The finite-sample properties of threshold autoregressive cointegration tests are examined in the presence of structural changes in cointegrating relationships. It is shown that spurious asymmetric cointegration may be exhibited when there is a change in the degree of cointegration between two...

The properties of the 'change in persistence'' tests developed by Leybourne et al. (2003) are considered in the presence of structural change under the null. Interestingly, it is found that while breaks in drift result in undersizing, breaks in level lead to severe oversizing. The implications...

The power of the recently proposed Escribano–Pfann (1998) model of asymmetry is examined via Monte Carlo simulation. As found previously for an alternative asymmetric model, the power of this model is seen to be low.