presentation: three research questions
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INTERNAL MIGRATION BY ETHNICITY: A LONDON WARD-LEVEL STUDY John Stillwell School of Geography, University of Leeds, Leeds LS2 9JT Paper prepared for the UPTAP/BURISA Workshop on ‘Migration and Ethnicity’, City Hall, London, 26 September 2008. Presentation: three research questions. - PowerPoint PPT PresentationTRANSCRIPT
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INTERNAL MIGRATION BY INTERNAL MIGRATION BY ETHNICITY: ETHNICITY:
A LONDON WARD-LEVEL STUDYA LONDON WARD-LEVEL STUDY
John Stillwell John Stillwell School of Geography, University of School of Geography, University of
Leeds, Leeds LS2 9JTLeeds, Leeds LS2 9JT
Paper prepared for the UPTAP/BURISA Paper prepared for the UPTAP/BURISA Workshop on ‘Migration and Ethnicity’,Workshop on ‘Migration and Ethnicity’,City Hall, London, 26 September 2008City Hall, London, 26 September 2008
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Presentation: three research questionsPresentation: three research questions
• How do migration propensities vary between ethnic groups in London and how does London compare with Britain as a whole?
• What spatial patterns of ethnic net migration are evident in London at the ward level and does the geographical variation tell us anything about processes of ethnic concentration or dispersal?
• Is there any evidence in London of ethnic groups moving away or towards areas of ethnic concentration and from areas of higher deprivation?
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Data at ward scale
• Special Migration Statistics provide two tables on migrants:
- Age by sex (Table MG201)- Ethnic group by sex (Table MG203)
• No breakdown of ethnic group by age• Thus tables commissioned from ONS including:
CO711: District-district matrix CO723: in two parts
- Part 1: ward to region flows- Part 2: region to ward flows
both for 7 age groups (0-15, 16-19, 20-24, 25-29, 30-44, 45-59, 60+) for 7 ethnic groups
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Ethnic groups used in studyEthnic groups used in studyLabel used in paper
Ethnic group defined in Special Migration Statistics (Level 1)
Ethnic group defined in Key Statistics
White White White British; White Irish; Other White
Indian Indian Indian
POSA Pakistani and Other South Asian
Pakistani; Bangladeshi; Other Asian
Chinese Chinese Chinese
Black Caribbean, African, Black British and Black Other
Caribbean; African; Other Black
Mixed Mixed White and Black Caribbean; White and Black African; White and Asian; Other mixed
Other Other Other
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Example of the commissioned data: Example of the commissioned data: Table CO723 Part 1Table CO723 Part 1
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How consistent are the commissioned data forHow consistent are the commissioned data for flows between wards within London? flows between wards within London?
Ethnic group Inflow to London wards Outflow from London wards Difference
White 444,001 444,000 1
Indian 30,551 30,595 -44
POSA 40,569 40,600 -31
Chinese 8,523 8,443 80
Black 79,858 79,759 99
Mixed 24,572 24,526 46
Other 13,767 13,672 95
Total 641,841 641,595 246
Age group
0-15 110,250 110,306 -56
16-19 26,884 26,895 -11
20-24 104,043 103,959 84
25-29 143,046 143,005 41
30-44 186,224 186,195 29
45-59 41,664 41,587 77
60+ 29,730 29,648 82
Total 641,841 641,595 246
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London’s ethnic population, 2001London’s ethnic population, 2001
PopulationPopulation% in % in
LondonLondon% in % in
GBGB
London London share of share of
GB GB populationpopulation
IoS* IoS* GBGB
IoS* IoS* LondonLondon
White 5,103,203 71.2 91.9 9.7 0.53 0.36
Indian 436,993 6.1 1.8 41.5 0.57 0.40
POSA 429,700 6.0 2.2 33.6 0.56 0.45
Chinese 80,201 1.1 0.4 33.0 0.32 0.31
Black 782,849 10.9 2.0 68.2 0.65 0.32
Mixed 226,111 3.2 1.2 33.6 0.34 0.21
Other 113,034 1.6 0.4 49.3 0.44 0.32
Total 7,172,091 100 100 12.6
* Index of segregation = 0.5 ∑|Pie/P*e- Pir/P*r| computed at district level
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Non-white populations, 2001Non-white populations, 2001
Indian
Pak and OSA
Chinese
Black
M ixedOther Indian
Pak and OSA
Chinese
Black
MixedOther
GB London
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London’s ethnic population by borough, 2001London’s ethnic population by borough, 2001
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White location quotients, London wards, 2001White location quotients, London wards, 2001
Location quotient = (Pie/Pi)/(Pe/P**) >1 is over-representation
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Indian POSA Chinese
Black Mixed Other
Non-white location quotients, London wards, 2001Non-white location quotients, London wards, 2001
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Mean location quotients of ethnic groups by Mean location quotients of ethnic groups by
quintilequintile
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London’s ethnic migration, 2000-01London’s ethnic migration, 2000-01
Ethnic group
Flows* within
London
Inflows to London
from R of GB
Outflows from
London to R of GB
Net flows for London
withR of GB
White 444,000 124,337 169,116 -44,779Indian 30,573 6,074 7,033 -959POSA 40,585 4,093 5,642 -1,549Chinese 8,483 2,227 2,071 156Black 79,809 5,091 9,413 -4,322Mixed 24,549 3,517 5,357 -1,840Other 13,720 1,884 1,885 297Total 641,718 147,223 200,487 -53,264
* Average of the inflows and outflows from Table C0723
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How consistent are CO723 with SMS net flows between London and the rest of England and Wales?
