An online survey to find out why eligible voters choose either the Māori Electoral Roll or the General Electoral Roll is hoping to attract at least 2,000 respondents.
Led by University of Auckland political scientist Dr Lara Greaves, the brief survey is the first of its kind to focus on this aspect of the voting system.
"That core question of why Māori voters choose to register the way they do in the first place is something no-one really knows, and we'd like to find out," Greaves says.
Only New Zealand Māori and their descendants can register for the Māori roll, and if a voter changes their mind once enrolled, they can only change rolls during the 'Maori Electoral Option', which is held every five years.
"And in local elections, if you're on the Māori roll and your local authority has a Māori ward or constituency, you have to vote for a candidate in the Māori ward," says Greaves.