World politicians, business leaders, charities and pressure groups are meeting in Davos at the 2022 World Economic Forum. Normally this event takes place in January each year, but it was postponed to this May because of Covid-19 and is the first face-to-face meeting since January 2020.
The meeting takes place amid a series of crises facing the world economy. The IMF’s Managing Director, Kristalina Georgieva, described the current situation as a ‘confluence of calamities’. Problems include:
- Continuing hangovers from Covid have caused economic difficulties in many countries.
- The bounceback from Covid has led to demand outpacing supply. The world is suffering from a range of supply-chain problems and shortages of key materials and components, such as computer chips.
- The war in Ukraine has not only caused suffering in Ukraine itself, but has led to huge energy and food price increases as a result of sanctions and the difficulties in exporting wheat, sunflower oil and other foodstuffs.
- Supply shocks have led to rising global inflation. This will feed into higher inflationary expectations, which will compound the problem if they result in higher prices and wages in response to higher costs.
- Central banks have responded by raising interest rates. These dampen an already weakened global economy and could push the world into recession.
- Global inequality is rising rapidly, both within countries and between countries, as Covid disruptions and higher food and energy prices hit the poor disproportionately. Poor people and countries also have a higher proportion of debt and are thus hit especially hard by higher interest rates.
- Global warming is having increasing effects, with a growing incidence of floods, droughts and hurricanes. These lead to crop failures and the displacement of people.
- Countries are increasingly resorting to trade restrictions as they seek to protect their own economies. These slow economic growth.
World leaders at Davos will be debating what can be done. One approach is to use fiscal policy. Indeed, Kristalina Georgieva said that her ‘main message is to recognise that the world must spend the billions necessary to contain Covid in order to gain trillions in output as a result’. But unless the increased expenditure is aimed specifically at tackling supply shortages and bottlenecks, it could simply add to rising inflation. Increasing aggregate demand in the context of supply shortages is not the solution.
In the long run, supply bottlenecks can be overcome with appropriate investment. This may require both greater globalisation and greater localisation, with investment in supply chains that use both local and international sources.
International sources can be widened with greater investment in manufacturing in some of the poorer developing countries. This would also help to tackle global inequality. Greater localisation for some inputs, especially heavier or more bulky ones, would help to reduce transport costs and the consumption of fuel.
With severe supply shocks, there are no simple solutions. With less supply, the world produces less and becomes poorer – at least temporarily until supply can increase again.
- Draw an aggregate demand and supply diagram (AD/AS or DAD/DAS) to illustrate the effect of a supply shock on output and prices.
- Give some examples of supply-side policies that could help in the current situation.
- What are the arguments for and against countries using protectionist policies at the current time?
- What policies could countries adopt to alleviate rapid rises in the cost of living for people on low incomes? What problems do these policies pose?
- What are the arguments for and against imposing a windfall tax on energy companies and using the money to support poor people?
- If the world slips into recession, should central banks and governments use expansionary monetary and fiscal policies?
The suffering inflicted on the Ukrainian people by the Russian invasion is immense. But, at a much lower level, the war will also inflict costs on people in countries around the world. There will be significant costs to households in the form of even higher energy and food price inflation and a possible economic slowdown. The reactions of governments and central banks could put a further squeeze on living standards. Stock markets could fall further and investment could decline as firms lose confidence.
Russia is the world’s second largest oil supplier and any disruption to supplies will drive up the price of oil significantly. Ahead of the invasion, oil prices were rising. At the beginning of February, Brent crude was around $90 per barrel. With the invasion, it rose above $100 per barrel.
Russia is also a major producer of natural gas. The EU is particularly dependent on Russia, which supplies 40% of its natural gas. With Germany halting approval of the major new gas pipeline under the Baltic from Russia to Germany, Nord Stream 2, the price of gas has rocketed. On the day of the invasion, European gas prices rose by over 50%.
Nevertheless, with the USA deciding not to extend sanctions to Russia’s energy sector, the price of gas fell back by 32% the next day. It remains to be seen just how much the supplies of oil and gas from Russia will be disrupted over the coming weeks.
Both Russia and Ukraine are major suppliers of wheat and maize, between them responsible for 14% of global wheat production and 30% of global wheat exports. A significant rise in the price of wheat and other grains will exacerbate the current rise in food price inflation.
