The Government is being advised to invest in immigration data gathering as record levels of arrivals and departures continue.  

In February more than 253,000 migrants arrived and about 122,000 left, putting net migration at almost 131,000. 

Business NZ Chief Executive Kirk Hope told Mike Hosking that where they come from isn't a problem as long as skills meet labour market needs.  

He says this is one the of the big data gaps the Government needs to look at, to find out exactly which people and skills are coming in versus who is leaving. 

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