Methodology
Age is calculated as the difference in years between the calendar year worked, and birth year.
Our workforce is defined as the number of individuals who work full time in an industry for at least three months in a calendar year. These individuals are then linked to the region they spend the most time living in during that year.
Existing workforce are individuals who worked in the same industry the previous calendar year. New entrants are workers in their first year working in that industry. Returning workers are workers who have some work experience in the industry, but were not working in the industry the previous year.
Access to the data used in this study was provided by Stats NZ under conditions designed to give effect to the security and confidentiality provisions of the Data and Statistics Act 2022. The results presented in this study are the work of the author, not Stats NZ or individual data suppliers.
These results are not official statistics. They have been created for research purposes from the Integrated Data Infrastructure (IDI) which is carefully managed by Stats NZ. For more information about the IDI please visit https://www.stats.govt.nz/integrated-data/.
The results are based in part on tax data supplied by Inland Revenue to Stats NZ under the Tax Administration Act 1994 for statistical purposes. Any discussion of data limitations or weaknesses is in the context of using the IDI for statistical purposes, and is not related to the data's ability to support Inland Revenue's core operational requirements.
