On an unadjusted basis, the quarterly volume of retail sales were up 4.5 per cent from a year earlier, for a 4.2 per cent increase in value to $23.78 billion. Spending on electrical and electronic goods rose to $919 million, up 8.5 per cent from a year earlier, although the volume sold was 15 per cent higher.
Even with that lift in volume, the sector's stockpiles at the end of the quarter were up 20.7 per cent at $440m.
Warehouse Group's Noel Leeming unit noted the Rugby World Cup drove demand for TVs and computer accessories when it reported a 7.3 per cent lift in sales for the 13 weeks ended October 27.
Grocery and supermarket retailers were able to pass on higher prices to consumers. Seasonally adjusted sales values rose 1.7 per cent in the quarter, outpacing a 1.4 per cent increase in the volume of sales. On an unadjusted basis, grocery and supermarket sales - the biggest component of retail spending - were up 3.5 per cent at $5.1b from a year earlier, with just a 1.9 per cent increase in the volume of goods sold. Inventories worth $731m at the end of the period were 0.6 per cent lower than a year earlier.
Satish Ranchhod, an economist at Westpac New Zealand, said the data was stronger than his team's forecast for a 1.4 per cent lift, which was an outlier among much more muted expectations.
"Today's strong retail spending result supports our view that New Zealand's economic cycle is starting to turn. Low interest rates are boosting the housing market, and that in turn is boosting spending appetites. Combined with increases in government spending, we expect to see retail spending continuing to lift through late 2019 and 2020," he said.
Ranchhod said the data didn't have any implications for his team's forecast for quarterly economic growth of 0.3 per cent.
ASB Bank economist Mark Smith differed, saying the stronger sales data - ASB had predicted 0.8 per cent growth - could provide a tailwind to the 0.4 per cent GDP growth they predict for the quarter. While that could see further interest rate cuts delayed, Smith said the official cash rate still looked likely to head lower in 2020 with the stronger retail sales unlikely to be sustained.