title: Functional forms and the relevance of contiguous migration in the study of migration and employment growth.
abstract: The authors examine internal migration in the United States and emphasize the importance of decomposing total migration into contiguous and noncontiguous migration flows when analyzing employment change.  "In this study, a simultaneous-equation model containing two equations, one for migration and the other for employment growth, has been specified in a general form and estimated by the 2SLS method for total, contiguous and noncontiguous migration flows.  Results obtained from the use of 1970 Census data show that noncontiguous migration behaves significantly [differently] from contiguous migration, and that noncontiguous migration, rather than total migration, should be used for the study of factors affecting interstate migration.  Results also indicate that the log-linear functional form commonly used in empirical studies cannot be accepted statistically."
mesh_terms: D000569:Americas; D003710:Demography; D019049:Developed Countries; D003906:Developing Countries; D004467:Economics; D004641:Emigration and Immigration; D004651:Employment; D005069:Evaluation Studies as Topic; D005843:Geography; D006280:Health Workforce; D008722:Methods; D008962:Models, Theoretical; D009656:North America; D011153:Population; D011157:Population Dynamics; D012106:Research; D012923:Social Class; D012959:Socioeconomic Factors; D013223:Statistics as Topic; D014481:United States
keywords: Americas; Comparative Studies; Demographic Analysis; Demographic Factors; Developed Countries; Developing Countries; Economic Conditions--changes; Economic Factors; Employment Status; Estimation Technics; Evaluation; Geographic Factors; Human Resources; Labor Force--changes; Macroeconomic Factors; Methodological Studies; Migration; Migration, Internal; Models, Theoretical; North America; Northern America; Population; Population Dynamics; Research Methodology; Research Report; Socioeconomic Factors; Socioeconomic Status; United States