Gross domestic product has fallen 3.7 percent in the September quarter. 

Stats NZ says it's the second largest fall since the current series began in 1986. 

It says this reflects a widespread drop in economic activity due to the Covid-19 restrictions and lockdowns, in the second half of the quarter. 

The fall follows a 2.4 percent rise in the June quarter. 

Stats NZ says some industries were more affected than others by restrictions. 

To discuss, NZ Herald Business Editor at Large, Liam Dann joined Kerre McIvor. 

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