This paper analyses issues related to weak exogeneity in a financial point process. We extend the Hausman test of weak exogeneity in a time series model and propose three cases in which weak exogeneity conditions will break down. The simulation study suggested that a failure of the exogeneity...

This paper proposes a class of partial cointegrated models allowing for structural breaks in the deterministic terms. Moving-average representations of the models are given. It is then shown that, under the assumption of martingale difference innovations, the limit distributions of partial...

Determinants of economic growth in Ghana are analysed using restricted vector autoregressive (VAR) model for the period 1975-2013. The empirical results reveal that GDP per capita in long-run is driven by export, oil and mineral rents while government consumption retard economic growth....