To finance budget deficits, governments have to borrow. They can borrow short-term by issuing Treasury bills, typically for 1, 3 or 6 months. These do not earn interest and hence are sold at a discount below the face value. The rate of discount depends on supply and demand and will reflect short-term market rates of interest. Alternatively, governments can borrow long-term by issuing bonds. In the UK, these government securities are known as ‘gilts’ or ‘gilt-edged securities’. In the USA they are known as ‘treasury bonds’, ‘T-bonds’ or simply ‘treasuries’. In the EU, countries separately issue bonds but the European Commission also issues bonds.
In the UK, gilts are issued by the Debt Management Office on behalf of the Treasury. Although there are index-linked gilts, the largest proportion of gilts are conventional gilts. These pay a fixed sum of money per annum per £100 of face value. This is known as the ‘coupon payment’ and the rate is set at the time of issue. The ‘coupon rate’ is the payment per annum as a percentage of the bond’s face value:
Payments are made six-monthly. Each issue also has a maturity date, at which point the bonds will be redeemed at face value. For example, a 4½% Treasury Gilt 2028 bond has a coupon rate of 4½% and thus pays £4.50 per annum (£2.25 every six months) for each £100 of face value. The issue will be redeemed in June 2028 at face value. The issue was made in June 2023 and thus represented a 5-year bond. Gilts are issued for varying lengths of time from 2 to 55 years. At present, there are 61 different conventional issues of bonds, with maturity dates varying from January 2024 to October 2073.
Bonds can be sold on the secondary market (i.e. the stock market) before maturity. The market price, however, is unlikely to be the coupon price (i.e. the face value). The lower the coupon rate relative to current interest rates, the less valuable the bond will be. For example, if interest rates rise, and hence new bonds pay a higher coupon rate, the market price of existing bonds paying a lower coupon rate must fall. Thus bond prices vary inversely with interest rates.
The market price also depends on how close the bonds are to maturity. The closer the maturity date, the closer the market price of the bond will be to the face value.
Bond yields: current yield
A bond’s yield is the percentage return that a person buying the bond receives. If a newly issued bond is bought at the coupon price, its yield is the coupon rate.
However, if an existing bond is bought on the secondary market (the stock market), the yield must reflect the coupon payments relative to the purchase price, not the coupon price. We can distinguish between the ‘current yield’ and the ‘yield to maturity’.
The current yield is the coupon payment as a percentage of the current market price of the bond:
Assume a bond were originally issued at 2% (its coupon rate) and thus pays £2 per annum. In the meantime, however, assume that interest rates have risen and new bonds now have a coupon rate of 4%, paying £4 per annum for each £100 invested. To persuade people to buy old bonds with a coupon rate of 2%, their market prices must fall below their face value (their coupon price). If their price halved, then they would pay £2 for every £50 of their market price and hence their current yield would be 4% (£2/£50 × 100).
Bond yields: yield to maturity (YTM)
But the current yield does not give the true yield – it is only an approximation. The true yield must take into account not just the market price but also the maturity value and the length of time to maturity (and the frequency of payments too, which we will ignore here). The closer a bond is to its maturity date, the higher/lower will be the true yield if the price is below/above the coupon price: in other words, the closer will the market price be to the coupon price for any given market rate of interest.
A more accurate measure of a bond’s yield is thus the ‘yield to maturity’ (YTM). This is the interest rate which makes the present value of all a bond’s future cash flows equal to its current price. These cash flows include all coupon payments and the payment of the face value on maturity. But future cash flows must be discounted to take into account the fact that money received in the future is worth less than money received now, since money received now could then earn interest.
The yield to maturity is the internal rate of return (IRR) of the bond. This is the discount rate which makes the present value (PV) of all the bond’s future cash flows (including the maturity payment of the coupon price) equal to its current market price. For simplicity, we assume that coupon payments are made annually. The formula is the one where the bond’s current market price is given by:
Where: t is the year; n is the number of years to maturity; YTM is the yield to maturity.
Thus if a bond paid £5 each year and had a maturity value of £100 and if current interest rates were higher than 5%, giving a yield to maturity of 8%, then the bond price would be:
In other words, with a coupon rate of 5% and a higher YTM of 8%, the bond with a face value of £100 and five years to maturity would be worth only £88.02 today.
If you know the market price of a given bond, you can work out its YTM by substituting in the above formula. The following table gives examples.