Russia is also a significant supplier of metals, such as copper, platinum, aluminium and nickel, which are used in a wide variety of products. A rise in their price has begun and will further add to inflationary pressures and supply-chain problems which have followed the pandemic.
The effect of these supply shocks can be illustrated in a simple aggregate demand and supply diagram (see Figure 1), which shows a representative economy that imports energy, grain and other resources. Aggregate demand and short-run aggregate supply are initially given by AD0 and SRAS0. Equilibrium is at point a, with real national income (real GDP) of Y0 and a price index of P0.
The supply shock shifts short-run aggregate supply to SRAS1. Equilibrium moves to point b. The price index rises to P1 and real national income falls to Y1. If it is a ‘one-off’ cost increase, then the price index will settle at the new higher level and GDP at the new lower level provided that real aggregate demand remains the same. Inflation will be temporary. If, however, the SRAS curve continues to shift upwards to the left, then cost-push inflation will continue.
These supply-side shocks make the resulting inflation hard for policymakers to deal with. When the problem lies on the demand side, where the inflation is accompanied by an unsustainable boom, a contractionary fiscal and monetary policy can stabilise the economy and reduce inflation. But the inflationary problem today is not demand-pull inflation; it’s cost-push inflation. Disruptions to supply are both driving up prices and causing an economic slowdown – a situation of ‘stagflation’, or even an inflationary recession.
An expansionary policy, such as increasing bond purchases (quantitative easing) or increasing government spending, may help to avoid recession (at least temporarily), but will only exacerbate inflation. In Figure 2, aggregate demand shifts to AD2. Equilibrium moves to point c. Real GDP returns to Y0 (at least temporarily) but the price level rises further, to P2. (Click here for a PowerPoint of the diagram.)
A contractionary policy, such as raising interest rates or taxes, may help to reduce inflation but will make the slowdown worse and could lead to recession. In the diagram, aggregate demand shifts to AD3. Equilibrium moves to point d. The price level returns to P0 (at least temporarily) but real income falls further, to Y3.
In other words, you cannot tackle both the slowdown/recession and the inflation simultaneously by the use of demand-side policy. One requires an expansionary fiscal and/or monetary policy; the other requires fiscal and/or monetary tightening.
Then there are other likely economic stresses. If NATO countries respond by increasing defence expenditure, this will put further strain on public finances.
Sentiment is a key driver of the economy and prices. Expectations tend to be self-fulfilling. So if the war in Ukraine undermines confidence in stock markets and the real economy and further raises inflationary expectations, this pessimistic mood will tend in itself to drive down share prices, drive up inflation and drive down investment and economic growth.
- How will Russia’s invasion of Ukraine hit the global economy?
Financial Times, Chris Giles, Jonathan Wheatley and Valentina Romei (25/2/22)
- Ukraine conflict raises the possibility of stagflation
Financial Times, The Editorial Board (25/2/22)
- Five ways the Ukraine war could push up prices
BBC News, Laura Jones (5/3/22)
- Jason Furman cautions against reading too much into the initial market reactions to Russia’s invasion
interest.co.nz, Jason Furman (26/2/22)
- Putin’s war promises to crush the global economy with inflation and much slower growth
Market Watch, Nouriel Roubini (25/2/22)
- Roubini: 6 Financial, Economic Risks of Russia-Ukraine War
ThinkAdvisor, Janet Levaux (25/2/22)
- Fed tightening plans now contending with war, possible oil shock
Reuters, Howard Schneider and Jonnelle Marte (24/2/22)
- The invasion of Ukraine changed everything for Wall Street
CNN, Julia Horowitz (27/2/22)
- Why the Russian invasion will have huge economic consequences for American families
CNN, Matt Egan (24/2/22)
- European gas prices soar and oil tops $105 after Russia attacks Ukraine
Financial Times, Neil Hume, Emiko Terazono and Tom Wilson (24/2/22)
- Five essential commodities that will be hit by war in Ukraine
The Conversation, Sarah Schiffling and Nikolaos Valantasis Kanellos (24/2/22)
- Ukraine: ‘I’m surprised the oil price hasn’t hit US$130 a barrel yet’ – energy trading expert Q&A
The Conversation, Adi Imsirovic (25/2/22)
- Ukraine crisis: Warning UK energy bills could top £3,000 a year
BBC News, Michael Race (25/2/22)
- Putin’s energy shock: The economic realities of invasion
BBC News, Faisal Islam (25/2/22)
- Fears of UK food and fuel prices rising due to war
BBC News, Oliver Smith & Michael Race (26/2/22)
- Ukraine conflict: What is Swift and why is banning Russia so significant?
