By David Hargreaves
Statistics NZ has corrected its consumers price index (CPI) figures for the September 2016 quarter, having discovered a "manual processing error" around measurement of lower ACC levies for light vehicles.
As a result, the quarterly CPI change in the September 2016 quarter is now given as 0.3%, having previously been published as 0.2%.
The annual change in CPI for the year to the September 2016 quarter moves to 0.4% from the previously published figure of 0.2%.
"The changes were required to correct a manual processing error discovered by Statistics NZ. The error affected prices for vehicle relicensing fees, within the transport group. There is a flow-on effect on the non-tradable index. The index for non-tradables less government charges is unaffected," Stats NZ said.
"Statistics NZ is confident that the correction only affects the September 2016 quarter index numbers, as it occurred in our measurement of lower ACC levies for light vehicles that came into effect during the quarter.
"Following our protocols for errors, Statistics NZ has decided to correct the CPI now to ensure our customers have the best possible information to inform their decisions. We have already notified the Reserve Bank of these changes ahead of its OCR announcement on Thursday this week. We also notified the Treasury ahead of its next Half Year Economic and Fiscal Update (HYEFU).
"Statistics NZ apologises for any inconvenience caused by this error."
| Series | September 2016 quarter | |||
| Quarterly (%) | Annual (%) | |||
| Originally published | Corrected | Originally published | Corrected | |
| CPI | 0.2 | 0.3 | 0.2 | 0.4 |
| Non-tradables | 0.3 | 0.5 | 2.1 | 2.4 |
| Transport | -3.0 | -1.9 | -6.7 | -5.6 |
The interesting thing about this upward correction is that it adds to inflation figures that were, as originally stated, actually higher than economists' forecasts.
It's unlikely the upward revision to inflation will stop the RBNZ from cutting interest rates via the Official Cash Rate on Thursday to an expected new record low of 1.75%
However, the revision does have ramifications for the RBNZ's forecasts in its accompanying Monetary Policy Statement - and for the given timeframe in which the RBNZ may be able to get inflation back more toward its explicit 2% target.
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