Ask Fairfax New Zealand’s new product development director what he’s keen on and it's not paywalls – it's ads.

Retiring Warehouse Group chairman Graham Evans, the former Woolworths New Zealand managing director, details his career highs, his jitters over 24-hour trading and the biggest threat to New Zealand retailers.

With the death of Mr Mandela, South Africa will have to contend with the death also, of an era he so magically encapsulates.

In recent times they have not reflected the importance of the artist.