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The economics of fake reviews

Imagine a situation where you are thinking of buying a good and so you go to an e-commerce marketplace such as Amazon, eBay, Etsy or Onbuy. How confident are you about the quality of the different brands/makes that are listed for sale on these digital platforms? How do you choose which product to buy? Is the decision strongly influenced by customer reviews and rating?

When a customer is choosing what to buy it raises an interesting question: to what extent can the true quality of the different goods/services be observed at the time of purchase? Although perfect observability is highly unlikely, the level of consumer information about a product’s true quality will vary between different types of transaction.

For example, when consumers can physically inspect and test/try a product in a shop, it can help them to make more accurate judgements about its quality and condition. This poses a problem for online sellers of high-quality versions of a good. Without the ability to inspect the item physically, consumers may be unsure about its characteristics. They may worry that the online description provided by the seller deliberately misrepresents the true quality of the item.

Consumers may have other concerns about the general reliability of online sellers. For example, in comparison to buying the product from a physical store, consumers may worry that:

  • They will have to wait longer to receive the good. In many cases, when consumers purchase a product from a high-street store, they can walk away with the item and start using it straight away. When purchasing on line, they may end up waiting weeks or even longer before the product is finally delivered.
  • It will be more difficult to return the product and get a refund.
  • They are more likely to come across fraudulent sellers who have set-up a fake website.

This greater level of uncertainty about the true characteristics of the product and the general reliability of the seller will have a negative impact on consumers’ willingness to pay for all goods. This impact is likely to be particularly strong for high-quality versions of a product. If consumers’ willingness to pay falls below the reservation price of many sellers of high-quality goods, then the market could suffer from adverse selection and market failure.

Are there any within-market arrangements that could help deal with this issue? One possibility is for sellers to signal the quality of their products by posting consumer ratings and reviews. If consumers see that a product has many positive ratings, then this will increase their confidence in the quality of the product and so increase their willingness to pay. This could then reduce both levels of asymmetric information and the chances of adverse selection occurring in the market,

There is survey evidence that many people do read consumer reviews when choosing products on line and are heavily influenced by the ratings.

The problem of fake reviews

However, when consumers look at these reviews can they be sure that they reflect consumers’ honest opinions and/or actual experience of using the good or service? Firms may have an incentive to manipulate and post fake reviews. For example, they could:

  • Deliberately fail to display negative reviews on their website while claiming that all reviews are published.
  • Use internet bots to post thousands of automated reviews.
  • Take positive reviews from competitors’ websites and post them on their own website.
  • Pay some customers and/or employees to write and post 5-star reviews on their own website.
  • Pay some customers and/or employees to write and post 1-star reviews on their competitors’ websites.
  • Set up a website that they claim is independent and use it to provide positive endorsements of their own products.

If the benefits of this type of behaviour outweigh the costs, then we would expect to see fake reviews posted on websites. If their use becomes widespread, then the value of posting genuine reviews will fall. The market may then settle into what economists call a ‘pooling equilibrium’.

What evidence do we have on the posting of fake reviews? Given their nature, it is difficult to collect reliable data and there are large variations in the reported figures. One recent study found evidence of fake reviews being purchased and posted for approximately 1500 products on Amazon.

Can consumers screen reviews and identify those that are more likely to be fake? The following are some tell-tale signs.

  • Products that receive a large number of very positive reviews over a short period (i.e. a few days). There are then long periods before the product receives another large number of positive reviews.
  • A high percentage of 5-star reviews. Two, three and four start reviews are more likely to be genuine.
  • Reviews that specifically mention a rival firm’s products.
  • Reviewers who have given very high ratings to large number of different products over a short period of time.
  • Reviews that include photos/videos.

Competition authorities around the world have been investigating the issue and the Competition and Markets Authority has announced plans to introduce new laws that make the purchasing and posting of fake reviews illegal.

