Insights - New Zealand Treasury

Welcome to Insights

Informing policies and services through better information.

In 2016, Te Tai Ōhanga The Treasury engaged Harmonic Analytics to develop and host the Insights Dashboard.

Harmonic and The Treasury continued to enhance the Insights Dashboard until it was decommissioned on July 31, 2021.

Harmonic presents this Insights Dashboard as a visualisation example in the R language using the R Shiny package.

Dashboards that contain similar information can be found at:

User inputs:

Population explorer shows the key drivers of population change in New Zealand, both at a total New Zealand level and for specific territorial authorities.

(Hover your mouse over the data visualisations to reveal more information).

User inputs:

Download current data

Population directions shows how the population of New Zealand has changed over time and what has driven this change.

(Hover your mouse over the data visualisations to reveal more information. For further information about the tool see the Background section of the Population explorer page.)

User Inputs:

This page describes different groups of children and youth at risk, shows the outcomes they are projected to achieve without additional support, and maps their location so services can be better targeted to meet their needs.

User Inputs:

This page shows outcomes for youth as they transition to adulthood. It shows where they are doing well, where they may need additional support, and the parts of the country where the need is greatest.

User Inputs:

This page shows information about the use of services by children and youth at risk, and how this varies across the country. It presents a selection of education and employment services, but will expand into other areas in future.

Insights was developed by the New Zealand Treasury's Analytics and Insights team with the help of Harmonic Analytics Limited, using data from Stats NZ's Integrated Data Infrastructure (IDI). All information shown in Insights is anonymous. IDI data is held in a secure environment and made available to researchers under strict conditions. The analysis is protected by Stats NZ rules to ensure that no individual can be identified.

Insights presents information about population change in New Zealand, and about risk, outcomes, and service use for children and youth.

The results from the population change tools are based on the estimated New Zealand resident population from June, 2008 – June, 2016, as outlined in Identifying the New Zealand resident population in the Integrated Data Infrastructure. People are considered to be resident in New Zealand if they spend at least 12 of the 16 months centred on our date of interest in the country. For example, to be considered as being resident in 2016, a person needs to spend at least 12 months in the country between October 2015 and February 2017.

The results from the children and youth tools are also based on an estimated New Zealand resident population from the end of December, 2013 - December, 2016, as outlined in Identifying the New Zealand resident population in the Integrated Data Infrastructure. Temporary migrants such as international students and working holidaymakers are excluded from the results, as we have limited data about their past, and they are not eligible for many services.

Results are mapped geographically according to people's residential address. This is based on addresses collected by a number of agencies, but in some cases may be out of date or inaccurate. The quality of geographic information in the IDI is discussed in Quality of geographic information in the Integrated Data Infrastructure.

The data presented in Insights was developed by linking administrative information across government agencies. The data will not always be accurate, particularly when presented at a very detailed level. In some cases information for one person may be incorrectly linked to information for a different person. The linking process is described at Resources for IDI users along with other technical information. While the results highlight the power of using integrated administrative data in new and innovative ways, some of the methods are exploratory in nature. Caution should be taken in interpreting the results of any detailed analysis undertaken using Insights. Counts have been randomly rounded to base 3 and small counts suppressed (replaced with an s) to protect confidentiality.

Disclaimer: Access to the data presented was managed by Statistics New Zealand under strict micro-data access protocols and in accordance with the security and confidentiality provisions of the Statistics Act 1975. These findings are not Official Statistics. The opinions, findings, recommendations, and conclusions expressed are not those of Statistics New Zealand.

Harmonic's Web Analytics: This site also uses Matomo, a web analytics service hosted by Harmonic. Matomo uses cookies. The information generated by the cookie about your use of the site is transmitted to, and stored by Harmonic on servers in New Zealand. We use this information for the purpose of evaluating how you use this site, and compiling reports on site activity. Harmonic will not associate your IP address with any other data held by Us. When you use this site you consent to the processing of data about you by Harmonic, in the manner and for the purposes set out above.


1. Purpose

The purpose of this privacy policy is to let users of (the "Site") know when we collect personal information and what we do with it. We do not use, share or transfer personal information in connection with the Site except as set out in this policy.

Collection, storage and use

2. No need to disclose personal information

The Site can be viewed without the need to disclose any personal information to us.

3. Your disclosure of personal information

However, you may choose to disclose personal information when adding material to the Site. Such information will be viewable by Site administrators, certain Harmonic staff and, if published, members of the public. Please do not post or otherwise transmit personal information of a sensitive nature.

4. Holding of information

Information (including personal information) that you provide to Harmonic in electronic form will be held by Harmonic, and may be shared with, and held by, Third Party Contractors to the extent necessary for the services they provide related to the administration, improvement, and/or securing of the Harmonic’s ICT systems, the Site, and the information the Site contains. Email addresses provided when commenting in the discussion forum or other areas of the Site or when emailing feedback directly to Harmonic are not made available to the public. Unless required by law, we will not publicise the names or email addresses of individuals who provide feedback to us without their consent.

5. Use of personal information

We will only use personal information provided to us for the purposes of administering, evaluating, improving, and securing the Site and the information it contains, improving our services and communicating with you.

6. Feedback

Feedback is important and is used to evaluate and improve the Site. If you provide feedback on the Site directly to Harmonic via the supplied email address, that feedback will be sent to appropriate Harmonic staff. We may pass on relevant comments to other people within the Harmonic who administer, have contributed content to, or are otherwise interested in, the Site. This could include your email address and other identifying information.

Statistical information and cookies

7. Statistical information collected

We may collect statistical information about your visit to help us improve the Site. We use Motomo Analytics hosted by Harmonic for tracking usage of the Site. This information is aggregated and non-personally identifying. It includes:

  • your IP address;
  • the search terms you used;
  • the pages you accessed on our Site and the links you clicked on;
  • the date and time you visited the site;
  • the referring site (if any) through which you clicked through to this Site;
  • your operating system (e.g., Windows XP, Mac OS X);
  • the type of web browser you use (e.g. Internet Explorer, Mozilla Firefox); and
  • other incidental matters such as screen resolution and the language setting of your browser.
  • 8. Use of statistical information

    The statistical information referred to above will be viewable by Site administrators and certain other Harmonic staff.

    9. Cookies

    This Site generates persistent session cookies for the purpose of monitoring Site usage. The cookies do not collect personal information. You can disable them or clear them out of the web browser you are using to view this Site without affecting your ability to use the Site.

    Rights of access and correction

    10. Your rights

    Under the Privacy Act 1993, you have the right to access and to request correction of any of your personal information provided to Harmonic in connection with your use of this Site. If you would like to see the personal information relating to you that Harmonic has stored, or to change such personal information, or if you have any concerns regarding your privacy, please contact us at the address set out below. Harmonic may require proof of your identity before being able to provide you with any personal information.

    Privacy Officer

    Lee Begg

    Harmonic Analytics

    PO Box 5033

    Wellington 6140


    11. Privacy Commissioner

    If you are not satisfied with our response to any privacy-related concern you may have, you can contact the Privacy Commissioner:

    Office of the Privacy Commissioner

    PO Box 10-094

    Wellington, New Zealand

    Tel: +64 4 474 7590

    Enquiries Line (from Auckland): 302 8655

    Enquiries Line (from outside Auckland): 0800 803 909

    Fax: +64 4 474 7595