The higher the YTM, the lower the market price of a bond. Since the YTM reflects in part current rates of interest, so the higher the rate of interest, the lower the market price of any given bond. Thus bond yields vary directly with interest rates and bond prices vary inversely. You can see this clearly from the table. You can also see that market bond prices converge on the face value as the maturity date approaches.
Recent activity in bond markets
Investing in government bonds is regarded as very safe. Coupon payments are guaranteed, as is repayment of the face value on the maturity date. For this reason, many pension funds hold a lot of government bonds issued by financially trustworthy governments. But in recent months, bond prices in the secondary market have fallen substantially as interest rates have risen. For those holding existing bonds, this means that their value has fallen. For governments wishing to borrow by issuing new bonds, the cost has risen as they have to offer a higher coupon rate to attract buyers. This make it more expensive to finance government debt.
The chart shows the yield on 10-year government bonds. It is calculated using the ‘par value’ approach. This gives the coupon rate that would have to be paid for the market price of a bond to equal its face value. Clearly, as interest rates rise, a bond would have to pay a higher coupon rate for this to happen. (This, of course, is only hypothetical to give an estimate of market rates, as coupon rates are fixed at the time of a bond’s issue.)
Par values reflect both yield to maturity and also expectations of future interest rates. The higher people expect future interest rates to be, the higher must par values be to reflect this.
In the years following the financial crisis of 2007–8 and the subsequent recession, and again during the COVID pandemic, central banks cut interest rates and supported this by quantitative easing. This involved central banks buying existing bonds on the secondary market and paying for them with newly created (electronic) money. This drove up bond prices and drove down yields (as the chart shows). This helped support the policy of low interest rates. This was a boon to governments, which were able to borrow cheaply.
This has all changed. With quantitative tightening replacing quantitative easing, central banks have been engaging in asset sales, thereby driving down bond prices and driving up yields. Again, this can be seen in the chart. This has helped to support a policy of higher interest rates.
Problems of higher bond yields/lower bond prices
Although lower bond prices and higher yields have supported a tighter monetary policy, which has been used to fight inflation, this has created problems.
First, it has increased the cost of financing government debt. In 2007/8, UK public-sector net debt was £567bn (35.6% of GDP). The Office for Budget Responsibility forecasts that it will be £2702bn (103.1% of GDP in the current financial year – 2023/24). Not only, therefore, are coupon rates higher for new government borrowing, but the level of borrowing is now a much higher proportion of GDP. In 2020/21, central government debt interest payments were 1.2% of GDP; by 2022/23, they were 4.4% (excluding interest on gilts held in the Bank of England, under the Asset Purchase Facility (quantitative easing)).
In the USA, there have been similar increases in government debt and debt interest payments. Debt has increased from $9tn in 2007 to $33.6tn today. Again, with higher interest rates, debt interest as a percentage of GDP has risen: from 1.5% of GDP in 2021 to a forecast 2.5% in 2023 and 3% in 2024. What is more, 31 per cent of US government bonds will mature next year and will need refinancing – at higher coupon rates.
There is a similar picture in other developed countries. Clearly, higher interest payments leave less government revenue for other purposes, such as health and education.
Second, many pension funds, banks and other investment companies hold large quantities of bonds. As their price falls, so this reduces the value of these companies’ assets and makes it harder to finance new purchases, or payments or loans to customers. However, the fact that new bonds pay higher interest rates means that when existing bond holdings mature, the money can be reinvested at higher rates.
Third, bonds are often used by companies as collateral against which to borrow and invest in new capital. As bond prices fall, this can hamper companies’ ability to invest, which will lead to lower economic growth.
Fourth, higher bond yields divert demand away from equities (shares). With equity markets falling back or at best ceasing to rise, this erodes the value of savings in equities and may make it harder for firms to finance investment through new issues.
At the core of all these problems is inflation and budget deficits. Central banks have responded by raising interest rates. This drives up bond yields and drives down bond prices. But bond prices and yields depend not just on current interest rates, but also on expectations about future interest rates. Expectations currently are that budget deficits will be slow to fall as governments seek to support their economies post-COVID. Also expectations are that inflation, even though it is falling, is not falling as fast as originally expected – a problem that could be exacerbated if global tensions increase as a result of the ongoing war in Ukraine, the Israel/Gaza war and possible increased tensions with China concerning disputes in the China Sea and over Taiwan. Greater risks drive up bond yields as investors demand a higher interest premium.