BBC News, Russell Hotten (27/2/22)
- Ukraine conflict: How reliant is Europe on Russia for oil and gas?
BBC News, Jake Horton & Daniele Palumbo (25/2/22)
- Ukraine crisis complicates ECB’s path to higher rates
Reuters, Francesco Canepa and Balazs Koranyi (24/2/22)
- Russia and the West are moving towards all out economic war
Al Jazeera, Maximilian Hess (24/2/22)
- If there is a negative supply shock, what will determine the size of the resulting increase in the price level and the rate of inflation over the next one or two years?
- How may expectations affect (a) the size of the increase in the price level; (b) future prices of gas and oil?
- Why did stock markets rise on the day after the invasion of Ukraine?
- Argue the case for and against relaxing monetary policy and delaying tax rises in the light of the economic consequences of the war in Ukraine.
Inflation has been rising around the world as a combination of a recovery in demand and supply-chain issues have resulted in aggregate demand exceeding aggregate supply. Annual consumer price inflation at the beginning of 2022 is around 2.5% in China, 3.5% in Sweden, 5% in the eurozone, Canada and India, 6% in the UK and South Africa, 7% in the USA and 7.5% in Mexico. In each case it is forecast to go a little higher before falling back again.
Inflation in Turkey
In Turkey inflation is much higher. The official annual rate of consumer price inflation in December 2021 was 36.1%, sharply up from 21.3% in November. But according to Turkey’s influential ENAGrup the December rate was much higher still at 82.8%. Official producer price inflation was 79.9% and this will feed through into official consumer price inflation in the coming weeks.
The rise in inflation has hit the poor particularly badly. According to the official statistics, in the year to December 2021, domestic energy prices increased by 34.2%, food by 44.7% and transport by 53.7%. In response, the government has raised the minimum wage by nearly 50% for 2022.
Causes of high and rising inflation
Why is Turkey’s inflation so much higher than in most developed and emerging economies and why has it risen so rapidly? The answer is that aggregate demand has been excessively boosted – well ahead of the ability of supply to respond. This has driven inflation expectations.
Turkey’s leader, President Erdoğan, in recent years has been seeking to stimulate economic growth through a mixture of supply-side, fiscal and monetary policies. He has hoped that the prospect of high growth would encourage both domestic and inward investment and that this would indeed drive the high growth he seeks. To encourage investment he has sought to reduce the reliance on imports through various measures, such as public procurement favouring domestic firms, tax reliefs for business and keeping interest rates down. He has claimed that the policy is focused on investment, production, employment and exports, instead of the ‘vicious circle of high interest rates and low exchange rates’.
With the pandemic, fiscal policy was largely focused on health, social security and employment measures. Such support was aided by a relatively healthy public finances. General government debt was 32% of GDP in 2020. This compares with 74% for the EU and 102% for the G7. Nevertheless, the worsening budget deficit has made future large-scale expenditure on public infrastructure, tax cuts for private business and other supply-side measures more difficult. Support for growth has thus fallen increasingly to monetary policy.
The Turkish central bank is not independent, with the President firing senior officials with whom he disagrees over monetary policy. The same applies to the Finance Ministry, with independently-minded ministers losing their jobs. Monetary and exchange rate policy have thus become the policy of the President. And it is here that a major part of the current problem of rising inflation lies.
Monetary and exchange rate policy
Despite rising inflation, the central bank has reduced interest rates. At its monthly meeting in September 2021, the Turkish central bank reduced its key rate from 19% to 18% and then to 16% in October, to 15% in November and 14% in December. These unprecedented rate cuts saw a large increase in the money supply. M1 rose by 11.7% in November alone; the annual growth rate was 59.5%. Broad money (M2 and M3) similarly rose. M3 grew by an annual rate of 51% in November 2021. The cut in interest rates and rise in money supply led to a rise in nominal expenditure which, in turn, led to higher prices.
The cut in interest rates and rise in nominal aggregate demand led to a large depreciation in the exchange rate. On 1 September 2021, 100 Turkish lira exchanged for $12.05. By 11 January 2022 the rate had fallen to $7.22 – a 40.1% depreciation. This depreciation, in turn, further stoked inflation as the lower exchange rate pushed up the price of imported goods. (Click here for a PowerPoint of the chart.)
