The poor economic position of single-mother households is a result of
three factors: women's generally lower wages, lower economic support f
rom men, and a relatively great need for income. This paper examines t
he relative importance of the last two of these factors. Data from the
Luxembourg Income Study show that single-mother households in West Ge
rmany and the United States have high rates of poverty while their sit
uation in Sweden is considerably better. The remainder of the analysis
concentrates on the economic risks which would be faced by married pa
rents if they were to separate tomorrow, and on the insurance transfer
incomes provide against such risks. It is shown, first, that the cost
s of breaking one household into two are considerable, and that single
-mother households will be worse off economically, unless a substantia
l increase in family income takes place. Second, that the economic dep
endence of married mothers places many in a 'high risk' situation, whe
re they will lose a high proportion of their economic resources if the
support from a spouse disappears. Finally, the analysis shows that tr
ansfer income respresents a poor insurance against the risk resulting
from women's economic dependence.