Information and data
- Why do bond prices and bond yields vary inversely?
- How are bond yields and prices affected by expectations?
- Why are ‘current yield’ and ‘yield to maturity’ different?
- What is likely to happen to bond prices and yields in the coming months? Explain your reasoning.
- What constraints do bond markets place on fiscal policy?
- Would it be desirable for central banks to pause their policy of quantitative tightening?
On 23 September, the new Chancellor of the Exchequer, Kwasi Kwarteng, announced his mini-Budget. It revealed big tax-cutting plans with the aim of stimulating economic growth. See the blog From Reaganomics to Trussonomics for details. However, the announcement triggered a crisis of confidence in the markets. The government says the measures will kickstart economic growth, but with the tax cuts funded through extra government borrowing, markets have raised alarm over the plans, sending the pound plunging.
On Monday 26 September, traders in the UK awoke to see that the pound had fallen to the new lowest level on record against the dollar of $1.03. Although it came at a time when the markets expected the pound to weaken, the announcement pushed a fall in the pound beyond previous expectations. Concerns about where the extra money would come from to pay for the tax cuts were reflected in market movements. A weaker currency suggests investors’ faith in a country’s economic prospects is wavering.
What does a falling pound mean?
The pound’s value affects everyone – from shoppers to business owners and investors. The main impacts of the falling pound include:
- Higher prices. A fall in the value of the pound will increase the price of goods and services imported into the UK from overseas. When the pound is weak against the dollar, it costs more for companies in the UK to buy things such as food, raw materials or parts from abroad. Firms are likely then to pass on some or all those higher costs to their customers.
- Higher mortgage repayments. By increasing inflation, a falling pound is likely to push the Bank of England to raise interest rates to counter this. With two million people in the UK on a tracker or variable rate mortgage, monthly costs could increase substantially. Lenders are also likely to increase the rates charged on credit cards, bank loans or car loans.
- Further pressure on energy costs. The price of all of the gas that the UK uses is based on the dollar – even if the gas is produced in the UK. As oil prices are based on the dollar, petrol and diesel could also be more expensive for UK drivers as it costs more to be imported by fuel companies. Although the dollar price of oil has been falling in recent weeks, consumers are not likely to see the benefit at the pump due to the slide in the value of the pound.
- Stronger sales for UK firms who sell goods abroad. Some businesses in the UK could get a boost from a fall in the value of the pound. A cheaper pound makes it less expensive for people from around the globe to buy goods and services from British firms, making them more competitive.
- More expensive trips abroad. The plunge in the pound means that people’s holiday money won’t stretch as far, particularly for anyone planning a trip to the USA. The depreciation of the pound could also see airlines face sharply increased costs, with fuel and aircraft leases often denominated in dollars.
Threat to confidence
The Bank of England said a weaker outlook for the UK economy as well as a stronger dollar were putting pressure on sterling. However, market responses were clear that Kwarteng’s mini-Budget was threatening to undermine confidence in the UK. The pound plunged to its lowest since Britain went decimal in 1971, as belief in the UK’s economic management and assets evaporated.
By Tuesday 27 September, there were expectations that the Bank of England would have to raise interest rates to counter the extra spending in the mini-Budget. Economists from the City suggested the slump in the pound would not just force the Bank of England into raising rates at the next MPC announcement in November, but to intervene now by announcing an emergency interest rate rise to support the currency. This sent mortgage activity into a frenzy as brokers worked around the clock to help clients secure deals before lenders pulled their products or replaced them with more expensive ones. By the end of the week there were 40% fewer products available than before the mini-Budget.
The Bank of England
In August, the Bank predicted that the UK would go into recession, lasting some 15 months. It did so as it raised interest rates by the highest margin in 27 years (0.5 percentage points) in a bid to keep soaring prices under control. Higher interest rates can make borrowing more expensive, meaning people have less money to spend and prices will stop rising as quickly. The Bank of England is expected to raise interest rates by an even larger amount to combat the inflationary impact of the mini-Budget, as a weakening pound drives up costs of imports. The money markets are pricing a doubling of UK interest rates to more than 5% by next summer.
On Thursday 29 September the cost of government borrowing was rising to levels many economists thought were concerning. After the mini-Budget, the UK Debt Management Office, which borrows on behalf of the government by issuing new government bonds (‘gilts’), plans to raise an additional £72bn before next April, raising the financing remit in 2022/23 to £234bn. The investors in bonds are mainly large institutions, such as pension funds.
