volatility. The research also examines the impact of powerful foreign capital markets on the Greek Stock Exchange market, the … seasonality returns (Day-of-the-Week effect) and the volatility structure. Design/methodology/approach - The analysis of data is …-GARCH model demonstrate that the debt crisis and, therefore, its consequences increase the FTSE / ASE 20 index volatility and the …

of volatility risk in stock and index returns, where we characterize volatility risk by the extent to which forecasting … errors in realized volatility are substantive. Even though returns standardized by ex post quadratic variation measures are … of returns. Explicitly modeling this volatility risk is fundamental. We propose a dually asymmetric realized volatility …

on some high frequency basis has spurred the research in the field of volatility modeling and forecasting into new … directions. First, the realized variance is a much better estimate of the latent volatility than the sum of the weighted daily … squared returns. As such it is better suited for comparing the out-of-sample performances of competing volatility models …

This paper focuses on the extraction of volatility of financial returns. The volatility process is modeled as a … the volatility is not observable, the logarithm of the daily high-low range is employed as its proxy. The estimation of … parameters and volatility extraction are performed using a modified version of the Kalman filter which takes into account the …

We analyse the decline in output volatility in Germany. A lower level of variance in an autoregressive model of output … error term variance (reduced impulses). In Germany the decline output volatility is due to a decline in the persistence of … sudden break. The evolution of Germany's short-term real interest rate volatility coincides with the change of the …

Stylized facts suggest that output volatility in OECD countries has declined in recent years. However, the causes and … structural breaks in the dynamics and the volatility of the real output process in Germany can be detected. We report evidence … that output volatility has declined in Germany. Yet, this decline in output volatility is not as clear-cut as it is in the …

This paper provides empirical evidence that combinations of option implied and time series volatility forecasts that … application is for volatility forecasts of the Mexican Peso-US Dollar exchange rate, where realized volatility calculated using … intra-day data is used as a proxy for the (latent) daily volatility. …