both fat tails and volatility dependence, these features can show up in the time series of asset returns. In this mode, the …

temporal evolution of the volatility of the Ibovespa. The knowledge of these occurences could help to find the convenient …

This paper proposes a new way of modeling and forecasting intraday returns. We decompose the volatility of high … product of daily, diurnal and stochastic intraday volatility components. This model is applied to a comprehensive sample …

"Despite the common view that exchange rate volatility will inevitably depress the volume of international trade by … empirically investigate the impact of exchange rate volatility on real international trade flows, but with a much broader … perspective and an improved measure of volatility. Our 18-country data set consists of bilateral real exports for the period 1980 …

level of volatility which varies over time. This paper examines if social interaction and herd behaviour, based on the … volatility and it quickly reaches a higher state (at which point increasing the randomness of the network has little effect …). Assuming that all social networks have small world characteristics then there is an inherent level of volatility in …

The main problem in the combination of volatility forecasts is that the volatility cannot be directly observed and …. A common approach is to use the squared returns but these offer a noisy measure of the volatility and, in many settings … by referring to the concept of realized volatility even if, at very high frequencies, micro-structure market frictions …