The income of many people around the world has considerably increased due to the economic globalization of the last 50 years. However, these income gains are unevenly distributed. A study by Dr. Valentin Lang, junior professor of political economy at the University of Mannheim, and his co-author Marina M. Tavares of the International Monetary Fund shows that the top 10% of the national income distributions, in particular, have benefited from this development.