Attempts were made to stem this fall in the lira on 20 December, by which point 100 lira were trading for just $5.50 (see chart) and speculation against the lira was gathering momentum. President Erdoğan announced a scheme to protect lira deposits against currency volatility, guaranteeing lira deposits in hard currency terms. The mechanism adopted was a rise in the interest rate on lira deposits with a maturity of 3 to 12 months, thereby encouraging people to lock in deposits for the medium term and not, therefore, to use them to speculate against the lira by buying other currencies. Other interest rates would be unaffected. At the same time the central bank used foreign currency reserves to engage in large-scale purchases of the lira on the foreign exchange market.
The lira rallied. By 23 December, 100 lira were trading for $8.79. But then selling of the lira began again and, as stated above, by early January 100 lira had fallen to $7.22. The underlying problem of excess demand and high inflationary expectations had not been solved.
It remains to be seen whether the President will change his mind and decide that the central bank needs to raise interest rates to reduce inflation and restore confidence.
- Turkish Inflation Hits Highest Since 2002 Amid Lira Woes
Bloomberg, Baris Balci and Cagan Koc (3/1/22)
- Turkey’s annual inflation rate is over 82 percent, finds research group
- How Turkey can overcome its economic challenges
Arab News, Zaid M Belbagi (2/1/22)
- Turkey cuts interest rates despite spiralling inflation
BBC News, Victoria Craig (16/12/21)
- Turkey inflation surges 36% amid lira crisis, highest since 2002
- Turkey mulls new financial instruments to shield against inflation
Daily Sabah (3/1/22)
- Turkey raises minimum wage as lira crash, inflation sow hardship
Aljazeera, Umar Farooq (16/12/21)
- What to make of Turkey’s latest unorthodox currency move
Financial Times, Mohamed El-Erian (21/12/21)
- Erdoğan gambles on economy amid protests and rocketing inflation
The Guardian, Phillip Inman (24/11/21)
- Explained: How did Turkey’s economy go so wrong?
The Indian Express, Patricia Cohen (15/12/21)
- Until the pandemic, the Turkish economy could be seen as a success story. Why?
- What supply-side policies did Turkey pursue?
- Use either an aggregate demand and supply diagram or a dynamic aggregate demand and supply (DAD/DAS) diagram to explain what has happened to inflation in Turkey in the past few months.
- Explain the thinking behind the successive cuts in interest rates since September 2021.
- Why did the measures introduced on 20 December 2021 only temporarily halt the depreciation of the lira?
- Choose a country with a higher rate of inflation than Turkey (see second data link above). Find out the causes of its high rate. Are they similar to those in Turkey?
During the pandemic, millions of people’s wages in the UK were paid by the government to prevent the closure of businesses and a surge in unemployment. The furlough scheme officially came to an end in September 2021. However, with the spread of the Omicron variant and the fear of further restrictions being put in place, there has been a call by many to re-introduce the furlough scheme.
The furlough scheme
The furlough scheme began when the government brought in, what was officially called the Coronavirus Job Retention Scheme (CJRS) in early 2020. This was when the pandemic first forced businesses across the country to close. The scheme worked by paying part of employees’ wages, preventing the need for businesses to make their staff redundant, therefore avoiding a rapid rise in unemployment along with the associated costs. It also avoided the financial and emotional costs of firing and then rehiring workers post pandemic. Under the scheme, furloughed workers received 80% of their wages, up to £2500 a month, if they couldn’t work because of the impact of coronavirus. Employees were able to maintain the security of employment and the payments helped furloughed workers pay their bills.
The scheme saw billions of pounds spent paying the wages of employees whose firms were forced to close temporarily. It could be argued that the expense of the scheme was a huge disadvantage. However, the alternative would have been for the government to pay unemployment-related benefits. Despite the furlough scheme being deemed necessary, it was not without its drawbacks for the structure of businesses. Rather than businesses adapting to changes in the economy and consumer demands, they could decide to claim the money and avoid the need to restructure. There was also concern about the length of the furlough scheme and the ability of businesses to bounce back post-pandemic.
