title: On the persistence of U.S. migration rates in the 20th century.
abstract: The persistence or inertia of net migration rates in the United States during the twentieth century is measured.  A set of basic migration data for states, counties, and state economic areas is described, and manipulations of these data are discussed.  "The manipulated data are [then] analyzed graphically and by regression.  The report concludes with a few remarks on the use of demographic extrapolations for planning and policy purposes."
authors.forename: D B
authors.initials: DB
authors.lastname: Pittenger
mesh_terms: D000569:Americas; D003710:Demography; D019049:Developed Countries; D004641:Emigration and Immigration; D009656:North America; D011153:Population; D011157:Population Dynamics; D012106:Research; D013223:Statistics as Topic; D014481:United States
keywords: Americas; Data Analysis; Demographic Analysis; Demographic Factors; Developed Countries; Estimation Technics; Migration; Migration, Internal--changes; North America; Northern America; Population; Population Dynamics; Research Methodology; United States