Černý, Michal - In: Acta Oeconomica Pragensia 2008 (2008) 4, pp. 12-21
Estimation of volatility of financial time series plays a crucial role in pricing derivatives. Volatility is often … estimated from historical data; however, it is well known that volatility varies in time. We propose a method to choose a … suitable length of historical data to estimate contemporary volatility. The method is based on adaptation of a procedure used …
