was born in Munich in 1947. He is Professor of Social Psychology at the Tel-Aviv University, and a co-founder of the Centre for Peace Studies "Tami Steinmetz.” He is also the first president of the Institute for Diplomacy and Regional Cooperation, which was established jointly by the Peres Centre for Peace and Tel Aviv University. He has written extensively in scholarly international journals of social psychology. His major areas of scientific interest are: cooperation between individuals and groups, inter-group relations and social conflict, social identity and prejudice, and massive social traumas and their impact on individuals and families.