Plans by the Labour Party to exclude foreign buyers from the housing market have sparked more calls for restrictions and warnings about the risk of damaging the country's relationships with its major trading partners.
Tony Alexander, BNZ chief economist, and David Whitburn, Auckland Property Investors Association president, recommend New Zealand fall into line internationally and impose measures aimed at restricting overseas purchases to cool the housing market - Alexander through a ban and Whitburn via a tax.
But both have raised the possibility of trade fallout, saying the debate in NZ is not going unnoticed overseas.
Australia, Britain, Singapore, Hong Kong and Canada all have measures to defend their housing stock against foreign buyers.
Labour leader David Shearer announced at the weekend his party proposed to exclude all overseas buyers, except Australians and foreigners building new homes, from the housing market and that we were unusual internationally in not having a capital gains tax, stamp duty or other restrictions. "We are effectively open for business," Shearer said.