There has been a long term trend of declining interest rates over the last 30 years and that has been inflating all asset prices. It's one of the key reasons why there have been significant capital gains in both the housing and share markets in recent years.
I see BNZ economists are predicting a 12% decline in house prices which probably isn't a bad thing to take a bit of heat out of the market but, as I said in a previous post, it will vary a lot between regions. For those who want prices to go down by more than that, all I can say is be careful what you wish for.


