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The Changing Face of Hong Kong’s Population Population Data System in a Metropolitan City. Dominic KT Leung Census and Statistics Department Hong Kong Special Administrative Region, China. What is HK Population? (Cont’d). HK people becoming highly mobile
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The Changing Face ofHong Kong’s PopulationPopulation Data Systemin a Metropolitan City Dominic KT Leung Census and Statistics DepartmentHong Kong Special Administrative Region, China
What is HK Population? (Cont’d) • HK people becoming highly mobile • An average of 13 million passenger trips per month • A dynamic population data system is therefore required
Concepts of Hong Kong Resident Population (HKRP) • Adopted since August 2000 to address changes in mobility and residency patterns of HK people • HKRP comprising • Usual residents • Mobile residents
Concepts of HKRP (Cont’d) • Usual residents • HK Permanent Residents who spend on the average three months or more in the six month periods before or after the reference time point; and • HK Non-Permanent Residents who are found in Hong Kong at the reference time point
Concepts of HKRP (Cont’d) • Mobile residents • HK Permanent Residents who spend on the average between one to less than three months in the six month periods before or after the reference time point
Benefits of HKRP Concepts • Mainly reflecting the de jure population • Also including a group of persons with a somewhat strong linkage to Hong Kong
A framework of population data system • Population Census / By-census • Intercensal population estimates • Administrative data • Household surveys
Population Data System in HK • POPULATIONCENSUS / BY-CENSUSRESULTS • Benchmark data on population socio- economic characteristics • Statistics for small geographical areas and population sub-groups Data Sources • POPULATIONCENSUS / BY-CENSUSDATA • Population Census – a complete headcount of the population conducted every 10 years since 1961 • Population By-census – a large sample, detailed enquiry between 2 censuses Statistical Outputs • POPULATIONPROJECTIONS • Population projections – updated at intervals of 2 to 3 years • ADMINISTRATIVEDATA • Anonymous individual data / aggregate statistics from administrative systems • e.g. birth, death, passenger movement records, departure / arrival statistics • POPULATIONESTIMATES • Half-yearly population estimates – based on data from census / by-census and administrative systems • HOUSEHOLDSURVEY RESULTS • Up-to-date statistics on population socio- economic characteristics between censuses • Statistics on current social topics • VITAL EVENTSSTATISTICS • Statistics on demographic trends • HOUSEHOLDSURVEY DATA • Continuous household surveys plus ad hoc surveys • e.g. General Household Survey and Thematic Household Survey
Alternative conceptsof population • Day-time population • Number of people who are present in an area during normal business hours • Can be crudely compiled based on place of residence and place of work • Can be enhanced if more information is available such as flow of students; cross-district flow for leisurely activities like shopping; and flow of non-residents including cross-boundary workers and students living in the mainland as well as foreign visitors
District Council / Constituency Area :Central & Western Chung Wan
Alternative conceptsof population • HK residents having resided/staying substantially in the mainland • Having resided/stayed in the Mainland for at least one month in the past six months before the reference time-point
Alternative conceptsof population • HK residents having resided/staying substantially in the mainland (cont’d) • Data collected through a survey approach with estimation adopting a post-stratification method (by type, sex, age and duration of residence) based on administrative data • Limitation of the survey approach: Not all short-stay HK permanent residents can be covered (confined to those who had a usual place of residence in HK)
Interactive mode ofdata dissemination • The advance of the Internet technology support dynamic mode of information delivery • Already an international trend in disseminating statistics interactively through the Internet • Interactive Data Dissemination Service (IDDS) launched in Aug 2008
Partnership with businessin data dissemination • Re-disseminating official statistics through business partnership • Mode of public-private collaboration • Extension of traditional data dissemination channels • Example: Building group statistics jointly developed by Centamap & C&SD
Partnership with businessin data dissemination (cont’d) • Advantages of business partnership • Better understanding of market needs →Innovative use of statistics • Leverage on the strengths of others • Extensive/worldwide business network maintained by business partners • With additional resources (e.g. expertise) → overcome the resource constraint problem • Less subject to government constraints and practices → More flexible and timely deployment