This is a simulation-based warning note for practitioners who use the M GLS MGLS unit root tests in the context of structural change using different selection lag length criteria. With T=100 T=100 , we find severe oversize problems when using some criteria, while other criteria produce an...

We analyze public debt sustainability in Serbia between 2004Q3 and 2014Q3. The results of our analysis are: i) public debt to GDP ratio is on unsustainable path, according to the results of unit root tests; ii) the response of primary fiscal balance to public debt accumulation is insufficient to...