Ethnic group From Table C0723
From SMS Table MG103
Absolute difference
White -44,779 -43,918 861
Indian -959 -885 74
POSA -1,549 -1,525 24
Chinese 156 353 197
Black -4,322 -4,456 134
Mixed -1,840 -2,071 231
Other 29 118 89
Total -53,264 -52,384 880
From SMS Table MG203
White -44,779 -44,804 25
Non-white -8,485 -8,529 44
Total -53,264 -53,333 69
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London’s London’s gross and net gross and net migration by migration by ethnic group, ethnic group, 2000-012000-01
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Intra- and Intra- and inter-inter-district district flows in GB flows in GB and and London, London, 2000-012000-01
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
Perc
en
tag
e
Intra-district
Inter-district
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
Perc
enta
ge
Intra-district
Inter-district
GB
London
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London’s white inflows and London’s white inflows and outflows by age, 2000-01outflows by age, 2000-01
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London’s non-white inflows and outflows by age, 2000-01
INFLOWS
OUTFLOWS
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Migration rates, 2000-01Migration rates, 2000-01
Inflow, outflow and net flow rates are between London boroughs and rest of GB
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Age-specific migration rates, 2000-01Age-specific migration rates, 2000-01
Within London Within GB
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Flows within London by age and ethnic Flows within London by age and ethnic group, 2000-01group, 2000-01
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Migration rates into and out of London, Migration rates into and out of London, 2000-012000-01
Rates into London Rates out of London
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Flows between London and the rest of GBFlows between London and the rest of GB
Inflows to London Outflows from London
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London’s migration at ward levelLondon’s migration at ward level
628 wards
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Net migration by ward, whites, Net migration by ward, whites, based on flows within Greater Londonbased on flows within Greater London
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White net migration by ward, based on White net migration by ward, based on flows with the rest of England and Walesflows with the rest of England and Wales
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White immigrants by London wardWhite immigrants by London ward
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Patterns on non-white net migration Patterns on non-white net migration within Londonwithin London
Indian POSA Chinese
Black Mixed Other
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20-24
20-24
>60
>60
Within London
Outside London
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20-24
20-24
>60
>60
Within London
Outside London
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Indian POSA Chinese
Black Mixed Other
Immigrants by London ward in 2000-01Immigrants by London ward in 2000-01
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Net migration rate by ethnic group Net migration rate by ethnic group and location quotient quintileand location quotient quintile
Quintile 1 Quintile 5High location quotient/ Low location quotient/Over-representation Under-representation
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Townsend index for London wardsTownsend index for London wards
Quintile 1: least deprived Quintile 5: most deprived
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Net migration by ethnic group and Net migration by ethnic group and deprivation quintiledeprivation quintile
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Net migration rate by ethnic group and Net migration rate by ethnic group and deprivation quintiledeprivation quintile
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Age-specific ethnic group net migration rates Age-specific ethnic group net migration rates by deprivation quintileby deprivation quintile
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Age-specific ethnic group net migration rates by Age-specific ethnic group net migration rates by deprivation quintiledeprivation quintile
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ConclusionsConclusions• There are significant variations in migration
propensities by ethnic group and age but also for within, into and out of London migrants
• Decomposing net migration balances into flows ‘within’ and ‘outside’ London exposes key processes of suburban decentralisation, outward dispersal and inward concentration
• Non-white migration dispersing rather than concentrating non-white populations and all ethnic groups are moving from more deprived to less deprived areas
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Contact
Acknowledgements
ESRC for Small Grant within the UPTAP programme (RES-163-25-0028)
ONS Customer Services (Terry Familio) for commissioned data