1. Shanghai University of Finance and Economics, Shanghai, China. e-mail: xgq.natalie@gmail.com
2. Faculty of Management, Trier University, Universitaetsring 15a, DM-Gebäude, Postfach 28, Trier 54296, Germany
3. Montpellier Business School, Montpellier, France. e-mail: f.lasch@montpellier-BS.com
4. Montpellier Business School, Montpellier, France. e-mail: f.robert@montpellier-BS.com
5. Rotterdam, The Netherlands. e-mail: thurik@ese.eur.nl