The group collaborates with comparable research groups in Nijmegen and Groningen. Internationally, the group is involved in a team of approx. 30 scholars working together in the CCC-project. Further collaboration exists with the depts. of sociology UC at Irvine, Penn state and Princeton. Students go there for 3-6 months. On the other hand, the group receives regularly visiting fellows (students and faculty) from countries such as Spain, Hungary, Italy, U.S. Australia, Brazil, Sweden, Germany, Switzerland, U.K., and Indonesia.