We combine recent developments on extracting jumps from high frequency stock index data with the literature on option pricing with time varying volatility to model S&P 500 index returns from 2005. We compare the fit of several GARCH models, with and without jumps, from the historical return...

Understanding the behaviour of the equity yield and its relation to the bond yield is important for portfolio managers and those engaged in modelling the interaction between asset classes. During the mid-1900s, the equity yield-which was previously greater than the bond yield-declined, while the...