Articles

Questions

  1. Outline different types of asymmetric information and explain the difference between adverse selection and moral hazard.
  2. Using a diagram, explain the impact of uncertainty over the quality of a good on consumers’ willingness to pay.
  3. Will consumers always face greater uncertainty over quality when purchasing goods on line rather than visiting the high street? Discuss your answer making reference to some specific examples.
  4. Using diagrams, explain how a market for high-quality versions of a good might collapse if there is asymmetric information. Using price elasticity of supply, explain the circumstances when the market is more likely to collapse.
  5. Discuss some of the benefits and costs for a firm of purchasing and posting fake reviews.
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What does 2023 have in store for the UK economy?

Last year was far from the picture of economic stability that all governments would hope for. Instead, the overarching theme of 2022 was uncertainty, which overshadowed many economic predictions throughout the year. The Collins English Dictionary announced that their word of the year for 2022 is ‘permacrisis’, which is defined as ‘an extended period of instability and insecurity’.

For the UK, 2022 was an eventful year, seeing two changes in prime minister, economic stagnation, financial turmoil, rampant inflation and a cost of living crisis. However, the UK was not alone in its economic struggles. Many believe that it is a minor miracle that the world did not experience a systemic financial crisis in 2022.

Russia’s invasion of Ukraine has led to the biggest land war in Europe since 1945, the most serious risk of nuclear escalation since the Cuban missile crisis and the most far-reaching sanctions regime since the 1930s. Soaring food and energy costs have fuelled the highest rates of inflation since the 1980s and the biggest macroeconomic challenge in the modern era of central banking (with the possible exception of the financial crisis of 2007–8 and its aftermath). For decades we have lived with the assumptions that nuclear war was never going to happen, inflation will be kept low and rich countries will not experience an energy crisis. In 2022 all of these assumptions and more have been shaken.

With the combination of rising interest rates and a massive increase in geopolitical risk, the world economy did well to survive as robustly as it did. However, with public and private debt having risen to record levels during the now-bygone era of ultra-low interest rates and with recession risks high, the global financial system faces a huge stress test.

Government pledges

Rishi Sunak, the UK Prime Minister, started 2023 by setting out five pledges: to halve inflation, boost economic growth, cut national debt as a percentage of GDP, and to address NHS waiting lists and the issue of immigrants arriving in small boats. Whilst most would agree that meeting these pledges is desirable, a reduction in inflation is forecast to happen anyway, given the monetary policy being pursued by the Bank of England and an easing of commodity prices; and public-sector debt as a percentage of GDP is forecast to fall from 2024/25.

Success in meeting the first four pledges will partly depend on the effects of the current industrial action by workers across the UK. How soon will the various disputes be settled and on what terms? What will be the implications for service levels and for inflation?

A weak global economy

Success will also depend on the state of the global economy, which is currently very fragile. In fact, it is predicted that a third of the global economy will be hit by recession this year. The head of the IMF has warned that the world faces a ‘tougher’ year in 2023 than in the previous 12 months. Such comments suggest the IMF is likely soon to cut its economic forecasts for 2023 again. The IMF already cut its 2023 outlook for global economic growth in October, citing the continuing drag from the war in Ukraine, as well as inflationary pressures and interest rate rises by major central banks.

The World Bank has also described the global economy as being ‘on a razor’s edge’ and warns that it risks falling into recession this year. The organisation expects the world economy to grow by just 1.7% this year, which is a sharp fall from an estimated 2.9% in 2022 according to the Global Economic Prospects report (see link below). It has warned that if financial conditions tighten, then the world’s economy could easily fall into a recession. If this becomes a reality, then the current decade would become the first since the 1930s to include two global recessions. Growth forecasts have been lowered for 95% of advanced economies and for more than 70% of emerging market and developing economies compared with six months ago. Given the global outlook, it is no surprise that the UK economy is expected to face a prolonged recession with declining growth and increased unemployment.

