2 avril 2010
Glenn V. Fuguitt et al., « County-Specific Net Migration Estimates, 1980-1990 [United States] », Inter-university Consortium for Political and Social Research, ID : 10.3886/ICPSR26761.v1
This data collection represents a set of United States county net migration estimates by age and sex for the 1980-1990 decade, and is part of a series of estimates done for each decade since 1950 (1950-1970: see NET MIGRATION OF THE POPULATION BY AGE, SEX, AND RACE, 1950-1970 [ICPSR 8493]; 1970-1980: see NET MIGRATION OF THE POPULATION OF THE UNITED STATES BY AGE, RACE, AND SEX, 1970-1980 [ICPSR 8697]; 1990-2000: see COUNTY-SPECIFIC NET MIGRATION BY FIVE-YEAR AGE GROUPS, HISPANIC ORIGIN, RACE, AND SEX, 1990-2000 [ICPSR 4171]). Net migration, the difference between the number of people moving into an area and the number moving out over a period, is measured here, and in all the other sets of estimates in the series, by the residual method. That is, net migration is equal to the population change over the period minus the natural increase (births -- deaths). Full details on how natural increase is estimated for each county, as well as other details of the data collection, are described in the codebook.