This paper examines the effect of a cohort's size and position in the
demographic cycle on the timing of migration during the young, labor f
orce years. Previous literature has shown that demographic cycles are
highly influential in determining the level of migration: migration pr
opensities of young adults tend to be lower for large cohorts due to c
ompetitive labor markets and depressed job opportunities. This study a
rgues that demographic cycles can also influence the timing of migrati
on, and proposes a methodology that separates the examination of migra
tion levels from that of migration timing. Analyses using Current Popu
lation Survey data show that members of small cohorts tend to move ear
lier on in their life cycle than members of large cohorts. Reconstruct
ed age-schedules of migration for large and small cohorts support the
existence of ''delayed mobility'' among baby boomers.