KiwiSaver active member numbers - composite segmentation (matrix)

9 February 2022 at 12:18 (3 years ago)

Existing data put into a 2x2 matrix splitting active member numbers by age group & income bracket New data putting contribution rates of active members into 2x2 matrices, vs age group, and vs income bracket

Opening this data would solve the problem of…

The KiwiSaver system is in its infancy vs Australia's superannuation system - whilst existing data is of some use for providers to understand segmentation of the market to determine member needs based on demographics (e.g. proximity to a life event), there is very limited publicly availably cross-sectional data on the relationship between:
1) Age group and income
2) Age group and contribution rate
3) Income and contribution rate

Having this data available on a Kiwisaver system level would not only help participants better understand the structure of the KiwiSaver market, and it would also better inform broader policy discussion on contribution rates and the relative merits of voluntary vs compulsory contribution based on historical propensities.

Opening this data would solve this problem by…

[Role of data in helping solve problem discussed in previous section]

Response from
Inland Revenue Department

4 March 2022 at 08:47 08:47 am (3 years ago)

Status More information required about request

Comments Kia ora, I am currently working on your request. The data analyst wanted me to confirm how you would like the data to be set out. You have mentioned "The template/structure of these matrices for population with data have been emailed to info@data.govt.nz along with further detail as regards contribution rates". Can you please send these to oia@ird.govt.nz as well or explain how you want the data laid out more clearly. Thank you, Melissa

2 Comments

Donna Finlayson (Inland Revenue Department) 2 March 2022 at 08:11 08:11 am (3 years ago)

Thank you for getting back to me so quickly.

I will lodge your request as as OIA today.

Kind regards

Donna
XW (Requester) 1 March 2022 at 15:44 03:44 pm (3 years ago)

I’m aware of both the monthly and annual data spreadsheets already provided by the IRD, however there are quite a few missing pieces so I’d like to go ahead with the original OIA request for cross-sectional matrices of member numbers with these categories/classes:

1. Age vs Income
2. Age vs contribution rate
3. Contribution rate vs income

The template/structure of these matrices for population with data have been emailed to info@data.govt.nz along with further detail as regards contribution rates. The data required is only for a single point in time, being the most recent available, however it would be nice to have historical data and/or these tables added to IRD's annual KiwiSaver data pack.