New bonds are issued at a fixed payment per annum based on the face value. If interest rates rise, then new bonds must pay a higher amount per annum to attract purchasers. Old bonds with a relatively low payment per year will fall in value. For example, if a £100 bond issued a while back paid £2 per annum (a nominal 2%) and interest rates on equivalent assets rose to 4%, the market price of the bond would fall to £50, as £2 per annum is 4% of £50. This percentage of the market price (as opposed to the face value) is known as the ‘yield’. With worries about the rise in government borrowing, bond prices fell and yields correspondingly rose. Investors were demanding much higher interest rates to lend to the UK government.
The Investment Director at JM Finn compared investing in government bonds to sloths, they’re low risk and typically don’t move. This is because lending to the UK is usually considered as an ultra-safe bet. However, some bonds fell in price by 20% in two days (26–28 September).
There was concern that the mini-Budget threatened the financial health of Britain’s biggest pensions and insurance companies, which together manage trillions of pounds of people’s cash. These companies hold large amounts of UK government bonds and the fall in their price was significantly reducing the value of their assets.
The Bank of England thus announced that it would step in to calm markets, warning that continued volatility would be a ‘material risk to UK financial stability’. The Bank would start buying government bonds at an ‘urgent pace’ to help push their price back up and restore orderly market conditions. It would set aside £65bn to buy bonds over 13 working days. It is hoped that the Bank’s action will now ease the pressure on pension funds and insurance companies.
But the purchase of bonds increases money supply. This was the process by which money supply was increased during periods of quantitative easing (QE). Increasing money supply, while helping to dampen the rise in interest rates and stabilise the financial markets, is likely to lead to higher inflation. The Bank of England had previously planned to do the opposite: to engage in quantitative tightening (QT), which involves selling some of the stock of (old) bonds which the Bank had accumulated during the various rounds of QE.
Despite the Bank of England’s action which helped to curb the fall in the sterling exchange rate, some analysts warned it could fall further and could even reach parity with the dollar. There are concerns that the Bank is simply firefighting, rather than being able to solve the wider problems. There is now growing pressure on the government to make clear the financial cost of its tax cuts and spending plans.
Criticism from the IMF
There has been widespread criticism of the government’s plan, with the International Monetary Fund warning on Tuesday 27 September that the measures were likely to fuel the cost-of-living crisis and increase inequality. The stinging rebuke from the IMF arrived at the worst moment for the UK government. The IMF works to stabilise the global economy and one of its key roles is to act as an early economic warning system. It said it understood the package aimed to boost growth, but it warned that the cuts could speed up the pace of price rises, which the UK’s central bank is trying to bring down. In an unusually outspoken statement, the IMF said the proposal was likely to increase inequality and add to pressures pushing up prices.
Mark Carney, the former Governor of the Bank of England also criticised the government, accusing them of ‘undercutting’ the UK’s key economic institutions. Mr Carney said that while the government was right to want to boost economic growth, ‘There is a lag between today and when that growth might come.’ He also criticised the government for undercutting various institutions that underpin the overall approach, including not having an OBR forecast.
What is next for the economy?
Before the announcement, the Bank had expected the economy to shrink in the last three months of 2022 and keep shrinking until the end of 2023. However, some economists believe the UK could already be in recession. The impacts of the mini-Budget have so far not alleviated fears of the UK diving into recession. However, the Governor of the Bank of England, Andrew Bailey, also warned that little could be done to stop the UK falling into a recession this year as the war in Ukraine continued. He added that it would ‘overwhelmingly be caused by the actions of Russia and the impact on energy prices’.
Despite the external pressures on the economy, it is clear that recent market activity has damaged confidence. The Bank has already said it will ‘not hesitate’ to hike interest rates to try to protect the pound and stem surging prices. Some economists have predicted the Bank of England will raise the interest rate from the current 2.25% to 5.75% by next spring.
The Bank’s action of emergency bond purchases helped provide Kwarteng with some respite from the financial markets after three days of turmoil, which included strong criticism of the mini-Budget from the International Monetary Fund, about 1000 mortgage products pulled and interest rates on UK government bonds hitting their highest level since 2008.
On 3 October, at the start of the Conservative Party annual conference, Kwarteng announced that the planned cut in the top rate of income tax from 45% to 40% would not go ahead. This showed that the government would change course if pressure was strong enough. That day, the sterling exchange rate against the dollar appreciated by around 0.5% to around $1.12.