Since the start of the scheme, the specifics of what was paid and who received it changed over time, especially once the economy started opening again. Initial steps were made to allow part-time return to work and the scheme started to wind down over the summer of 2021, with the government covering less of the wages and businesses covering more. From July, employers had to provide 10% of the wages of their furloughed staff, with the government paying the rest. This then increased to 20% in August with the CJRS coming to a complete end on 30 September 2021. At this point, there were around 1.6 million employees still receiving payment from the scheme.
Impact on Employment
With the end to the furlough scheme in September 2021, there were concerns that this would lead to a large number of redundancies. However, data indicate that has not happened and there is a record number of job vacancies. Official figures show that UK employment rose in October, confirming the strength of the labour market. The Office for National Statistics stated that the employment rate rose to 75.5% in the three months to October, up 0.2 percentage points on the previous quarter. This is believed to be driven by a rise in part-time work, which had dropped sharply during the pandemic. However, it is important to note that the strength in these numbers was prior to the emergence of the Omicron variant.
In November, the government had ruled out once again bankrolling people’s wages at enormous expense. However, the Chancellor is now under pressure to respond to the latest announcements around the ever-changing landscape of the pandemic. The fast-spreading mutation of the Covid-19 virus, Omicron, is posing a fresh threat to the economy.
On the 8 December, the Prime Minister announced new ‘Plan B’ Covid rules for England. As part of these new rules to limit the spread of Omicron, people are being asked to work from home again if possible and face masks are compulsory in most public places. Covid passes or a negative Covid test result are also needed to get into nightclubs and large venues.
Scotland and Wales have brought in further restrictions. Scotland’s First Minister, Nicola Sturgeon, has asked people to limit socialising to three households at a time in the run-up to Christmas. Shops and hospitality venues in Scotland must bring back physical distancing and screens. In Wales, nightclubs will close after 26 December and social distancing will be reintroduced in shops.
Although the hospitality industry and retail sector remain open, they are facing a slump in trade thanks to the new restrictions and worries among the general public. With the work-from-home guidance and advice from health officials that people should limit their social interactions, pubs and restaurants have seen widespread cancellations in the run-up to Christmas. Trade is suffering and these mass cancellations come at a time when these sectors were hoping for bumper trade after a dismal last couple of years.
In light of these concerns, ministers are now being urged to guarantee support in case businesses have to shut. Despite the indication that it would be highly unlikely that the UK would experience a full return to the restrictions seen at previous stages of the crisis, the International Monetary Fund has stated that the UK government should be drawing up contingency plans. The IMF has called for a mini-furlough scheme in the event that the Omicron variant forces the government to close parts of the economy. The idea is that the mini-furlough scheme would see a limited version of the multi-billion-pound job subsidy scheme being rolled out if firms are forced to close.
There are strong calls for there to be targeted support, which this mini-furlough scheme could offer. The Resolution Foundation argued in mid-December that a furlough scheme tied solely to the hospitality industry would help prevent job loses in an industry that is currently suffering once again. It calculated that the cost of a hospitality-only furlough scheme would be £1.4 billion a month if it were pitched at the original level of 80% of wage support. If a January to March sector-specific scheme were to be introduced it is estimated to cost around £5 billion, a small cost in comparison to £46 billion spent on furlough so far.
Any reintroduction of a furlough scheme would be a jolt for the government. This would mean a return to the 2020-style arguments around protecting livelihoods and businesses, a contrast to the recent messaging from the Treasury of restoring public finances. There is also concern about how this will all impact on current growth predictions and inflation concerns. The IMF expects the growth of the UK economy to be 6.8% in 2021 and 5% in 2022. However, the drawback from this is that the recovery would also be accompanied by rising inflation. It has been suggested, therefore, that interest rate increases from the Bank of England would be needed to keep inflation under control, while at the same time being not so great as to kill off growth.
It was widely expected that the Bank of England would again put off a rate hike in order to wait to see the economic impact of Plan B restrictions. However, on Thursday 16 December, interest rates were raised for the first time in more than three years. Despite the fears that Omicron could slow the economy by causing people to spend less, Bank Rate was raised from 0.1% to 0.25% . This came in the wake of data showing prices climbing at the fastest pace for 10 years.
Government finances would take another huge hit if the furlough scheme were revived. But a version of such a scheme is likely to be necessary to avert an unemployment crisis and the attendant costs.
However, in resisting further measures, the government has argued that it has already acted early to help control the virus’s spread by rapidly rolling out booster jabs, while avoiding unduly damaging economic and social restrictions.
