This is bad news in my book.
MSD has always used 'prioritised ethnicity' recording. If a client records they are Maori and other ethnicities, Maori is prioritised and the individual is counted as Maori. The same applies in the health and justice systems (unless that has changed also).
The advantage of the prioritisation method for recording is individuals are counted once.
It's going to get messy henceforth as individuals and ethnicities will sum to in excess of 100% (see chart below).
But there is another change.
New Zealanders with a European heritage have previously been categorised as 'NZ European'.
Now they will be labelled just 'European'.
I think that's a misnomer. If ethnicity is now about 'cultural affiliation' (according to MSD) is the culture of New Zealand the same as the culture of Europe?
The announcement itself refers solely to the country as 'Aotearoa' so I cannot help but get the feeling dropping NZ is more than a statistical convenience.
Here's how statistics will be affected in the future: