The Government may only be putting up four projects for public-private partnerships at its Infrastructure Investment Summit later this week.  

It's invited large companies from 14 countries to drive foreign capital into New Zealand. 

Northern Infrastructure Forum Executive Director Barney Irvine told Mike Hosking there's a positive glow around the New Zealand market and investors are liking the signals so far, but we need to retain this interest.  

He says they need to see a pipeline of high-quality funded projects, and if they don't see that, the glow will probably fade. 

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