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...

Ignoring items with large price changes may enhance the informational content of a price index. As an application of the metrically trimmed mean (Kim, 1992) we suggest to discard the individual price changes that deviate the most from the median. Focusing on outliers increases the efficiency...

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 present paper offers a careful description of empirical identification of possible multiple changes in regime. We apply recently developed tools designed to select between regime-switching models among a broad class of linear and nonlinear regression models and provide a discussion of the...