But this was not enough. The pressure was still on the government. There were urgent calls from the House of Commons Treasury Select Committee to bring forward the government’s financial statement, which was not due until 23 November, by at least a month. The government was urged to publish growth forecasts as soon as possible to help calm the markets. In response, on 4 October the government agreed to bring the financial statement forward to late October along with the forecasts of its impacts from the OBR.
However, Truss and Kwarteng have so far resisted this pressure to bring analysis of their tax plans forward. They have refused independent analysis of their plans until more than six weeks after receiving them, despite more calls from Tory MPs for Downing Street to reassure the markets. The Prime Minister and Chancellor said they would only publish the independent forecasts on 23 November alongside a fiscal statement, despite them being ready on 7 October.
Longer term impacts
Amongst all the activity in the week following the mini-Budget, there are real concerns of the longer-term impacts the budget will have on the economy. Some experts predict that the lasting effects of the ‘mini’ Budget will be felt far beyond the trading floors. Large tax cuts the government claimed would boost growth have instead convinced markets the UK’s entire macroeconomic framework is under threat. Although this turmoil has been the short-term result, it’s important to step back and think about how the effects of this abrupt shift in economic policy will be felt far beyond the trading floors.
Sterling’s partial recovery a few days after the mini-Budget reflects an increased confidence that there will be a large interest rate rise coming on November 3. However, the bleak economic outlook has removed any fiscal headroom the government may have had. The largest tax cuts in five decades need funding, while spooking the markets means another £12.5bn a year added to the debt interest bill. However, Kwarteng remains committed to debt falling eventually.
It is estimated that there needs to be a fiscal tightening of around £37–£47bn by 2026/27. Even more could be required to ensure that tax revenues cover day-to-day spending or for even a small margin for error. Many have therefore called for a U-turn on the measures announced in the mini-Budget beyond abolishing the cut to the top rate of income tax. Performing a U-turn on some of the tax cuts would make the fiscal tightening much more achievable. However, it could be politically detrimental. Much lower taxes will mean less public spending. Some suggest that this trade-off was ignored when those tax cuts were announced, but market pressure has now put it centre stage.
The Prime Minister has since admitted that mistakes were made in the controversial ‘mini’ Budget that sparked market turmoil in the last week of September. However, a day before reversing the cut in the top rate of income tax, she said she would not retreat on her plan to deliver £45bn of unfunded tax cuts, insisting it would help deliver growth, but admitted: ‘We should have laid the ground better and I have learned from that.’
- Pound hits all-time low against dollar after mini-budget rocks markets
The Guardian, Graeme Wearden (26/9/22)
- The pound: Why is it falling?
BBC News, Tom Edgington (27/9/22)
- Falling pound: What does it mean for me and my finances?
BBC News, Lora Jones (28/9/22)
- Bank of England steps in to calm markets
BBC News, Daniel Thomas and Noor Nanji (29/9/22)
- Government is undercutting UK institutions, says former Bank governor
BBC News, Dearbail Jordan (30/9/22)
- Bank of England in £65bn scramble to avert financial crisis
The Guardian, Larry Elliott, Pippa Crerar and Richard Partington (28/9/22)
- From mini-budget to market turmoil: Kwasi Kwarteng’s week – video timeline
The Guardian, Elena Morresi and Monika Cvorak plus sources as credited (30/9/22)
- Truss and Kwarteng resist pressure to bring analysis of their tax plans forward
The Guardian, Rowena Mason and Aubrey Allegretti (30/9/22)
- Mark Carney accuses Truss government of undermining Bank of England
The Guardian, Kalyeena Makortoff (29/9/22)
- Lasting effects of ‘mini’ Budget will be felt far beyond the trading floors
The Times, Torsten Bell (1/10/22)
- ‘Big impact’: UK economic chaos, pound plunge hit businesses
ABC News, Sylvia Hui and Kelvin Chan (30/9/22)
- Bank of England bonds rescue has two ugly implications: more inflation and an even weaker pound
The Conversation, Costas Milas (30/9/22)
- Sterling hits all-time low: two things can turn this around but neither is straightforward
The Conversation, Jean-Philippe Serbera (26/9/22)
- Explain how the announced tax cut will stimulate economic growth.
- What is the impact of the weakened pound on UK households and businesses?
