作者:Abel, GJ (Abel, Guy J.)[ 1,2 ] ; Cohen, JE (Cohen, Joel E.)[ 3,4,5,6,7 ]

 

卷: 6

文獻號: 82

DOI: 10.1038/s41597-019-0089-3

出版年: JUN 17 2019

文獻類型:Article; Data Paper

 

出版商NATURE PUBLISHING GROUP, MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND

ISSN: eISSN: 2052-4463

研究領域Science & Technology - Other Topics

 

 

Data on stocks and flows of international migration are necessary to understand migrant patterns and trends and to monitor and evaluate migration-relevant international development agendas. Many countries do not publish data on bilateral migration flows. At least six methods have been proposed recently to estimate bilateral migration flows between all origin-destination country pairs based on migrant stock data published by the World Bank and United Nations. We apply each of these methods to the latest available stock data to provide six estimates of five-year bilateral migration flows between 1990 and 2015. To assess the resulting estimates, we correlate estimates of six migration measures from each method with equivalent reported data where possible. Such systematic efforts at validation have largely been neglected thus far. We show that the correlation between the reported data and the estimates varies widely among different migration measures, over space, and over time. We find that the two methods using a closed demographic accounting approach perform consistently better than the four other estimation approaches.