This article analyses population weighted growth for the periods 1989 1993 and 1995-1999 in EU15 covering the period of time in which Delors I and II packages were operational. Two important results were found, first, the existence of a polarized growth either at the lowest or highest income levels that proves the existence of a twin-peak structure in the growth process and second a better performance of objective 1 regions than non-objective 1 regions during both periods of time, showing a tendency of objective 1 regions to catch up with the average EU15 income.