do not change over time.But in reality both volatility and stock market indexes’ correlations do change …