登入選單

返回Google圖書搜尋

Statistical Surveillance of Volatility Forecasting Models

Vasyl GolosnoyIryna OkhrinWolfgang Schmid

出版	SSRN, 2011
URL	http://books.google.com.hk/books?id=l-XdzwEACAAJ&hl=&source=gbs_api

註釋

This paper elaborates sequential procedures for monitoring the validity of a volatility model. A state space representation describes dynamics of daily integrated volatility. The observation equation relates the integrated volatility to its measures such as the realized volatility or bipower variation. On-line control procedures, based on volatility forecasting errors, allow us to decide whether the chosen representation remains correctly specified. A signal indicates that the assumed volatility model may no longer be valid. The performance of our approach is analyzed within a Monte Carlo simulation study and illustrated in an empirical application for selected US stocks.