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This report from the UNECE Migration Work Session on October 18, 2012, presented by Paul Vickers of the Office for National Statistics (UK), discusses significant advancements in the collection and analysis of long-term total international migration data for the UK, covering the years 1991-2009. It outlines the Migration Statistics Improvement Programme (MSIP), its objectives, methodologies, and benefits, including improved national estimates and local authority immigration distributions. The session explores the integration of various administrative data sources and discusses future priorities in migration statistics.
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Building on the Migration Statistics Improvement Programme UNECE Migration Work Session 18 October 2012 Paul Vickers, Office for National Statistics, UK
Long-term Total International Migration to UK by Citizenship Group (1991 -2009)
MSIP Benefits
MSIP Objectives
LA immigration distributional improvements Current* Improved National Immigration Estimate (IPS) Distribute using 3 yr LFS average Region/UK country Intermediate Geography Use 3 yr IPS average Model-based distribution Distribute using administrative data Local Authority * For non-London LAs. A similar , but slightly more complex method is used for London LAs
Returning Migrants UK Born Non-UK Born Others Children 17-59 60+ Workers Students Migrant Workers Scan HESA (Higher Education) BIS/WG (Further Education) GP Patient Register: ‘Flag 4s’ Asylum Seekers (NASS) L2 2001 Census distribution LTM Worker distribution STM Student Distribution/ estimate LTM Student distribution Improved immigration distribution model IPS England and Wales Estimate (plus switcher adjustments) Residual (including short-term migrants Local Authority Immigration (LTIM) estimates
Comparison of percentage differences between the rolled-forward population estimates and the Census-based MYEs
Plausibility Ranges Administrative sources High estimate Explore and Combine Low estimate
Summary • Pre-MSIP • Now
Future Priorities • E-Borders • Internal migration • Emigration • Reconciliation of new methods with Census • National Statistics Status for short-term immigration estimates at local authority level • Exploiting the conceptual framework • Plausibility ranges for other age groups