Headwinds are continuing to hurt the regional economy, with warnings of a primary sector slowdown. 

Infometrics' latest economic monitor for the three months to September shows economic growth slowing compared to earlier in the year. 

Principal Economist Brad Olsen told Mike Hosking that population growth has supported some areas like Auckland. 

He says areas like Northland haven't had as many international arrivals, meaning spending growth hasn't been as solid recently. 

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