Corsi, Fulvio; Zumbach, Gilles; Müller, Ulrich; … - EconWPA - 2004
Estimates of daily volatility are investigated. Realized volatility can be computed from returns observed over time … intervals of different sizes. For simple statistical reasons, volatility estimators based on high-frequency returns have been … volatility bias. On the basis of a simple theoretical model for foreign exchange data, the incoherent term can be filtered away …