It’s not going to happen, but it would be nice if the government focused on the real problems of affordability, which are not enough cheap land, high construction costs and low real wages.Of course, first home buyers would be willing to pay more for a house if the present discounted value of the expected loan servicing costs are lower, so the price of starter homes is bid up, which then feeds through into the price of all houses, so long as there remain supply constraints.
Somebody should tell Bill English that Don Brash likes the idea so that he'll dismiss it out of hand as too radical.