The current state of the UK economy

Despite all the concerns, official figures show that, even though households have been squeezed by rising prices, UK real GDP unexpectedly grew in November, by 0.1%. This has been explained by a boost to bars and restaurants from the World Cup as people went out to watch the football and also by demand for services in the tech sector.

At first sight, the UK’s cost of living crisis might look fairly mild compared to other countries. Its inflation rate was 10.7% in November 2022, compared to 12.6% in Italy, 16% in Poland and over 20% in Hungary and Estonia. But UK inflation is still way above the Bank of England’s 2% target. The Bank went on to tighten monetary policy further, by increasing interest rates to 3.5% in December. Further rate rises are expected in 2023. In fact, the markets and the Bank both expect the main rate to reach 5.2% by the end of this year. With the consequent squeeze on real incomes, the Bank of England expects a recession in the UK this year – possibly lasting until mid-2024.

The UK is also affected by global interest rates, which affect global growth. Global interest rates average 5%. A 1 percentage point increase would reduce global growth this year from 1.7% to 0.6%, with per capita output contracting by 0.3%, once changes in population are taken into account. This would then meet the technical definition of a global recession. This means that the Bank’s November economic forecast, which was based on a Bank Rate of 3%, may worsen due to an even larger contraction than previously expected. The resulting drop in spending and investment by people and businesses could then cause inflation to come down faster than the Bank had predicted when rates were at 3%.

There could be some positive news however, that may help bring down inflation in addition to rate rises. There has been some appreciation in the pound since the huge drop caused by the September mini-budget that had brought its value to a nearly 40-year low. This will help to reduce inflation by reducing the price of imports.

As far as workers are concerned, pay increases have been broadly contained, with 2022 being one of the worst years in decades for UK real wage growth. Limiting pay rises can have a deflationary effect because people have less to spend, but it also weighs on economic growth and productivity. Despite the impact on inflation, there is a lot of unrest across the UK, with strike action continuing to be at the forefront of the news. Strikes over pay and conditions continue in various sectors in 2023, including transport, health, education and the postal service. Strikes and industrial action have a negative effect on the wider economy. If wages are stagnating and the economy is not performing well, productivity will suffer as workers are less motivated and less investment in new equipment takes place.

Financial stresses

The UK economy is also under threat of a prolonged recession due to the proportion of households that lack insulation against financial setbacks. This proportion is unusually large for a wealthy economy. A survey conducted prior to the pandemic, found that 3 million people in the UK would fall into poverty if they missed one pay cheque, with the country’s high housing costs being a key source of vulnerability. Another survey recently suggested that one-third of UK adults would struggle if their costs rose by just £20 a month.

The pandemic itself meant that over 4 million households have taken on additional debt, with many now falling behind on repaying it. This, combined with recent jumps in energy and food bills, could push many over the edge, especially if heating costs remain high when the present government cap on energy prices ends in April.

However, there could be some better news for households with the easing of COVID restrictions in China. This could have a positive impact on the UK economy if it helps ease supply-chain disruptions occurring since the height of the global pandemic. It could reduce inflationary pressure in the UK and other countries that trade with China by making it easier – and therefore less costly – for people to get hold of goods.

Articles

Reports

Questions

  1. Define the term ‘deflation’.
  2. Explain how an appreciation of the pound is good for inflation.
  3. Discuss the wider economic impacts of industrial strike action.
  4. Why is it important for the government to keep wages contained?
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The growth of autarky: is globalisation dead?

Over the decades, economies have become increasingly interdependent. This process of globalisation has involved a growth in international trade, the spread of technology, integrated financial markets and international migration.

When the global economy is growing, globalisation spreads the benefits around the world. However, when there are economic problems in one part of the world, this can spread like a contagion to other parts. This was clearly illustrated by the credit crunch of 2007–8. A crisis that started in the sub-prime market in the USA soon snowballed into a worldwide recession. More recently, the impact of Covid-19 on international supply chains has highlighted the dangers of relying on a highly globalised system of production and distribution. And more recently still, the war in Ukraine has shown the dangers of food and fuel dependency, with rapid rises in prices of basic essentials having a disproportionate effect on low-income countries and people on low incomes in richer countries.

