"We analyze the volatility surface vs. moneyness and time to expiration implied by MIBO options written on the MIB30, the most important Italian stock index. We specify and fit a number of models of the implied volatility surface and find that it has a rich and interesting structure that...

Following Shimko (1993), a large amount of research has evolved around the problem of extracting risk neutral densities from options prices by interpolating the Black-Scholes implied volatility smile. Some of the methods recently proposed use variants of the cubic spline. These methods have the...

We use a game theoretical framework to analyze the intraday behavior of banks with respect to settlement of interbank claims in a real time gross settlement setting. We find that the game played by banks depends upon the intraday credit policy of the central bank and that it encompasses two...

The paper develops a simple stochastic new open macroeconomic model in which pricesetting firms' choice between producer currency pricing and local currency pricing is endogenous. We show that, in equilibrium, firms will denominate their export price contracts in the currency of the country with...