This paper estimates income gap ratios and Gini coefficients of poor Americans and combines them with official U.S. government poverty statistics to create a new time series of Sen indices of poverty. The effects of growth and other determinants of aggregate poverty are investigated over the...

Dardanoni's (1993) results on mobility and social welfare in a simple Markov model of “pure” mobility are extended to rank distributions characterized by unequal growth. Partial orders of welfare states are derived and shown to be equivalent to rankings of generalized permanent income Lorenz...