Moves towards autarky

So is the answer for countries to become more self-sufficient – to adopt a policy of greater autarky? Several countries have moved in this direction. The USA under President Trump pursued a much more protectionist agenda than his predecessors. The UK, although seeking new post-Brexit trade relationships, has seen a reduction in trade as new barriers with the EU have reduced UK exports and imports as a percentage of GDP. According to the Office for Budget Responsibility’s November 2022 Economic and Fiscal Outlook, Brexit will result in the UK’s trade intensity being 15 per cent lower in the long run than if it had remained in the EU.

Many European countries are seeking to achieve greater energy self-sufficiency, both as a means of reducing reliance on Russian oil and gas, but also in pursuit of a green agenda, where a greater proportion of energy is generated from renewables. More generally, countries and companies are considering how to reduce the risks of relying on complex international supply chains.

Limits to the gains from trade

The gains from international trade stem partly from the law of comparative advantage, which states that greater levels of production can be achieved by countries specialising in and exporting those goods that can be produced at a lower opportunity cost and importing those in which they have a comparative disadvantage. Trade can also lead to the transfer of technology and a downward pressure on costs and prices through greater competition.

But trade can increase dependence on unreliable supply sources. For example, at present, some companies are seeking to reduce their reliance on Taiwanese parts, given worries about possible Chinese actions against Taiwan.

Also, governments have been increasingly willing to support domestic industries with various non-tariff barriers to imports, especially since the 2007–8 financial crisis. Such measures include subsidies, favouring domestic firms in awarding government contracts and using regulations to restrict imports. These protectionist measures are often justified in terms of achieving security of supply. The arguments apply particularly starkly in the case of food. In the light of large price increases in the wake of the Ukraine war, many countries are considering how to increase food self-sufficiency, despite it being more costly.

Also, trade in goods involves negative environmental externalities, as freight transport, whether by sea, air or land, involves emissions and can add to global warming. In 2021, shipping emitted over 830m tonnes of CO2, which represents some 3% of world total CO2 emissions. In 2019 (pre-pandemic), the figure was 800m tonnes. The closer geographically the trading partner, the lower these environmental costs are likely to be.

The problems with a globally interdependent world have led to world trade growing more slowly than world GDP in recent years after decades of trade growth considerably outstripping GDP growth. Trade (imports plus exports) as a percentage of GDP peaked at just over 60% in 2008. In 2019 and 2021 it was just over 56%. This is illustrated in the chart (click here for a PowerPoint). Although trade as a percentage of GDP rose slightly from 2020 to 2021 as economies recovered from the pandemic, it is expected to have fallen back again in 2022 and possibly further in 2023.

But despite this reduction in trade as a percentage of GDP, with de-globalisation likely to continue for some time, the world remains much more interdependent than in the more distant past (as the chart shows). Greater autarky may be seen as desirable by many countries as a response to the greater economic and political risks of the current world, but greater autarky is a long way from complete self-sufficiency. The world is likely to remain highly interdependent for the foreseeable future. Reports of the ‘death of globalisation’ are premature!

Podcasts

Articles

Report

Questions

  1. Explain the law of comparative advantage and demonstrate how trade between two countries can lead to both countries gaining.
  2. What are the main economic problems arising from globalisation?
  3. Is the answer to the problems of globalisation to move towards greater autarky?
  4. Would the expansion/further integration of trading blocs be a means of exploiting the benefits of globalisation while reducing the risks?
  5. Is the role of the US dollar likely to decline over time and, if so, why?
  6. Summarise Karl Polanyi’s arguments in The Great Transformation (see the Daniel W. Drezner article linked below). How well do they apply to the current world situation?
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Digital Markets: Reform of competition laws

The emergence of the digital economy has brought about increased competition across a wide range of products and services. The digital economy has provided businesses with the opportunity to produce new categories of goods and services with the aid of artificial intelligence. This new digital era has also been beneficial for consumers who now have greater choice and access to often higher-quality products at lower prices.

