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Mapping population data for Parliament - Oli Hawkins
- 1. Mapping population data for Parliament Oliver Hawkins Social and General Statistics House of Commons Library
- 2. The House of Commons Library “The best kept secret in the British constitutional architecture” Andrew Dilnot Chair of the UK Statistics Authority
- 3. WHAT IS PARLIAMENTARY DATA? Mapping population data for Parliament
- 4. MAPPING ETHNIC SEPARATION Mapping population data for Parliament
- 5. Ethnic separation “Which constituencies are the most and least ethnically segregated?”
- 6. Index of dissimilarity To build an index of dissimilarity you need data on the population … • In two mutually exclusive groups • At two levels of geography 2011 Census • Ethnic groups: White and Non-white • Areas: constituencies and output areas
- 7. POPULATION BUILDER Mapping population data for Parliament
- 8. What are small area population estimates? The Office for National Statistics produces annual population estimates for a range of area types • Countries • Regions • Sub-regional areas (LAs, CCGs, constituencies …) • Output areas (OAs, LSOAs, MSOAs)
- 9. What’s missing? 1. Natural settlement geographies - Produced every ten years for the Census 2. Custom area population estimates - School catchment areas - Housing estates - Neighbourhood populations
- 10. CONSTITUENCY BOUNDARIES Mapping population data for Parliament
- 11. 2018 Boundary Review • Number of constituencies cut by 50 to 600 • All new constituencies +/- 5% of 74,769 • Seats redistributed within regions • Three sets of proposals – Initial 2016 – Revised 2017 – Final 2018