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 …

the pricing of European-style foreign currency options and for the volatility strike structure implicit in these contracts … is devoloped. The curvature of the volatility strike structure is explained by focusing attention on the expected … characteristic convex shape of volatility strike structures documented in the empirical literature. A volatility-based test for …