“…I am grateful as well to Gunnar Andersson and Gerda Neyer for inviting me to contribute to this volume in Jan's honor, and also to them for their help and ideas. Goode, 1993;Bumpass, Raley, and Sweet, 1995;Goldscheider et al, 2000. 2. van Amersfoort, 1999, accuses European demographic scholarship of having an "ostrich" mentality, ignoring the phenomenon of immigration that is unfolding all around. However, in the 1990s, European population literature began to draw special attention to the labor contributions of international migration versus the competition immigrants could pose to longstanding residents and citizens, and later the potential costs and gains of raising their children.…”