The United States' official poverty measure defines the poor in terms of a family's actual, yearly cash income relative to an estimate of the income needed to sustain a minimally acceptable standard of living. An alternative definition, designed to reflect a family's ability to achieve economic...

Policy to reduce poverty has often foundered on the issue of work incentives. The issue is a manifestation of the traditional conflict between equity and efficiency; the redistribution of income from higher to lower income people typically leads to reduced incentives for both groups to supply...