Yes but aren't the numbers similar in both directions cancelling each other out?
It could just transfer potential spending money to flights & airport taxes.
That was my feeling. If I spent $4k on a NZ trip as I cant go to AUS thats into our economy and tourism operators/supporting retail. If I spent that in AUS it drops our balance of payments and no money into our economy. Same applies to the OZ people who are stuck there. If however, we all flew to the other country, while it won't fully offset, a lot of it would seem to if travel was 1:1
If the AUS tourist to NZ volume exceeded the Kiwi's going to AUS we get a benefit, buit isnt it just a net benefit?
Its really not that hard:
In the same time period (so its like for like) there were 1.372m Kiwis that went to Australia. https://www.tourism.australia.com/content/dam/assets/document/1/c/1/d/5/2241257.pdf
And from the previous link 1.491m came from Australia to NZ.
So you do the math. Is it cancelling each other out? Is it just snowbunnies coming from Australia to NZ? DYOR.