This study addresses some modelling questions related to the possibility of structural change in models with nonstationary variables. Focusing on cointegration issues, some methodological aspects are discussed, attempting to integrate coherently the several steps of the modelling strategy. These...

One of the main consequences of the 'cointegration revolution' on the domain of the direct tests of the rational expectations hypothesis (REH) was the substitution of the 'restricted cointegration test' (RCT) for the 'unbiasedness test'. However, the results of a Monte Carlo study show that a...