title: A regional analysis of illegal aliens.
abstract: "This paper combines inferences about the unknown population of illegal aliens with apprehension data and economic indicators to estimate the separate effects of enforcement activity and economic changes on the stock of illegal aliens in the United States.  This method offers a substantial improvement over previous empirical estimates based solely on apprehension data."
mesh_terms: D000569:Americas; D003710:Demography; D019049:Developed Countries; D004467:Economics; D004641:Emigration and Immigration; D005843:Geography; D009656:North America; D011153:Population; D011157:Population Dynamics; D012106:Research; D012959:Socioeconomic Factors; D013223:Statistics as Topic; D014171:Transients and Migrants; D014481:United States
keywords: Americas; Demographic Factors; Developed Countries; Economic Development; Estimation Technics; Geographic Factors; Illegal Migrants; International Migration; Migrants; Migration; North America; Northern America; Population; Population Dynamics; Research Methodology; Socioeconomic Factors; United States