- Draw a diagram illustrating the way in which the $/£ exchange rate is determined.
- How is UK inflation likely to be affected by a depreciation of sterling?
- Are there any advantages of having a lower pound?
In her bid to become Conservative party leader, Liz Truss promised to make achieving faster economic growth her number-one policy objective. This would involve pursuing market-orientated supply-side policies.
These policies would include lower taxes on individuals to encourage people to work harder and more efficiently, and lower taxes on business to encourage investment. The policy would also involve deregulation, which would again encourage investment, both domestic and inward investment from overseas. These proposals echoed the policies pursued in the 1980s by President Ronald Reagan in the USA and Margaret Thatcher in the UK.
On September 23, the new Chancellor, Kwasi Kwarteng, presented a ‘mini-Budget’ – although the size of the changes made it far from ‘mini’. This, as anticipated, included policies intended to boost growth, including scrapping the 45% top rate of income tax, which is currently paid by people earning over £150 000 (a policy withdrawn on 3 October after massive objections), cutting the basic rate of income tax from 20% to 19%, scrapping the planned rise in corporation tax from 19% to 25%, scrapping the planned rise in national insurance by 1.25 percentage points, a cut in the stamp duty on house purchase and scrapping the limit placed on bankers’ bonuses. In addition, he announced the introduction of an unlimited number of ‘investment zones’ which would have lower business taxes, streamlined planning rules and lower regulation. The policies would be funded largely from extra government borrowing.
Theoretically, the argument is simple. If people do work harder and firms do invest more, then potential GDP will rise – a rise in aggregate supply. This can be shown on an aggregate demand and supply diagram. If the policy works, the aggregate supply curve will shift to the right. Real GDP will rise and there will be downward pressure on prices. In Figure 1, real GDP will rise from Y0 to Y1 and the price level will fall from P0 to P1. However, things are not as simple as this. Indeed, there are two major problems.
The first concerns whether tax cuts will incentivise people to work harder. The second concerns what happens to aggregate demand. I addition to this, the policies are likely to have a profound effect on income distribution.
Tax cuts and incentives
Cutting the top rate of income tax would have immediately given people at the top of the income scale a rise in post-tax income. This would have created a substitution effect and an income effect. Each extra pound that such people earn would be worth more in post-tax income – 60p rather than 55p. This would provide an incentive for people to substitute work for leisure as work is now more rewarding. This is the substitution effect. On the other hand, with the windfall of extra income, they now would have needed to work less in order to maintain their post-tax income at its previous level. They may well indeed, therefore, have decided to work less and enjoy more leisure. This is the income effect.
With the diminishing marginal utility of income, generally the richer people are, the bigger will be the income effect and the smaller the substitution effect. Thus, cutting the top rate of income tax may well have led to richer people working less. There is no evidence that the substitution effect would be bigger.
If top rates of income tax are already at a very high level, then cutting then may well encourage more work. After all, there is little incentive to work more if the current rate of tax is over 90%, say. Cutting them to 80% could have a big effect. This was the point made by Art Laffer, one of Ronald Reagan’s advisors. He presented his arguments in terms of the now famous ‘Laffer curve’, shown in Figure 2. This shows the total tax revenue raised at different tax rates.
If the average tax rate were zero, no revenue would be raised. As the tax rate is raised above zero, tax revenues will increase. The curve will be upward sloping. Eventually, however, the curve will peak (at tax rate t1). Thereafter, tax rates become so high that the resulting fall in output more than offsets the rise in tax rate. When the tax rate reaches 100 per cent, the revenue will once more fall to zero, since no one will bother to work.
If the economy were currently to the right of t1, then cutting taxes would increase revenue as there would be a major substitution effect. However, most commentators argue that the UK economy is to the left of t1 and that cutting the top rate would reduce tax revenues. Analysis by the Office for Budget Responsibility in 2012 suggested that t1 for the top rate of income tax was at around 48% and that cutting the rate below that would reduce tax revenue. Clearly according to this analysis, 40% is considerably below t1.
As far as corporation tax is concerned, the 19% rate is the lowest in the G20 and yet the UK suffers from low rates of both domestic investment and inward direct investment. There is no evidence that raising it somewhat, as previously planned, will cut investment. And as far as individual entrepreneurs are concerned, cutting taxes is likely to have little effect on the desire to invest and expand businesses. The motivation of entrepreneurs is only partly to do with the money. A major motivation is the sense of achievement in building a successful business.