But while the digital revolution has facilitated greater competition, it also presents some challenges for competition law enforcement. Competition agencies continue to intensify their scrutiny of the digital economy as they try to get to grips with both the opportunities and challenges.

The role of regulation

Many agencies are aware that regulatory overreach could have negative effects on the development of digital markets. Therefore, any competition enforcement in this area needs to be evidenced-based.

A number of agencies have commissioned market studies or appointed experts in the digital field to prepare industry reports. While many of these reports and studies have found that existing competition rules generally continue to provide a solid basis for protecting competition in the digital age, there is growing demand for various changes to regulation. The reports have generally noted that the traditional tools for competition analysis may require some adaptation or refinement to address better the specificities of online markets, such as the multisided nature of platforms, network effects, zero-price markets, ‘big data’ and the increased use of algorithms.

Tech giants and online platforms, in particular, have been a focus of recent intervention by competition authorities. Investigations and intervention have related to a range of practices, including self-preferencing in the ranking of search results, the bundling of apps (and other alleged anti-competitive leveraging strategies), the collection, usage and sharing of data, and the setting of access conditions to mobile ecosystems and app stores.

The duration and complexity of these investigations have been met with concerns that competition authorities are not sufficiently equipped to protect competition in fast-moving digital markets. These concerns have been amplified by the growth in size and importance of online platforms, their significant economies of scale and network effects, and the risk that market power in digital markets can become quickly entrenched.

In addition to the commissioned reports, some agencies have established or appointed specialist digital markets units or officers. The aim of such units is to develop expertise and regulation to deal with fast-paced digital markets. In Europe, The Digital Markets Act (DMA) was adopted by the EU in response to these concerns to establish a uniform ex-ante regulatory regime to make digital markets fairer and more competitive, and to prevent a fragmentation of the EU’s internal market.

A recent case concerns Apple. Because of the Digital Markets Act, Apple has been required to allow app store competitors onto its products. This will come into effect in 2024.

UK policy

In the UK, the government has been concerned that ‘the unprecedented concentration of power amongst a small number of digital firms is holding back innovation and growth’. UK competition rules are thus set to change significantly, with the government setting out the framework for an entirely new ‘pro-competition regime’ for digital markets. As it states in the Executive Summary to its proposals for such a regime (see linked UK official publication below):

The size and presence of ‘big’ digital firms is not inherently bad. Nonetheless, there is growing evidence that the particular features of some digital markets can cause them to ‘tip’ in favour of one or two incumbents… This market power can become entrenched, leading to higher prices, barriers to entry for entrepreneurs, less innovation, and less choice and control for consumers.

It has established a new Digital Markets Unit (DMU) within the Competition and Markets Authority (CMA). It was launched in ‘shadow form’ in April 2021, pending the introduction of the UK’s new digital regulatory regime. Under the proposals, the new regime will focus on companies that the DMU designates as having ‘strategic market status’.

The government is expected to publish its much-awaited Digital Markets, Competition and Consumer Bill, which, according to legal experts, will represent the most significant reform of UK competition and consumer protection laws in years.

It is expected that the Bill will result in important reforms for competition law, but it is also expected to give the DMU powers to enforce a new regulatory regime. This new regime will apply to UK digital firms that have ‘strategic market status’ (SMS). This will be similar to the EU’s Digital Markets Act in how it applies to certain ‘gatekeeper’ digital firms. However, the UK regulations are intended to be more nuanced than the EU regime in terms of how SMS firms are designated and the specific obligations they will have to comply with.

A report by MPs on the influential Business, Energy and Industrial Strategy Committee published in October, urged the Government to publish a draft Digital Markets Bill that would help deter predatory practices by big tech firms ‘without delay’.

