| Georg Simmel Award of the International Network of Social Network Analysis (May 2004) |
| Officer in the Order of Oranje-Nassau (decorated in 2002) |
| Member of the European Academy of Sociology |
| 1960: | Eindexamen Gymnasium B (Ignatius College, Amsterdam) |
| 1965: | Candidaatsexamen political and social sciences (University of Amsterdam) |
| 1968: | Doctoraalexamen political science (University of Amsterdam) |
| 1977: | Cum laude doctorate (PhD) in the social sciences (University of Amsterdam). Title dissertation: "Third World Group Formation in the United Nations. A Methodological Analysis"; promotores: Prof.dr. P.R. Baehr and Prof.dr. R.J. Mokken. |