By Roger J Kerr

That the Reserve Bank of New Zealand should rely entirely on macro-prudential debt lending regulations on the banks and other Government initiatives to control/rectify the runaway Auckland residential property market and not use monetary policy tools (i.e. raising interest rates) could prove to be the correct approach, or end in tears!
We will know the answer as to whether it was the correct policy formulation or not in about 12 months’ time.
If the housing boom caries on and consumer demand ramps higher, we could potentially experience demand-driven inflation and supply side inflation at the same time if commodity/oil prices reverse globally. Just painting one potential risk scenario! The Auckland housing market can still be more of a risk to the economy than just a financial stability issue for the banks and the RBNZ.
With global inflation non-existent and the tumble in oil prices the RBNZ find themselves in yet another dilemma with our annual inflation well below their 1.00% target minimum. Hence the renewed pressure on the RBNZ to cut interest again to below 2.50%.
The OCR review statement last week from the RBNZ to return to an “easing bias” with monetary policy runs the risk of flip-flopping too often on their future guidance based solely on historical economic data. Under their inflation control mandate the RBNZ are supposed to “look through” one-off price changes that are outside their control (i.e. the collapse in global oil and commodity prices).
The RBNZ did highlight last week that their own measure of annual core inflation the “sectoral factor model”, which strips out volatile food and energy prices, was tracking at +1.6% pa and thus inside the 1% to 3% target band.
The problem is the target band is on the official CPI inflation measure from Statistics NZ which is at +0.1%, not their own core measure. Years ago there were several strong cases made for the RBNZ’s inflation target band to be cross-referenced to the average inflation rate of our trading partners, not a rigid numerical 1% to 3%. The 1% to 3% band does not cater too well with the current global record low inflationary environment and the RBNZ come under pressure to cut interest rates, when such action could prove to be damaging to the overall economy through a boom/bust housing cycle.
On an international trade competitiveness basis the linkage to trading partner’s inflation rates may have some merit. However, it does not necessarily protect the purchasing power of domestic savers if NZ inflation increases significantly but is still in line with trading partners.
High and rising inflation favour borrowers over savers and that is not what the economy needs.
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Roger J Kerr is a partner at PwC. He specialises in fixed interest securities and is a commentator on economics and markets. More commentary and useful information on fixed interest investing can be found at rogeradvice.com
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