Using data from three waves of the Children of the National Longitudin
al Surveys of Youth data set (1986, 1988, 1990), we examine the dynami
c relationship between children's family histories of poverty and thei
r developmental trajectories of mental health. Children who were poor
in 1986 or who had prior histories of poverty had higher levels of dep
ression and antisocial behavior in that year. Furthermore, subsequent
poverty histories were also related to children's mental health trajec
tories. The number of years that children were poor between 1986 and 1
990 correlates significantly with changes in children's antisocial beh
avior during those years. Finally, rates of increase in antisocial beh
avior were substantially higher for children with histories of persist
ent poverty during those years than for transiently poor or nonpoor ch
ildren. These results demonstrate the accelerating behavioral disadvan
tages faced by persistently poor children.