1. Faculty of Science, Department of Earth and Atmospheric Sciences; University of Alberta; Edmonton Alberta Canada
2. Center for Development Research (ZEF); University of Bonn; Bonn Germany
3. Department of Structural Change; Leibniz Institute of Agricultural Development in Transition Economies (IAMO); Halle (Saale) Germany
4. Department of Law and Economics; Martin Luther University of Halle-Wittenberg; Halle (Saale) Germany
5. Department of Sociology; University of Antwerp; Antwerp Belgium