We suggest a new method dealing with the problem of endogeneity of the threshold variable in single regression threshold models and seemingly unrelated systems of them based on copula theory. This theory enables us to relax the assumption that the threshold variable is normally distributed and...

This paper suggests an affine term structure model of real interest rates to predict changes in real consumption growth. The model is estimated, jointly, by real interest rates and consumption data, and it is found to be consistent with the consumption smoothing hypothesis. The paper shows that...

This paper presents a new stochastic volatility model which allows for persistent shifts in volatility of stock market returns, referred to as structural breaks. These shifts are endogenously driven by large return shocks (innovations), reflecting large pieces of market news. These shocks are...