Is pay going up or down? Both, or neither, depending on the measure you use. Photo: Getty
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Pay set is to go up, or down, or stay the same – it all depends on how you measure it

We are heading into a so-called “living standards election” – without accurate data on living standards. Different sides will be able to tell whatever story they want.

We can expect to hear an awful lot about the closing gap between pay and inflation over the next few months as, inevitably and thankfully, on some measure we close in on a “cross-over point” where wages overtake price rises.  

But this poses the question: which measure of inflation and, indeed, which measure of pay?

Confusion abounds on this – and this provides the space for different political parties to choose numbers which stand up the story they want to tell about the recovery and living standards. Get ready for a war of competing statistics.

When it comes to pay, average wages (that is, mean pay across the economy or, more accurately, across employees) regularly get reported as if they relate to the experience of a typical worker in the economy. They don’t – they are skewed by whatever is going on at the top of the distribution. For this reason we need to look at median pay – that of the typical worker. While the period since the financial crisis have been marked by relatively even movements in pay across the earnings distribution, the typical experience in recent decades has been for the mean to significantly outpace the median, reflecting growing wage inequality. No one knows for sure how this will pan out during economic recovery, but few would be surprised if the historic relationship resumes.

The trickier issue is the measure of inflation that should be used to deflate trends in wages. And here there is a bit of disarray. This debate may sound nerdy – indeed, it is quite nerdy – but it matters and we are going to hear a lot about all this, so it’s worth reflecting on.

The Retail Price Index (RPI), introduced after WWII,  was traditionally considered the best measure for gauging what was happening to living standards, covering a wider suite of prices (and generally being higher) than the CPI which was introduced in the 1990s to meet the need for international harmonisation. Recently RPI has fallen out of favour. The formula it uses for aggregating prices (the Carli index, if you are into this sort of thing) has been fairly widely criticised and is thought to overstate inflation, leading the ONS to deem that it no longer qualifies as a National Statistic (though that hasn’t stopped the government from continuing to use it in relation to index-linked gilts and bonds).

This has left CPI as the main reported measure for inflation and it is used for uprating benefits, tax credits, pensions and tax thresholds (the government switched from RPI to CPI for uprating benefits from April 2011 and in doing so made a massive saving). But unlike RPI, CPI takes no account of a range of housing costs, such as mortgage interest payments. Arguably, it tells us quite a lot less about living standards.

The controversy about how to measure inflation is such that the UK Statistics Authority has established two reviews including one by the IFS’s Paul Johnson looking specifically at the arguments for using ‘cost of living’ or ‘cost of goods’ concepts in defining inflation. The former concept is likely to have more relevance for households and for the purposes of deflating pay and incomes; the latter is likely to be more useful from a macroeconomic perspective. As things stand, the various measures used in the UK tend to fall somewhere between these two camps.

Just to complicate matters further, two new measures have been already introduced: CPI-H (which adds an owner occupied housing element to CPI) and RPI-J (which maintains the RPI coverage but uses a more reliable formula similar to CPI). But neither of these measures is used by the government in policy formulation so when it comes to official wage projections we are left with the traditional choice between CPI and RPI.

To see how important – and politically relevant – these different measures can be consider this chart.

Source: OBR, Economic and Fiscal Outllook; and Resolution Foundation modelling

The CPI-deflated mean (average) wage projection is taken directly from the OBR’s latest Economic and Fiscal Outlook. It looks pretty rosy in the years ahead – at least compared to the recent past – and has caught the eye of many economic commentators. But it only tells part of the story.

If we want to get a sense of what this might mean for median pay we can adjust the average (assuming, as discussed above, that the relationship between the mean and median over the next few years is the same as that in the decade prior to the financial crisis).

