This article reconsiders the relationship between stock return volatility and trading volume. Based on the multi-factor stochastic volatility model for stock return, we suggest several specifications for the trading volume. This approach enables the unobservable information arrival to follow the...

The article suggests a simple but effective approach for estimating value-at-risk thresholds using range data, working with the filtered historical simulation. For this purpose, we consider asymmetric heterogeneous Autoregressive Moving Average (ARMA) model for log-range, which captures the...

We extend the range-based approach of Alizadeh et al. (2002) in order to deal with leverage and size effects and nonnormal conditional distribution in Stochastic Volatility (SV) models. We employ the Efficient Importance Sampling (EIS) method to estimate the range-based asymmetric SV models....