Volatility of the financial time series belongs to the crucial estimated parameters in finance (e.g. in risk management, derivative pricing). It is well known, that volatility varies in time, so that new approaches of volatility modeling have appeared. In this paper two models of the conditional...

The article deals with a typical phenomenon of financial time series - volatility. These time series usually embody intermittent periods of relative "calm" and quite high variability. A volatility modelling of time series is made with the help of special econometric volatility models which...

The article provides a basic description and taxonomy of sovereign wealth funds, rapidly gaining importance in the international monetary and financial systems. SFWs are pools of assets owned and managed directly or indirectly by governments to achieve specific objectives. Tentative estimates of...