The Reserve Bank of Australia is warning borrowers against taking on too much debt as concerns grow about a potential housing bubble in Sydney and Melbourne.

The New Zealand dollar fell on speculation that potential developments could give the bank more room to cut interest rates.

The New Zealand dollar fell after the government stepped up measures to curb Auckland's bubbling housing market.

The Government has surprised the market with a stronger than expected move on property tax, writes Liam Dann.

Learning how to budget is one of the most valuable skills you can teach your teenagers, writes Diana Clement.

Whatever lies ahead, your best bet is to avoid any position in which you have to sell - mortgagee sale or not, advises Mary Holm.

Head of Auckland's biggest real estate company wants urges $500k deposit for homes worth over $1.5 million and ditching LVR for homes under $500k.

It's a tough time to be an investment banker in Southeast Asia. Mergers involving Southeast Asian companies have dropped 45 per cent this year to the lowest level since 2009.

New lending restrictions to be imposed on Auckland property investors will do little to cool the surging market.

No other advanced economy in the world would allow almost all of its banking system to be owned overseas, writes Paul Glass. "Let's require the big four banks to list 25 per cent of just their NZ operations on the NZ Stock Exchange."

Gen Y aren't the only ones living payday to payday, with a third of NZers finding dealing with money "stressful and overwhelming".

The dollar weakened after the Reserve Bank governor reiterated the currency was "unjustified and unsustainable".

Economics editor Brian Fallow says today's Reserve Bank move is crude, ad hoc and temporary - but it buys some time.

The Reserve Bank has singled out the New Zealand dairy sector as an "area of risk" for the financial system.

The NZ dollar has held steady overnight ahead of the Reserve Bank's Financial Stability Report.

The NZ dollar touched 92.82 Australian cents, its lowest level since late January, as traders price in rate cuts.

A newly licensed online lending service is targeting prospective homeowners who have been shut out of the mainstream mortgage market by low-equity loan restrictions.

New Zealand shares rose yesterday, paced by SkyCity Entertainment Group and Meridian Energy as investors mulled a possible rate cut.

An official cash rate of 3.5 per cent, which would have been base camp in previous cycles, is now being seen as the highest it will climb this time.

Fonterra will late this month release its milk price forecast for 2015/16 and indications are that it will be towards the lower end of market expectations.

Core retail spending (excluding fuel and vehicle-related spending) fell 0.8 per cent in April, the first time since last June.

Macquarie chief executive Nicholas Moore took home more than A$45,000 ($47,618) a day last year as the investment group posted its best profit result since the global financial crisis.

The kiwi touched 74.23 US cents, and was trading at 74.43 cents at 8am in Wellington, from 74.99 cents at 5pm yesterday.

BNZ boss Anthony Healy says he doesn't believe the Auckland property market is entering bubble territory.

BNZ cash earnings have risen 4.5 per cent in the six months ended March 31 to $418 million as growth in housing and business lending, and lower funding costs, drove up net interest income.

Rich-lister Stephen Jennings has launched defamation action against Fairfax Media and a senior journalist Michael Field about Jennings' business activities in Russia and Kenya.

The kiwi dropped yesterday after data showed annual wage inflation in the private sector slowed to a 0.3 per cent pace in the three months ended March 31.