On 17th November 2022, the UK Government announced in its Autumn Statement 2022 that it will bring forward the Bill in the third Parliamentary session. There has been no specific date announced yet for the first reading of the Bill, but it will probably be in Spring 2023. Current expectations are that the new DMU regime and reforms to competition and consumer protection laws could be effective as early as October 2023.

Proposals for the Bill were trailed by the Government in the Queen’s Speech. It announced measures that would empower the Competition and Markets Authority’s (CMA) Digital Markets Unit (DMU) to rein in abusive tech giants by dropping the turnover threshold for immunity from financial penalties from £50 million to £20 million and hiking potential maximum fines to 10% of global annual income. Jeremy Hunt, the Chancellor of the Exchequer, said that the Bill, once enacted, would ‘tackle anti-competitive practice in digital markets’ and provide consumers with higher quality products and greater choice. The strategy includes tailored codes of conduct for certain digital companies and a bespoke merger control regime for designated firms.

The Bill is also expected to include a wide range of reforms to the competition and consumer law regimes in the UK, in particular:

  • wide-ranging changes to the CMA’s Competition Act 1998 and market study/investigation powers, including significant penalties for non-compliance with market investigation orders;
  • significant strengthening of the consumer law enforcement regime by enabling the CMA directly to enforce consumer law through the imposition of fines;
  • changes to UK consumer laws to tackle subscription traps and fake reviews and to enhance protections for savings schemes.

Competition law expert Alan Davis of Pinsent Masons said:

Importantly, the Bill will bring about major reforms to consumer protection law, substantially strengthening the CMA’s enforcement powers to mirror those it already uses in antitrust cases, as well as important changes to merger control and competition rules.

It is anticipated that the Bill will announce the most significant reforms of UK competition and consumer protection laws in years and is expected to have an impact on all business in the UK to varying degrees. It is advised, therefore, that businesses need to review their approach to sales and marketing given the expected new powers of the CMA to impose significant fines in relation to consumer law breaches.

Conclusions

Technological innovation is largely pro-competitive. However, competition rules must be flexible and robust enough to deal with the challenges of the online world. A globally co-ordinated approach to the challenges raised in competition law by the digital age remains important wherever possible. Under the EU’s Digital Markets Act, firms that are designated as gatekeepers, and those defined as having strategic market status under the UK regime, will be required to undertake significant work to ensure compliance with the new rules.

Articles

UK official publications

Questions

  1. For what reasons may digital markets be more competitive than traditional ones?
  2. What types of anti-competitive behaviour are likely in digital markets?
  3. Explain what are meant by ‘network economies’? What are their implications for competition and market power?
  4. Explain what is meant by ‘bundling’? How is this likely to occur in digital markets?
  5. Give some examples where traditional markets are combined with online ones. Does this make it difficult to pursue an effective competition policy?
  6. Give some examples of ways in which firms can mislead or otherwise take advantage of consumers in an e-commerce environment.
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The costs of Brexit: a clearer picture

At the time of the 2016 referendum, the clear consensus among economists was that Brexit would impose net economic costs on the UK economy. The size of these costs would depend on the nature of post-Brexit trading relations with the EU. The fewer the new barriers to trade and the closer the alignment with the EU single market, the lower these costs would be.

The Brexit deal in the form of the EU-UK Trade and Cooperation Agreement (see also) applied provisionally from January 2021, after the end of the transition period, and came into force in May 2021. Although this is a free-trade deal in the sense that goods made largely in the UK or EU can be traded tariff-free between the two, the deal does not apply to services (e.g. financial services) or to goods where components made outside the UK or EU account for more than a certain percentage (the ‘rules of origin‘ condition). Also there has been a huge increase in documentation that must be completed to export to or import from the EU.

