Trends in inflation-unemployment relationship before and after accession to EU

First of all, we present synthetically a few empirical results regarding changes in the inflation-unemployment relationship in West European countries during last three decades and in few Central and Eastern countries during the last fifteen years. Then, coming from a general standard model for estimating natural unemployment (Ball and Mankiw, 2002) and using four smoothing filters, we estimate some possible trajectories for this relationship and for the potential GDP in Romania.