New Zealand's Financial Markets Authority is warning KiwiSaver investors not to assume any  correlation between funds which charge high fees and those that give good returns. The FMA's latest KiwiSaver annual report includes data showing fees for "active members" (those not in default funds) have almost doubled over the last five years, from $90 per person to $173. Over the last year alone, average fees rose more than 19 percent. The FMA's KiwiSaver Tracker tool, which correlates fund return and fee data, shows "no clear link between higher fees and higher returns, apart from a couple of standout funds". FMA director of regulation Liam Mason said he hoped the advent of two low-fees providers - Simplicity and Juno - would start to move the dial in terms of fees overall, reports Newsroom. CBA and the CSIRO scientific research agency are teaming up to test the use of blockchain technology to manage National Disability Insurance Scheme (NDIS) payments, reports Finextra. Their prototype app enables users to find, book and pay for services from NDIS service providers without the need for paperwork or receipts. The new look Australian $50 banknote has been officially unveiled and will go into circulation later this month. The old $50 note was reportedly the most prone to being counterfeited, and the new version has improved security features including a top-to-bottom window, three images along the window and a motif that changes colour with motion. Like the new $5 and $10 notes it also has tactile dots to assist blind and visually-impaired people.