Korean Won / New Taiwan $ exchange rate and tourist arrivals from Korea to Taiwan, as well as their associated volatility … and Korean tourist arrivals, to test whether alternative estimates of conditional volatility are sensitive to the long … memory in the conditional mean, and to examine asymmetry and leverage in volatility. The empirical results show that the …

their associated volatility. The sample period includes the Asian economic and financial crises in 1997, and part of the … whether alternative short and long run estimates of conditional volatility are sensitive to the approximate long memory in the … conditional mean, to examine asymmetry and leverage in volatility, and to examine the effects of temporal and spatial aggregation …

A wide variety of conditional and stochastic variance models has been used to estimate latent volatility (or risk). In … both the conditional and stochastic volatility literature, there has been some confusion between the definitions of … volatilities. Then we develop a new asymmetric volatility model, which takes account of small and large, and positive and negative …

The stochastic volatility model usually incorporates asymmetric effects by introducing the negative correlation between … the innovations in returns and volatility. In this paper, we propose a new asymmetric stochastic volatility model based on … returns and volatility. The new model is estimated by the efficient importance sampling method of Liesenfeld and Richard (2003 …