Invited Session on common regional and urban problems in Europe and in the Arab speaking Mediterranean countries. To this purpose you could send (within 5^thMay 2013) some (2-3) abstracts of papers by European and Arab researchers to be presented at the Palermo ERSA Congress to Professor Lidia Diappi (diappi@polimi.it), Politechnic of Milan, Executive Representative of AISRe International Office, who will act as session coordinator.