From time to time, we hear or read about medical procedures that can be ineffective and needlessly drive up the nation’s health-care costs. This occasional series will explore...

An insurance company has been ripping off its clients. A bank has been lending without properly assessing ability to repay. Trustees of a super fund have been putting the interests of its owner ahead of those of the members they are sworn to protect.

All of these...

We are now well and truly in the era of big data. Scandals such as Cambridge Analytica show that vast amounts of our personal data are being harvested for commercial gain and, worse still, nefarious purposes. Yet big data also provides exciting opportunities for empowering consumers and enabling new products and services.

A new frontier is the roll...