The changing face of hong kong s population population data system in a metropolitan city
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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 of Hong Kong’s Population Population Data System in a Metropolitan City

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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 onpopulation socio-economic characteristics

  • Statistics for smallgeographical areas andpopulation sub-groups

Data Sources

  • POPULATIONCENSUS / BY-CENSUSDATA

  • Population Census –a complete headcount ofthe population conductedevery 10 years since 1961

  • Population By-census – a largesample, detailed enquirybetween 2 censuses

Statistical Outputs

  • POPULATIONPROJECTIONS

  • Population projections– updated at intervalsof 2 to 3 years

  • ADMINISTRATIVEDATA

  • Anonymous individual data /aggregate statistics fromadministrative systems

  • e.g. birth, death, passengermovement records, departure /arrival statistics

  • POPULATIONESTIMATES

  • Half-yearly populationestimates – based ondata from census /by-census andadministrative systems

  • HOUSEHOLDSURVEY RESULTS

  • Up-to-date statistics onpopulation socio-economic characteristicsbetween censuses

  • Statistics on currentsocial topics

  • VITAL EVENTSSTATISTICS

  • Statistics on demographictrends

  • HOUSEHOLDSURVEY DATA

  • Continuous household surveysplus ad hoc surveys

  • e.g. General Household Surveyand Thematic HouseholdSurvey


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


District Council / Constituency Area : Tuen Mun  San King


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


Thank you


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