As UK banks struggle with a crippling IT failure, companies are being warned that technical vulnerabilities are internal, not from the outside.

Inflation targeting, a monetary policy framework pioneered in New Zealand, is now widely discredited.

The New Zealand dollar held above 79 US cents as leaders from the Group of 20 nations increased pressure on European Union policy makers.

Wall St was up overnight as investors opted to rekindle optimism the US Federal Reserve will come up with new stimulus measures.