Rainer K. Silbereisen is Research Professor of Developmental Psychology and Director of the Center for Applied Developmental Science at the University of Jena, Germany. He is Past-President of the International Union of Psychological Science. Peter F. Titzmann is Associate Professor at the Jacobs Center for Productive Youth Development, University of ZÃ1/4rich, Switzerland. Yossi Shavit is Weinberg Professor of Sociology at Tel Aviv University. He is the President of the Israeli Sociological Society and Director of Educational Policy Program at the Taub Center in Jerusalem, Israel.