The government also argues that some of the measures from the total £400 billion Covid support package since the start of the pandemic will continue to help businesses into Spring 2022. Such measures include government-backed loans for small- and medium-sized businesses until June 2022, a reduction in VAT from 20% to 12.5% until March 2022 and business rates relief for eligible retail, hospitality, and leisure businesses until March 2022. Talks are ongoing with hospitality and and other business organisations directly affected by Covid restrictions.
The British Chambers of Commerce has argued that current measures are not enough and has called for VAT on hospitality and tourism to be cut back to its emergency rate of 5% and for the 100% business rates relief for retailers to return. The CBI has also called for any unspent local authority grants to be spent now to help affected firms and that further help, including business rates relief, should be on the table if restrictions continue after the government’s 5 January review date. The IMF said that with strong policy support, the economy had proved resilient, but it stressed that a return of some of the measures that prevented mass unemployment and large-scale business failures might soon be needed.
Infections caused by the new Omicron variant are rising rapidly, doubling every two to three days. It is expected to become the dominant variant in the UK soon with health officials warning it may be the most significant threat since the start of the pandemic. However, it is not yet known what the full extent of the impact of this new variant on the NHS will be, leaving the severity of future restrictions uncertain.
But what is evident is that the course of the pandemic has changed and there is a growing case for the government to start planning for new support packages. Although a reintroduction of the furlough scheme was hoped not to be needed on the path out of the pandemic, a short detour may be required in the form of a mini-furlough scheme. The size and reach of any support put in place will depend upon any further restrictions on economic activity.
- Should the level of support for business return to the levels in place earlier in 2021?
- What measures could a government put in place to curtail the spread of the Omicron variant that have only a minimal impact on business and employment?
- Compare the UK measures to curtail the spread of the virus with those used in some other European countries.
- What are the arguments for and against (a) re-introducing the furlough scheme as it was earlier in 2021; (b) introducing a version restricted to the hospitality sector?
To make a sensible comparison of one year’s national income generated from the production of goods and services with another we need to take inflation into account. Changes in inflation-adjusted GDP represent changes in the volume of production of a country’s goods and services: in other words, the real value of goods and services. We revisit the blog written back in April 2019, prior the pandemic, to show how changes in real GDP evidence what we may refer to as the twin characteristics of economic growth: positive long-term growth but with fluctuating short-term rates of growth.
Real and nominal GDP
The nominal or current-price estimate for UK Gross Domestic Product in 2020 is £2.156 trillion. It is the value of output produced within the country in 2020. This was a fall of 4.4 per cent on the £2.255 trillion recorded in 2019. These values make no adjustment for inflation and therefore reflect the prices of output that were prevailing at the time.
Chart 1 shows current-price estimates of GDP from 1950 when the value of GDP was estimated at £12.7 billion. The increase to £2.156 trillion in 2020 amounts to a proportionate increase of almost 170 times, a figure that rises to 211 times if we compare the 1950 value with the latest IMF estimate for 2025 of £2.689 trillion. However, if we want to make a more meaningful comparison of the country’s national income by looking at the longer-term increase in the volume of production, we need to adjust for inflation. (Click here to download a PowerPoint copy of the chart.)
Long-term growth in real GDP
If we measure GDP at constant prices, we eliminate the effect of inflation. To construct a constant-price series for GDP a process known as chain-linking is used. This involves taking consecutive pairs of years, e.g. 2020 and 2021, and estimating what GDP would be in the most recent year (in this case, 2021) if the previous year’s prices (i.e. 2020) had continued to prevail. By calculating the percentage change from the previous year’s GDP value we have an estimate of the volume change. If this is repeated for other pairs of years, we have a series of percentage changes that capture the volume changes from year-to-year. Finally, a reference year is chosen and the percentage changes are applied backwards and forwards from the nominal GDP value for the reference year – the volume changes forwards and backwards from this point.
In effect, a real GDP series creates a quantity measure in monetary terms. Chart 1 shows GDP at constant 2019 prices (real GDP) alongside GDP at current prices (nominal GDP). Consider first the real GDP numbers for 1950 and 2020. GDP in 1950 at 2019 prices was £410.1 billion. This is higher than the current-price value because prices in 2019 (the reference year) were higher than those in 1950. Meanwhile, GDP in 2020 when measured at 2019 prices was £2.037 trillion. This constant-price value is smaller than the corresponding current-price value because prices in 2019 where lower than those in 2020.