Creating investment zones with lower taxes, no business rates and lower regulations may encourage firms to set up there. But much of this could simply be diverted investment from elsewhere in the country, leaving overall investment little changed.
To assess these questions, the government needs to model the outcomes and draw on evidence from elsewhere. So far this does not seem to have happened. They government did not even present a forecast of the effects of its policies on the public finances, something that the OBR normally presents at Budget time. This was one of the reasons for the collapse in confidence of sterling and gilts (government bonds) in the days following the mini-Budget.
Effects on aggregate demand
Cutting taxes and financing them from borrowing will expand aggregate demand. In Figure 1, the AD curve will also shift to the right and this will push up prices. Inflation is already a serious problem in the economy and unfunded tax cuts will make it worse. Higher inflation will result in the Bank of England raising interest rates further to curb aggregate demand. But higher interest rates, by raising borrowing costs, are likely to reduce investment, which will have a negative supply-side effect.
The problem here is one of timing. Market-orientated supply-side policies, if they work to increase potential GDP, will take time – measured in years rather than months. The rise in aggregate demand will be much quicker and will thus precede the rise in supply. This could therefore effectively kill off the rise in supply as interest rates rise, the exchange rate falls and the economy is pushed towards recession. Indeed, the mini-Budget immediately sparked a run on the pound and the exchange rate fell.
The rising government debt may force the government to make cuts in public expenditure. Rather than cutting current expenditure on things such as nurses, teachers and benefits, it is easier to cut capital expenditure on things such as roads and other infrastructure. But this will have adverse supply-side effects.
Effects on income distribution
Those advocating market-orientated supply-side policies argue that, by making GDP bigger, everyone can gain. They prefer to focus on the size of the national ‘pie’ rather than its distribution. If the rich initially gain, the benefits will trickle down to the poorest in society. This trickle-down theory was popular in the 1980s with politicians such as Margaret Thatcher and Ronald Reagan and, more recently, with Republican presidents, such as Goerge W Bush and Donald Trump. There are two problems with this, however.
The first, which we have already seen, is whether such policies actually do increase the size of the ‘pie’.
The second is how much does trickle down. During the Thatcher years, income inequality in the UK grew, as it did in the USA under Ronald Reagan. According to an IMF study in 2015 (see the link to the IMF analysis below), policies that increase the income share of the poor and the middle class do increase growth, while those that raise the income share of the top 20 per cent result in lower growth.
After the mini-Budget was presented, the IMF criticised it for giving large untargeted tax cuts that would heighten inequality. The poor would gain little from the tax cuts. The changes to income tax and national insurance mean that someone earning £20 000 per year will gain just £167 per year, while someone earning £200 000 will gain £5220. What is more, the higher interest rates and higher prices resulting from the lower exchange rate are likely to wipe out the modest gains to the poor.
- At a glance: What’s in the mini-budget?
BBC News (23/9/22)
- Mini-budget: What it means for you and your finances
BBC News, Kevin Peachey (23/8/22)
- Will this huge tax cutting gamble pay off?
BBC News, Faisal Islam (23/9/22)
- Kwasi Kwarteng faces U-turn on tax or spending cuts
BBC News, Faisal Islam (28/9/22)
- Nearly 300 UK mortgage deals pulled in a day as pound’s fall heralds rate rise
The Guardian, Zoe Wood (27/9/23)
- Rationale behind abolition of 45p tax rate reflects failed ideology
The Guardian, Arun Advani, David Burgherr and Andy Summers (29/9/23)
- The UK’s ‘Trussonomics’ crashes the pound and leaves investors shaking their heads
CNN, Allison Morrow (26/9/23)
- Mini budget: will Kwasi Kwarteng’s plan deliver growth?
The Conversation, Steve Schifferes (23/9/23)
- Only a U-turn by the government or the Bank of England will calm UK financial markets
The Conversation, Campbell Leith (28/9/22)
- IMF gives damning verdict on Britain’s tax cuts
CNBC, Hannah Ward-Glenton (28/9/23)
- Lasting effects of ‘mini’ Budget will be felt far beyond the trading floors
Today News, Torsten Bell (1/10/23)
- Causes and Consequences of Income Inequality: A Global Perspective
IMF Staff Discussion Notes, Era Dabla-Norris, Kalpana Kochhar, Nujin Suphaphiphat, Franto Ricka and Evridiki Tsounta (15/6/15)
- Mini-Budget response
Institute for Fiscal Studies, Stuart Adam, Isaac Delestre, Carl Emmerson, Paul Johnson, Robert Joyce, Isabel Stockton, Tom Waters, Xiaowei Xu and Ben Zaranko (23/9/22)
- Distinguish between market-orientated supply-side policies and interventionist ones. Consider the advantages and disadvantages of each.
