This article uses culture of poverty and rational choice theories of p
overty to explain how quickly nonelderly household heads leave public
housing. Data from the Panel Study of Income Dynamics serve as the bas
is for the analysis. Although a significant proportion of all househol
d heads have public housing spells lasting five or more years, the maj
ority have spells lasting less than five years. The availability of ot
her housing options has a strong impact on how quickly individuals mov
e out of public housing. Family structure and human capital play a mor
e modest role. To the extent that one's childhood experiences affect t
he likelihood of exiting public housing, they appear to do so mostly t
hrough their effect on the acquisition of human capital. Finally, the
evidence presented is inconsistent with the notion that public housing
is a trap from which it is more difficult to escape the longer one li
ves in it.