1. Research Area ‘Poverty Reduction, Equity and Development’, Kiel Institute for the World Economy, Kiel, Germany; Department of Political Science, Kiel University, Kiel, Germany
2. Department of Communication Science and Media Research, University of Zurich, Zurich, Switzerland
3. Research Area ‘Poverty Reduction, Equity and Development’, Kiel Institute for the World Economy, Kiel, Germany; Institute of Labor Economics, Bonn, Germany