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 …

exemplifies how heterogeneity concerning the volatility of two stochastic processes may lead to chaotic motion; the second is a …

This study examines the statistical properties of volatility. Fractal dimension, probability distribution and two …-point volatility correlation are used to measure and compare volatility among six different markets for the 12-year period from Jan. 1 … different in their resistance to volatility : Tokyo has a higher ability to dissipate volatility. This phenomenon implies that …

Volatility plays an important role in the explanation of prices of securities and their derivatives as well as risk … problem of volatility should not be underestimated for the causes of lack of the making in the order book. The introduction of … not seem even so important. We test in this paper the conditional volatility of a certain number of securities considered …

, using a bivariate SWARCH model to show the dependence of the high and low volatility states of the IT.CAC on the NASDAQ-100 …, with no intermediate simultaneous high-low volatility states. …

and volatility of the Shanghai market were higher. The rates of returns in the two markets were approximately serially … uncorrelated and mutually uncorrelated. Volatility, as measured by the absolute change in the rate of return, has positive serially … correlations in both markets as expected, but the autoregressions are temporarily unstable. Most surprisingly the volatility …

modeling this market’s high volatility to prevent against crises.The strong linkage of the American and European New Technology …

from 1880 to 1996: The volatility of real commodity prices, defined as nominal commodity prices deflated by the …