As KiwiSaver approaches its twelfth anniversary there is growing interest from people in the performance of their funds. A new online tool launched by the government this year called Smart Investor has made it easier than ever to compare how well your fund is going against others. In part three of the series Tamsyn Parker looks at what should be done about the poor performers.

When Australia's Productivity Commission lifted the lid on its superannuation industry last year it found entrenched underperforming funds were harming millions of members.

The inquiry found significant numbers of products were underperforming, even after adjusting

The size of KiwiSaver: