Yesterday one of the Labour’s surrogates – Craig Renney, economist at the CTU, but also former adviser to the Minister of Finance (and reputed to be interested in being a Labour MP himself) – came out with a short document attempting to put a fiscal frame around National’s election promises. (One might have thought that if you’d been a part of enabling an $11bn hole in the government finances – the LSAP losses – you might have been a bit more modest in your rhetorical tone, but I guess he was only a (very senior) adviser).
It is explicitly partisan political in nature, and heavy on rhetoric. The flavour is perhaps conveyed by the front cover

As anything other than partisan spin though, it was a strange document. I’m as keen as anyone to see National’s programme (with numbers), but then in a week when the PM has been going round distinguishing between Labour Party policy and government policy, the same could be said of Labour’s (as yet largely unannounced) programme.
Renney’s document is built around an attempt to show that what National has announced so far does not fit within the operating allowances for the next three Budgets set down by the Minister of Finance in this year’s Budget. I have no reason to doubt that his numbers are approximately right. But (not only is it not clear that National has yet announced all its policies) there is no obvious reason why National would regard itself as bound by the operating allowances the Labour Minister of Finance had put in his pre-election budget. After all, Labour hasn’t in the past, and is highly unlikely to do so next year were it to be re-elected. (The operating allowance framework is in any case quite badly flawed as any sort of future signal, but especially when inflation is jumping around.)
I’m not championing what we know of either side’s fiscal policy. From both sides, there seems to be a disconcerting falling away from a commitment to budget surpluses, except in that vague distant future sense of the early St Augustine (“Lord, give me continence and chastity, but not yet”).
But Labour’s own (official government) numbers already have about them a considerable air of unrealism. In this year’s Budget, the only hard numbers – those planned for 23/24 – showed a slight increase in core Crown primary spending (ie excluding finance costs) as a share of GDP, but then the vapourware numbers – the ones relying on those operating allowances – show a fall from 31.2 per cent of GDP this year to 29.7 per cent in 2026/27. Another way of looking at those same numbers is to calculate – all from Budget numbers – real per capita core Crown primary spending over those three years Renney focuses on. On Labour government numbers, real per capita expenditure is projected/planned to show no growth at all in the next three years. Does that seem like a prospect that would align with what we’ve seen of this government’s approach to spending in recent years (in an era of ageing populations, public sector wage pressures etc)? Not to me. And the last three years have seen a single party government, and on all the polls if Labour were to get back in it would be dependent on the even less fiscally disciplined, less inclined to expenditure restraint, Green and Maori parties. With a Labour leader who has already ruled out the wealth taxes those two parties favour to help pay for their fiscal ambitions.
There is also the small matter of scale. Renney’s claims are that there is a gap of $3.3-$5.2 billion over the three fiscal years in questions. Since core Crown primary spending over those years is estimated at in excess of $400 billion any such gap is 1 per cent spending (or about 0.3 per cent of GDP). Seems a slim basis for such florid headlines.
But it will be good to see National’s numbers. In a better world, they would be credibly showing a commitment to a structural fiscal surplus next year. But given that Labour’s vapourware tiny surplus the following year was looking shaky from day 1 (once Eric Crampton pointed out the tobacco excise tax losses they and Treasury had accidentally left out) I don’t suppose it is likely.
But no doubt Renney’s report achieved its political end and put National and Willis on the back foot for a news cycle. National’s response didn’t seem much better. It seemed to consist first of suggesting that the economist of the CTU shouldn’t be commenting in public, which was a bit odd to say the least. And then we had the attempt to reclaim the news cycle by suggesting that it all (what?) was down to Grant Robertson not having followed through on the earlier plan to set up a budget-costing unit. National had (rightly in my view, see below) opposed the idea of such a unit when Labour and the Greens were championing it, but apparently when Willis had become finance spokesperson she had written to Robertson to express National now being in favour. Nothing had happened in the intervening year or so.
I wrote a lot about the idea of a policy costing unit here pre-Covid when the idea was being worked up by the government and The Treasury (there was a formal consultation process at one point). My most recent post on the issue was here. I ended that post with this thought
It won’t improve policymaking, it won’t change the character of elections, but it might – at the margin – create a few more jobs for economists.
I remain staunchly opposed. This was an extract from a submission to the Treasury consultation
Parties have adequate incentives already to make the case for their policies, in whatever level of detail the political (voter) market demands, and… already have access to the Parliamentary Library resources, parliamentary questions, and Official Information Act requests. A policy costing office – not found in any small OECD country – would be, in effect, just a backdoor route to more state funding of parties (and not necessarily an efficient route – bulk funding would be preferable if state funded was to be more extensively adopted). It also reflects a “inside the Beltway” conceit that specific costings are highly important, and that use of a single “model” or set of analysts somehow puts everyone on equal footing (it doesn’t – public service analysts having their own embedded assumptions about what is important, what behaviours are sensitive to what levers etc.) With the possible exception of the Netherlands, I’m not aware of any country where a political costings office products plays any material or sustained role in election campaigns and outcomes.
Here was the list of other reasons from that 2019 post
I’ve listed most of my objections previously, but just quickly:
- there isn’t an obvious gap in the market. At present, political parties produce costings (sometimes reviewed by independent experts) to the extent they judge it to be in their own interests to do so. Voters, in turn, can judge whether the presence or absence of any costings, or any debate around them, matters much. Existing parliamentary parties have access to considerable taxpayer resources which they can draw on to develop and test policy proposals,
- it isn’t obvious when, if ever, a New Zealand election in at least the last fifty years has turned on the presence, absence, quality (or otherwise) of election costings. It is a technocratic conceit to suppose otherwise: people vote for parties for all sorts of reasons (values, mood affiliation, fear/hope, being sick of the incumbent, trust (or otherwise)) which have little or nothing to do with specific policy costings,
- the relevance of specific policy costings (and indeed overall fiscal plans) is even less under MMP than it was in years gone by. Party promises are now little more than opening bids, as coalitions of support are put together after the election to govern (and on almost every specific piece of legislation). We simply aren’t in a world where a few dominant ministers dominate a Cabinet which in turn has a majority (or near so) in the government caucus, which in turn has an unchallenged majority in Parliament,
- the “fiscal hole” argument (from the 2017 campaign) remains an utter straw man in this context. First, when Steven Joyce made his claims in 2017 lots of people, including experienced ex-Treasury officials, weighed in voluntarily, and debate ensued about whether, and in what sense, Joyce was saying something important. The system – open scrutiny and debate – worked. And, secondly, a policy costings unit – of the sort the government apparently envisages – would not have made any useful contribution to such a debate, which was about the overall implications of Labour’s fiscal plans, not about the costs of specific proposals Labour was putting forward. Elections are messy things – always were and probably always will be, and that isn’t even necessarily a bad thing.
- some of the arguments made for a policy costings unit might have more traction if, somehow, every political party and candidate could be forced to use it (say, submit all campaign promises to the costings unit at least three months prior to an election, with the costings unit issuing a report on all of them say at least one month prior to an election). But even if you thought that might be a good model, it isn’t going to happen (and there is no credible way that such a model could be enforced). Instead, the proposed costings unit will be used when it suits parties, and not when it doesn’t, and will probably be most heavily used by parties that are (a) small, (b) cash-strapped, and (c) like to present themselves as policy-geeky. The Greens, for example. One might add that the unit would most likely be used by parties that believe their own mindset is most akin to that of those staffing the unit – likely to be a bunch of active-government instinctively centre-left public servants. Embedded assumptions can matter a lot – The Treasury used to generate wildly over-optimistic revenue estimates for a capital gains tax, and it was probably no coincidence that as an agency they supported such a tax.
- the policy costings unit seems, in effect, to largely represent more state-funding for (established) political parties. That might appeal to some, but even if you thought more state funding was a good idea (and I don’t) it isn’t obvious why this particular form of delivery is likely to be the best or the most efficient. Money might be better spent on research and policy development (say) rather than “scoring” at the end of the process, for detailed plans that will almost inevitable change before they are ever legislated. And if we want to spend more on policy scrutiny, I reckon a (much) stronger case could be made for better-resourcing parliamentary select committees.
- the interim proposal for next year’s election would enable only parties already in Parliament to utilise the facility. Again, this has the effect of further entrenching the advantage established parties have in our system (I hope it will be re-thought when the legislation itself is considered).
- practicalities matter: there probably won’t be much demand on a policy costings unit in the year after an election, and could be quite a bit in the year prior to one. How then will be unit be staffed and a critical mass of expertise maintained? If people are seconded in from government agencies, would we really have an independence (including of mindset and model) at all? And costings skills aren’t readily substitutable with bigger-picture fiscal policy (or macro policy) analysis skills.
- the lack of transparency around the proposed institution should be deeply concerning. As far as I’m aware there has not yet been any indication as to whether the policy costings unit would be subject to the OIA (as the Auditor-General and Ombudsman are not, and nor is Parliament more generally). The Minister of Finance has indicated that any costings the unit did would only be released with the consent of the political party seeking the costings. That should be a major red flag. In my view, any new unit should be (a) explicitly under the OIA, and (b) the enabling legislation should require that any costings done for political parties should automatically be released 20 working days after being delivered to the relevant political party (or more quickly if the costing is delivered within 20 days of an election). A policy costings unit should not be a research resource for political parties – the only possible basis for confidentiality – but a body that at the end of the process provides estimates based on the details the relevant party has submitted. (As I understand the system in Australia, costings provided during the immediate pre-election period are automatically released, but others are not.)
The fourth bullet there – re the 2017 “fiscal hole” debates – is germane to Willis’s claims in the last 24 hours. The sort of policy costings unit that has been proposed costs specific policy proposals, but does not provide reports on the coherence or otherwise of overall fiscal strategies. The presence of such a unit would have made no obvious difference to anything about the furore around the CTU report.
From a more narrowly political perspective, one might also note that if National is really championing this new source of employment opportunities for economists, and (which is what it is) additional state funding for political parties, it isn’t a great signal of the seriousness of their commitment to fiscal restraint. Renney might, after all, have the beginnings of a point.
Incidentally, in this rather silly political debate, Grant Robertson emerges no better than anyone else. He is reported as having said that National’s change of heart on a policy costings unit had meant it was too late to have done anything for the 2023 election. Except that he himself in 2019, announcing the new policy costings unit policy Cabinet had just agreed to about a year out from the 2020 election, explicitly announced a transitional non-statutory arrangement for the 2020 election, pending full establishment in 2021. If Willis’s change of heart was a year or more back, presumably the same could have been done this year. (I’m glad he didn’t of course.)
Finally, I have seen this morning at least one commentary suggesting that independent fiscal institutions are now the way of the world, the OECD champions them etc. A policy costing unit is not really what most countries – or international agencies – have in mind in advocating such institutions, which are typically more about independent monitoring and reporting on government fiscal strategy and policy (ie macro in focus). Very few countries have state-funded policy costings units, none of them small and (by advanced country standards) relatively poor.