Between 1950 and 2020 real GDP increased 5.0 times. If we extend the period to 2025, again using the latest IMF estimates, the increase is 5.9 times. Because we have removed the effect of inflation, the real growth figure is much lower than the nominal growth figure. Crucially, what we are left with is an indicator of the long-term growth in the volume of the economy’s output and hence an increase in national income that is backed up by an increase in production. Whereas nominal growth rates are affected both by changes in volumes and prices, real growth rates reflect only changes in volumes.
The upward trajectory observed in constant-price GDP is therefore evidence of positive longer-term growth. This is one of the twin characteristics of growth.
Short-term fluctuations in the growth of real GDP
The second characteristic is fluctuations in the rate of growth from period to period. We can see this second characteristic more clearly by plotting the percentage change in real GDP from year to year.
Chart 2 shows the annual rate of growth in real GDP each year since 1950. From it, we see the inherent instability that is a key characteristic of the macroeconomic environment. This instability is, of course, mirrored in the output path of real GDP in Chart 1, but the annual rates of growth show the instability more clearly. We can readily see the impact on national output of the global financial crisis and the global health emergency.
In 2009, constant-price GDP in the UK fell by 4.25 per cent. Then, in 2020, constant-price GDP and, hence, the volume of national output fell by 9.7 per cent, as compared to a 4.4 per cent fall in current-price GDP that we identified earlier. These global, ‘once-in-a-generation’ shocks are stark examples of the instability that characterises economies and which generate the ‘ups and downs’ in an economy’s output path, known more simply as ‘the business cycle’. (Click here to download a PowerPoint copy of the chart.)
Determinants of long-and short-term growth
The twin characteristics of growth can be seen simultaneously by combining the output path captured by the levels of real GDP with the annual rates of growth. This is shown in Chart 3. The longer-term growth seen in the economy’s output path is generally argued to be driven by the quantity and quality of the economy’s resources, and their effectiveness when combined in production. In other words, it is the supply-side that determines the trajectory of the output path over the longer term. (Click here to download a PowerPoint copy of the chart.)
However, the fluctuations we observe in short-term growth rates tend to reflect impulses that affect the ability and or willingness of producers to supply (supply-side shocks) and purchasers to consume (demand-side shocks). These impulses are then propagated and their effects, therefore, transmitted through the economy.
Effects of the pandemic
The pandemic is unusual in that the health intervention measures employed by governments around the world resulted in simultaneous negative aggregate demand and aggregate supply shocks. Economists were particularly concerned that the magnitude of these impulses and their propagation had the potential to generate scarring effects and hence negative hysteresis effects. The concern was that these would affect the level of real GDP in the medium-to-longer term and, hence, the vertical position of the output path, as well as the longer-term rate of growth and, hence, the steepness of the output path.
The extent of these scarring effects continues to be debated. The ability of businesses and workers to adapt their practices, the extraordinary fiscal and monetary measures that were undertaken in many countries, and the roll-out of vaccines programmes, especially in advanced economies, have helped to mitigate some of these effects. For example, the latest IMF forecasts for output in the USA in 2024 are over 2 per cent higher than those made back in October 2019.
Scarring effects are, however, thought to be an ongoing issue in the UK. The IMF is now expecting output in the UK to be nearly 3 per cent lower than it originally forecast back in October 2019. Therefore, whilst UK output is set to recover, scarring effects on the UK economy will mean that the output path traced out by real GDP will remain, at least in the medium term, vertically lower than was expected before the pandemic.
Data and Reports
- What do you understand by the term ‘macroeconomic environment’? What data could be used to describe the macroeconomic environment?
- When a country experiences positive rates of inflation, which is higher: nominal economic growth or real economic growth?
- Does an increase in nominal GDP mean a country’s production has increased? Explain your answer.
- Does a decrease in nominal GDP mean a country’s production has decreased? Explain your answer.
- Why does a change in the growth of real GDP allow us to focus on what has happened to the volume of production?
- What does the concept of the ‘business cycle’ have to do with real rates of economic growth?
- When would falls in real GDP be classified as a recession?
- Distinguish between the concepts of ‘short-term growth rates’ and ‘longer-term growth’.
- What do you understand by the term hysteresis? By what means can hysteresis effects be generated?
- Discuss the proposition that the pandemic could have a positive effect on longer-term growth rates because of the ways that people and business have had to adapt.