When observed over a large panel, measures of risk (such as realized volatilities) usually exhibit a secular trend around which individual risks cluster. In this article we propose a vector Multiplicative Error Model achieving a decomposition of each risk measure into a common systematic and an...

Many ways exist to measure and model financial asset volatility. In principle, as the frequency of the data increases, the quality of forecasts should improve. Yet, there is no consensus about a "true" or "best" measure of volatility. In this paper we propose to jointly consider absolute daily...

Italian Abstract: Il lavoro effettua una verifica della capacità dell'oro di costituire un'attività rifugio (safe haven asset) nelle fasi di forte tensione sui mercati finanziari. Sotto questo aspetto, l'oro viene confrontato con altri potenziali safe haven assets (titoli sovrani tedeschi e...