Option prices seem to behave in ways inconsistent with the Black-Scholes model. Implied volatility varies with the … strike price in a parabolic shape that is often called the volatility 'smile.' My objective in this paper is to identify … promising in explaining the volatility smile. Applying this to the ERM data, I find that the probability of a devaluation in the …

This paper examines co-movements and volatility spillovers in the returns of the euro, the British pound, the Swiss … franc and the Japanese yen vis-à-vis the US dollar before and after the introduction of the euro. Based on dynamic … significant co-movements and volatility spillovers across the four exchange returns, but their extend is, on average, lower in the …