1. Netherlands Interdisciplinary Demographic Institute (NIDI) P.O. Box 11650 NL‐2502 AR The Hague The Netherlands
2. Tilburg UniversityTilburg School of Economics and Management (TISEM) and CentER P.O. Box 90153 NL‐5000 LE Tilburg The Netherlands
3. Tilburg UniversityDepartment of Sociology P.O. Box 90153 NL‐5000 LE Tilburg The Netherlands