This study analyzes determinants of entry and exit transitions in the Aid to Families with Dependent Children program using data from the Panel Study of Income Dynamics. The principal findings are that state-controlled policy parameters such as the AFDC "guarantee" (the payment received when...

This paper presents new measures of the implicit marginal tax rate on earnings in the Aid to Families with Dependent Children (AFDC) program. Previous measures suffer from two types of bias. First, they do not adequately control for nonlinear relationships between AFDC payments and earnings....

Under phased retirement, an older worker remains with his or her employer while gradually reducing work hours and effort. Although older workers often express an interest in phased retirement, actual occurrences are evidently rare. A possible explanation is that employers limit opportunities for...

This paper considers the problem of measuring segregation when groups form a hierarchy whereby some groups have greater economic status than others. While existing measures of segregation address the case where people are unequally distributed across groups with the same economic status, concern...