In an affine term structure framework we propose a discrete time stochastic volatility model. We derive the characteristic function of the log swap rate under swap measure. Having the characteristic function, we employ the Fourier cosine (COS) technique to price swaptions. Using data on tweleve...

In this paper we investigate the dynamics of Hong Kong cap-floor volatilities and compare their dynamics with the US cap-floor volatilities. We use linear and non-linear factor models and VAR's. The results show that the first principal components, both linear and non-linear, do a very good job...