- Explain why bond prices fell after the mini-Budget. What was the Bank of England’s response and why did this run counter to its plan for quantitative tightening?
- How might a tax-cutting Budget be designed to help the poor rather than the rich? Would this have beneficial supply-side effects?
- Find out about the 1972 tax-cutting Budget of Anthony Barber, the Chancellor in Ted Heath’s government, that led to the ‘Barber boom’ and then rampant inflation. Are there any similarities between the 1972 Budget and the recent mini-Budget?
Now here’s a gloomy article from Robert Peston. He’s been looking at investors’ views about the coming years and sees a general pessimism about the prospects for long-term economic growth. And that pessimism is becoming deeper.
It is true that both the UK and the USA have recorded reasonable growth rates in recent months and do seem, at least on the surface, to be recovering from recession. But, according to investor behaviour, they:
seem to be saying, in how they place their money, that the UK’s and USA’s current reasonably rapid growth will turn out to be a short-lived period of catch-up, following the deep recession of 2008-9.
So what is it about investor behaviour that implies a deep pessimism and are investors right to be pessimistic? The article explores these issues. It does also look at an alternative explanation that investors may merely be being cautious until a clearer picture emerges about long-term growth prospects – which may turn out to be better that many currently now predict.
The article finishes by looking at a possible solution to the problem (if you regard low or zero growth as a problem). That would be for the government to ‘throw money at investment in infrastructure – to generate both short-term growth and enhance long-term productive potential.’
Note that Elizabeth also looks at this article in her blog The end of growth in the west?.
The end of growth in the West? BBC News, Robert Peston (26/9/14)
- What is meant by the ’25-year yield curve for government bonds’? Why does this yield curve imply a deep level of business pessimism about the long-term prospects for UK economic growth?
- What are the determinants of long-term economic growth?
- Looking at these determinants, which ones suggest that long-term economic growth may be low?
- Are there any determinants which might suggest that economic growth will be maintained over the long term at historical levels of around 2.6%?
- Do demand-side policies affect potential GDP and, if so, how?
- What policies could government pursue to increase the rate of growth in potential GDP?
- What current ‘dramas’ affecting the world economy could have long-term implications for economic growth? How does uncertainty about the long-term implications for the global economy of such dramas itself affect economic growth?
- Is long-term growth in real GDP an appropriate indicator of (a) economic development and (b) long-term growth in general well-being?
The growth rates of the Western world have been somewhat volatile for the past decade, with negative growth sending economies into recession and then varying degrees of economic recovery. Growth rates elsewhere have been very high, in particular in countries such as China and India. The future of economic growth in the west is hotly debated and whether the western world has been forever changed by the credit crunch remains to be seen.
The article below from the BBC, written by Robert Peston, the Economics Editor, addresses the question of the future of the western world. Opinions differ as to whether the west is finally recovering from the recession and financial instability or if the credit crunch and subsequent recession is just the beginning of many years of economic stagnation. The article in particular focuses on the yield curve and the trends in government debt or gilts. This tends to be a key indicator of the expectations of the future of an economy and how confident investors are in its likely trajectory. Though technical in places, this article provides some interesting stances on what we might expect in the coming 2-3 decades for economic performance in the West.
Note that John also looks at this article in his blog Cloudy Skies Ahead?
The end of growth in the West? BBC News, Robert Peston (26/9/14)
- Which factors affect the economic growth of a nation?
- Confidence from consumers, firms and investors is always argued to be crucial to the future economic growth and in many cases, the recovery of an economy. Explain why this factor is so important.
- What is the yield curve and what does it show?
- How can the yield curve be used to offer predictions about the future strength of an economy?
- Why are governments seen as the safest place to lend?
- If Larry Summers is correct in saying that it is a negative equilibrium interest rate that is needed to generate full employment growth, what does this suggest about the future economic performance of the western world?
- In the article, there is a list of some of the key things that make investors anxious. Review each of these factors and explain why it is so important in generating anxiety.