This paper reviews the relationship between health and inadequate empl
oyment, especially unemployment. Poor physical or mental health can le
ad, via poor work performance, to job loss; however, studies that cont
rol for such selection effects are still scarce except for a few healt
h outcomes. For example, aggregate-level studies typically find a posi
tive association between unemployment and suicide rates over time. At
the individual level of analysis, panel surveys of laid-off workers te
nd to find increased psychiatric problems such as depression and subst
ance abuse. Few studies have evaluated interventions to prevent or red
uce the adverse health effects of job loss. There have been even fewer
studies of the health effects of other types of inadequate employment
such as the increasingly prevalent forms of underemployment.