1 Joachim von Braun is president of the Pontifical Academy of Sciences, Vatican City, and is Professor for Economic and Technological Change, University of Bonn Center for Development Research, Bonn, Germany. jvonbraun@uni-bonn.de.
2 Stefano Zamagni is president of the Pontifical Academy of Social Sciences, Vatican City; professor of Economics at the Johns Hopkins University School of International Studies, Bologna; and professor of Political Economics, Università di Bologna, Bologna, Italy. stefano.zamagni@unibo.it.
3 Marcelo Sánchez Sorondo is Bishop Chancellor of the Pontifical Academies of Sciences and of Social Science, Vatican City. pas@pas.va.