What the chart shows is that if we then adjust this median wage figure for RPI inflation then pay looks set to fall in the years ahead. But if we use CPI it’s set to rise. And if we try and find some middle ground that avoids the narrowness of CPI or the unreliability of RPI, then we could use an imputed projection for RPI-J. (This assumes – imperfectly, but defensibly – that past relationships hold: holding constant the ratio between annual growth in the RPI and RPI-J in the years ahead, reflecting the relative stability of this ratio over the course of the history of the RPI-J). And under this RPI-J measure, pay is set to flat-line. So according to which measure of inflation you use wages are set to rise. Or flat-line. Or fall. Take your pick.

For now, at least, this leaves us in no man’s land. We are heading into a so-called ‘living standards election’ in which different sides will be able to tell whatever story they want about the prospects for wages depending on the measures used (with no official ‘best measure’). Add to this the fact that when it comes to what is happening to household incomes – a far superior measure of living standards – the only accurate data will be more than two years out of date by polling day. Given that some of our key economic measures are misleading and others are out of date, the electorate should stand ready to be bamboozled. Is this really the best we can do?

Photo: Getty
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Theresa May's magic money tree is growing in Northern Ireland

Her £1bn deal with the DUP could make it even harder to push through cuts in the rest of the UK.

Going, going, gone...sold to the dark-haired woman from Enniskillen! Theresa May has signed a two-year deal with Arlene Foster, the DUP's leader, to keep her in office. The price? A cool £1bn and the extension of the military covenant to Northern Ireland.

The deal will have reverberations both across the United Kingdom and Northern Ireland specifically. To take the latter first – the amount spent in Northern Ireland in 2016/17 was just under £10bn. A five point increase in spending on health, education and roads is a fairly large feather in anyone's cap.

It transforms the picture as far as the fraught negotiations over restoring power-sharing goes. It increases the pressure on Sinn Féin to restore power-sharing so they can help decide exactly where the money goes. And if there's another election, it means that Arlene Foster goes into it not as the woman who oversaw the wasteful RHI scheme (a renewable energy programme that because of its poor drafting saw farmers paid to heat empty rooms) but as the negotiator who bagged an extra £1bn for Northern Ireland. 

Across the United Kingdom, the optics are less good for the (nominal) senior partner to the deal.

"May buys DUP support with £1 billion 'bung" is the Times"£1bn for DUP is 'just the start" is the Telegraph's splash, and their Scottish edition is worse: "Fury at 'grubby' deal with DUP". With friends like this, who needs the Guardian? (They've gone for "May hands £1bn bonanza to DUP to cling on at No 10" as their splash, FYI.) 

Not to be outdone, the Mirror opts for "May's £1bn bribe to crackpots" while the Scotsman goes for "£100 million per vote: The price of power".  Rounding off the set, the Evening Standard has mocked Foster up as Dr Evil and Theresa May as Mini-Me on its front page. The headline? "I demand the sum of....one billion pounds!"   

Of course, in terms of what the government spends, £1bn is much ado about nothing. (To put it in perspective, the total budget across the UK is £770bn or thereabouts, debt interest around £40bn, the deficit close to £76bn).

But only a few weeks ago Theresa May was telling a nurse that the reason she couldn't get a pay rise is that there is "no magic money tree". Now that magic money tree is growing freely in Northern Ireland. The Conservatives have been struggling to get further cuts through as it is – just look at the row over tax credits, or the anger at school cuts in the election – but now any further cuts in England, Scotland and Wales will rub up against the inevitable comeback not only from the opposition parties but the voters: "But you've got money to spend in Northern Ireland!"

(That £1bn is relatively small probably makes matters worse – an outlay per DUP MP that you might expect a world-class football club to spend on a quality player. It's tangible, rather like that £350m for the NHS. £30bn? That's just money.)

For Labour, who have spent the last seven years arguing, with varying degrees of effectiveness that austerity is a choice, it's as close to an open goal as you can imagine. Theresa May's new government is now stable – but it's an open question as to how long it will take her party to feel strong again.

Stephen Bush is special correspondent at the New Statesman. His daily briefing, Morning Call, provides a quick and essential guide to domestic and global politics.

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