Examines how 1990 state elderly populations have been affected by "new elderly births" (a state's population, ages 55-59 in 1985, which survived to ages 60-64 in 1990) as well as by migration components. During the 1985-90 period, elderly births exerted a greater impact than migration on elderly gains and demographic composition for all…

Analyzes census tract data to assess residential mobility trends. Net immigration of professionals is found to be more likely in tracts with high proportions of retired households and, especially in tracts close to the cities' central business districts, professional immigration is associated with outmigration of retired households. (Author)