Deaton, Angus; Paxson, Christina - National Bureau of Economic Research (NBER) - 1993
given cohort of people born at the same time, inequality in both consumption and income will grow with age. At any given … inequality over time within a given age cohort, it has no immediate implications for the behavior of inequality in the economy as … a whole, and is consistent with constant aggregate inequality over time. Cohort data are constructed from 11 years of …