Martina Maletzky is a researcher at the Ruhr-University Bochum and coordinates the German-Mexican Research project on personnel mobility between Germany and Mexico. Her research topics and interests are work and organisation in international organisations, cross-border mobility, intercultural interaction in organisations. She has published several articles on personnel mobility and expatriates.Ludger Pries studied Sociology and Social Science at the Universities of Bochum, Erlangen-Nürnberg and Puebla/Mexiko and holds a Chair for Sociology at Ruhr-Universität Bochum. He was a speaker in the section 'Migration and ethnic minorities' and in the organization committee of the 36th Congress of the German Sociological Association. He is a member of the Expert Council of German Foundations on Integration and Migration. His main fields of research are sociology of organisations, work and labour regulation, migration in international comparison, transnationalisation, transnational migration and processes of social incorporation. He has written 15 books, 70 articles in scientific journals and edited 20 books (in German, English and Spanish).Christel Adick is Professor at Ruhr-University of Bochum, Germany.Bruno Gandlgruber is Professor at UAM University, Mexico, and Visiting Professor at Ruhr-University of Bochum, Germany.

• 1. Cross-Border Mobility: Not Only Goods and Information, Also People 2. Cross-border Staff Mobility in German and Mexican Profit Organizations 3. Staff Mobility in Non-Profit-Organizations in Comparison 4. Conclusions