Subnational Migration

Methodology for determining the NZ-location information in migration records The geographic location of final records of migrant arrivals and departures is determined by a process that accesses integrated border movements (sourced from NZ Customs Service) and address notifications in the Stats NZ IDI (address_notification table compiled by Stats NZ IDI). Final records of migrant arrivals and departures are integrated with their address notifications histories. The address notifications with associated notification dates closest to the migrant movement dates are selected as the NZ-residence location. Migrants may have address notifications recorded before and after the migrant arrival or departure date. The address notification closest to the movement date is selected irrespective of the time sequence of address notification in relation to the border movement. Disclaimer The results in this collection are not official statistics They have been created for research purposes from the Integrated Data Infrastructure (IDI), managed by Stats NZ. Access to the anonymised data used in this study was provided by Stats NZ under the security and confidentiality provisions of the Statistics Act 1975. Only people authorised by the Statistics Act 1975 are allowed to see data about a particular person, household, business, or organisation, and the results in this collection have been confidentialised to protect these groups from identification and to keep their data safe. Careful consideration has been given to the privacy, security, and confidentiality issues associated with using administrative and survey data in the IDI. Further detail can be found in the Privacy impact assessment for the Integrated Data Infrastructure available from www.stats.govt.nz. en-NZ