Longitudinal data from the Panel Study of Income Dynamics are used to
study residential mobility before and after entry into widowhood. An e
vent-history analysis is employed to test the Litwak and Longino propo
sal that entrance into widowhood stimulates residential mobility. Wido
whood is a triggering mechanism, with the peak of moving occurring in
the Ist year of widowhood, preceded by a gradual rise in the probabili
ty of a move and followed by a gradual decline in that probability. Ev
entually, the majority of widowed persons move, but after 20 years of
widowhood 40% are estimated to still be in the home they occupied when
they were widowed. Age at widowhood, health, duration of residence, e
ducational attainment, excess space, income, race, homeownership, and
single family residence affect holding on and letting go. Moving durin
g widowhood is made more complex by changes overtime in the way age at
widowhood, income, and tenure status influence moving.