How to Cope with Persistent Inflation

Why should you worry?

The latest cut in the UK bank rate to 4% has left it not far above the inflation rate (CPI was running at 3.6% in June) – for a 40% tax payer able to hypothetically get 4% on savings (it makes the calculation easy). The after-tax return of 2.4%, therefore, represents an implied negative real return on savings of 1.2% per year. While admittedly an unlikely outcome, if the Monetary Policy Committee’s projection that CPI will fall to 2.7% in a year is accurate then 4% would still imply a negative real return; and by that time and with that outcome the MPC would have cut rates further.

Cash is useful as a buffer. It is useful as a match for liabilities falling due soon, and it is useful to take advantage of future buying opportunities. Indeed, the senior partner of one fund management group – trying to calm his team in the face of a severe bout of market jitters – suggested that they make their way to Sotheby’s or Christie’s, and probably took advantage of the lack of bidders.  

Inflation - some general considerations 

Inflation has been a permanent feature of the UK economy since WW2- it has broadly suited governments as it has eroded debts. The long term trajectory was a steady increase, with a period in the 1970s when it got out of control, and a recent acceleration around the Ukraine invasion: showing the RPI rate in log scale shows the rate of change:

There are, alas, reasons to fear that higher inflation is becoming embedded in the UK, and possibly in the West more generally. Jonathan Ruffer’s neat summary is that “globalisation lowered prices and thereby lowered inflation, and a return to local production reverses that dynamic”. Actually, globalisation has unleashed a long-term inflationary problem for countries with weak productivity as autarkic trading policies increase the prices of natural resources, strategic materials, and components in real terms for those countries decreasingly able to produce their own or pay for those coming from elsewhere. For example, the UK has: choked off hydrocarbon production without successfully tackling demand, reduced food production, failed to develop a domestic chip making capacity, and is driving the pharmaceutical industry offshore.

The UK’s perennial trade deficit is no longer so readily funded by inward investment as formerly. With high taxes and increasingly restrictive labour rules, the UK is not looking like an attractive place to invest. Sterling’s long-term depreciation seems likely to resume at some stage, importing price pressures. The inflationary situation is worsened by the paradox of a tight labour market with low unemployment, but a disproportionately high inactivity rate, loading costs onto those in work and keeping pressures on pay rates up.  

Inflation - what if the Bank of England no longer cares? 

Experienced Bank of England watchers, such as Andy Sentance (late of the MPC), have pointed out that the 7 August vote for a rate cut, unusually, and possibly uniquely, pitted the Governor of the Bank, Andrew Bailey, against his Chief Economist and his deputy, who both voted for no change. Their concerns included persistent inflationary pressures (presumably wages growing at 5%, services prices 4.7%, and inflation expectations in some quarters as high as 4%, must all have been in focus). The commentators’ deduction is that despite its mandate to maintain inflation at or below 2%, Bank policy has now shifted towards trying to boost growth despite the inflationary pressures, in order to take pressure off the Chancellor. There is no doubt that the Bank has succumbed to political pressure before – arguably when it kept rates low for far longer than necessary with QE. It seems to be happening again.  Political pressures are also very evident in the USA where President Trump would clearly like to force the Fed into pursuing a low interest rate policy irrespective of inflation.

How Inflation hurts your Wealth

It can be useful to look at a concrete example. According to GiltsYield.com, if inflation runs at 2% a £100,000 lump sum invested in a laddered portfolio of conventional gilts will deliver to a 40% taxpayer an inflation-adjusted return of £5,784/year over a 20 year period (leaving nothing at the end). If inflation runs at 4% the return is £4,482/year, or 23% less. The risks are in the early years. A 2% overshoot in inflation at the beginning of the period reduces the value of the entire income stream, while a 2% overshoot at the end only the last year’s payment.  

Safe as Houses?

The conventional wisdom is that housing in the UK is an inflation-proof investment. But the evidence is that it isn’t so. The attached chart shows UK average house prices (from the Nationwide survey) vs RPI over 40 years to 2024:

The two sustained periods in which house prices outperformed inflation were the early years of the Thatcher administration, as income tax fell and domestic rates were removed, and under the Blair administration, though already peaking before the Global Financial Crisis. Through the last fifteen years, despite super-low interest rates and demographic pressures, there’s been no consistent trend. Housing is a complex market- London has its own dynamics, for example, currently unfavourable ones. Houses are an asset that can’t be moved offshore, and are an obvious target for a tax-hungry exchequer.

Equities as a Hedge

Over recent decades, and indeed over the long-term, equities have outpaced inflation. Long-term studies from Barclays and Cambridge Associates suggest real average compound returns for UK equities over rolling 50-year periods of between 2% and 8%, trending around 5%. Super-long periods may be useful for institutions and endowments, but less so for individuals – absent a fix for mortality. The early 1970s in the UK saw inflation, which was driven in part by the oil shock and exacerbated by domestic wage pressures, having a disastrous effect on the stock market. Inflation combined with economic stagnation (or stagflation) played havoc with corporate profitability as cost increases outran the ability of companies to pass on price increases, and they were simultaneously hit with higher interest rates.  

The health warning “past performance is not indicative of future results” should always be born in mind. Still, equity selection with a focus on sectors with good pricing power, and on countries with good levels of underlying growth and improving terms of trade, should provide protection.  

Direct Inflation Hedges - Index-linked Gilts and TIPS 

There are two bond markets which offer a liquid market in inflation-linked bonds – gilts and US Treasuries. Roughly a quarter of the gilts market comes in index-linked form, and there is an extensive choice of maturities, such that it is possible to build a laddered portfolio of “linkers”. The US treasury market is not so extensive relatively (under 10% of the market), though huge in absolute terms. The longest maturities issued are 30-year terms. There are some technical differences in the way they are priced but, as things stand, the major difference for a UK private investor is that the inflation-linked increase in the bond’s price over time is not (for now at least) subject to capital gains tax (the exemption, laid out in for example in this HMRC guidance note, does not of course apply to TIPS).  

Real yields are calculated for “linkers”. These correspond to the inflation-adjusted return (and can be further adjusted for the anticipated tax on the coupon, albeit for most the coupon is relatively low).  

Index-linked gilts are needlessly hard to deal in, due in part to the way they are priced. Both the principal and the interest are adjusted twice a year to take account of the change in the Retail Price Index. However, the nominal amount of the gilt does not change, instead the adjustment is treated like accrued interest, and is calculated as an additional charge. Except that is for two issues which do adjust(…just to make life more complicated). This can, in some cases, particularly with issues that have been outstanding for some years and have already accumulated a large inflation adjustment, be a multiple of the nominal amount. The 1.25% gilt issued in 2006 and maturing in November 2027 is quoted with a “clean” price of £101.65 – in addition (as with any gilt) you would pay the accrued interest of 49p – but also a large RPI adjustment that takes the dirty price up to £211.49! 

As a further complication, linkers can be adversely affected by weakness in the conventional bond market – this was certainly the case in the period of the Truss/Kwarteng sell-off. All that said, if you want to hedge a longer term sterling liability, they are the only way to do it.  

Having offered up a preliminary mixture of confusion, we shall be returning to the topic later in the year.  

Laddered Portfolios and Linkers 

What is worth saying at this stage is that the logical use for these gilts is at the more distant end of a laddered portfolio. For maturities up to three years, we continue to suggest that LGB-sponsored MTNs should be an important part of your portfolio. At present, gilt yields in maturities up to five years are clustered below 4%. Beyond that, a mix of corporate bonds and conventional gilts yield in excess of 5% are available with a 14 year maturity. But, to protect the long term value of a portfolio, linkers come into play.