Prices are supposed to be market signals. When they rise, they put some people off buying the goods and encourage suppliers to produce more of the goods, which tends to bring the price back down.
But financial markets, for trading in the likes of company shares and national currencies, are different. When prices rise on those markets, more people want to buy the share or currency. It is now abundantly evident the market for houses has become a financial market.
The Weekend Herald's report yesterday on the frequent "flipping" of investment properties shows buyers are treating inhabitable houses like a stock or other valuable paper.
Between January last year and May this year, 1500 Auckland houses were bought and sold again. Nearly 100 were sold three times in those 17 months. Seven were sold four times and two five times in less than a year.
These houses are unlikely to be housing anybody. The buyers might not have even visited them since the purchase. They stand empty, sometimes in pristine renovated condition, while their value rises - by an average $1600 a day over those 17 months. Every time they sell, the seller books the capital gain as equity that can be used to buy another house, and the churn continues.