If there's one sure thing about the coming election campaign, it's that voters will be bombarded with statistics about the cost of New Zealand Superannuation. Depending on who's talking, the numbers will aim to prove that Super is: a) an unsustainable and unfair burden on future taxpayers; or b) an entirely affordable gesture of support to our deserving senior citizens.
Meanwhile, expect much less noise about another expense which is bigger, growing just as inevitably, and promises to keep outstripping the cost of Super - healthcare.
Without getting bogged down in the statistical swamp, it's worth noting that Treasury projections have the cost of healthcare, as a percentage of economic activity, rising into the far-distant future, remaining ahead of the (also rising) cost of Superannuation.
Or, to quote from a 2013 Treasury report: "Since 1950, New Zealand's real per capita GDP has increased by 144 per cent, while real per capita government spending on healthcare has increased by 412 per cent. We think this trend will continue." While some politicians will debate the finer points of Superannuation policy, suggesting permutations of age limits, indexation, eligibility criteria and other esoterica, they have much less to say about reining in the cost of health.
That may be because, while Superannuation costs are seen as something we can control, rising health spending is regarded as the inevitable result of an ageing population. Or it may just be that politicians know there are no votes to be won by suggesting rationing access to healthcare.