BNZ's chief executive has apologised on behalf of the bank for the "more inflammatory" comments made by his chief economist.
Tony Alexander, BNZ's chief economist, sparked debate after penning a newsletter, sent to subscribers, that said young people shouldn't blame Baby Boomers for house prices - and should cut down on coffees to help finance their first purchase.
After media reports and a backlash from some on social media, BNZ's chief executive Anthony Healy said he did not support all of the comments made by Alexander.
"I don't support Tony's [references] to meth houses etc, not helpful, but point is we have a housing affordability crisis so debate on baby boomers vs gen Y doesn't help," Healy wrote on Twitter.
"We need joined-up solutions from council, govt, private sector and NFP's, and yes, I apologise, on behalf of BNZ, for Tony's more inflammatory remarks."