Even though the nature of the Brexit deal has been clear since it was signed in December 2020, assessing the impact of the extra barriers to trade it has created has been hard given the various shocks that have had a severe impact on the UK (and global) economy. First COVID-19 and the associated lockdowns had a direct effect on output and trade; second the longer-term international supply-chain disruptions have extended the COVID costs beyond the initial lockdowns and acted as a brake on recovery and growth; third the Russian invasion of Ukraine imposed a severe shock to energy and food markets; fourth these factors have created not just a supply shock but also an inflationary shock, which has resulted in central banks seeking to dampen demand by significantly raising interest rates. One worry among analysts was that the negative effects of such shocks might be greater on the UK economy than on other countries.

However, the negative effects of Brexit are now becoming clearer and various institutions have attempted to quantify the costs. These costs are largely in terms of lower GDP than otherwise. This results from:

  • reduced levels of trade with the EU, thereby reducing the gains from exploiting comparative advantage;
  • increased costs of trade with the EU;
  • disruptions to supply chains;
  • reduced competition from European firms, with many no longer exporting to the UK because of the costs;
  • reduced inward investment;
  • labour market shortages, particularly in certain areas such a hospitality, construction, social care and agriculture as many European workers have left the UK and fewer come;
  • a reduction in productivity.

Here is a summary of the findings of different organisations.

The Office for Budget Responsibility (OBR)

The OBR has argued that Brexit as negotiated in the Trade and Cooperation Agreement:

will reduce long-run productivity by 4 per cent relative to remaining in the EU. This largely reflects our view that the increase in non-tariff barriers on UK-EU trade acts as an additional impediment to the exploitation of comparative advantage.21

In addition the OBR estimates that:

Both exports and imports will be around 15 per cent lower in the long run than if the UK had remained in the EU.21

Recent evidence supports this. According to the OBR:

UK and aggregate advanced economy goods export volumes fell by around 20 per cent during the initial wave of the pandemic in 2020. But by the fourth quarter of 2021 total advanced economy trade volumes had rebounded to 3 per cent above their pre-pandemic levels while UK exports remain around 12 per cent below.22

This assumption was repeated in the November 2022 Economic and Fiscal Outlook (p.26) 23. What is more, new trade deals will make little difference, either because they are a roll-over from previous EU trade deals with the respective country or have only a very small effect (e.g. the trade deal with Australia).

The Bank of England

The Bank of England, ever since the referendum in 2016, has forecast that Brexit would damage trade, productivity and GDP growth. In recent evidence to the House of Commons Treasury Committee5, Andrew Bailey, the Governor, stated that previous work by the Bank concluded that Brexit would reduce productivity by a bit over 3% and that this was still the Bank’s view.

His colleague, Dr Swati Dhingra, stated that, because of Brexit, there was a ‘much bigger slowdown in trade in the UK compared to the rest of the world’. She continued:

The simple way of thinking about what Brexit has done to the economy is that in the period after the referendum, the biggest depreciation that any of the world’s four major economies have seen overnight contributed to increasing prices [and] reduced wages. …We think that number is about 2.6% below the trend that real wages would have been on. Soon afterwards and before the TCA happened came the effects of the uncertainty that was unleashed, which basically translates into reduced business investment and less certainty of the FDI effects. Those tend to be very long-pay things.

She continued that now we are seeing significantly reduced trade directly as a result of the Brexit trade agreement (TCA).

Her colleague, Dr Catherine Mann, argued that ‘the small firms are the ones that are the most damaged, because the cost of the paperwork and so forth is a barrier’. This does not only affect UK firms exporting to the EU but also EU firms exporting to the UK. Reduced imports from EU firms reduces competition in the UK, which tends to lead to higher prices.

The Institute for Fiscal Studies

The IFS has consistently argued that Brexit, because of increased trade barriers with the EU, has reduced UK trade, productivity and GDP. In a recent interview6, its Director, Paul Johnson, stated that ‘Brexit, without doubt, has made us poorer than we would otherwise have been’. That, plus other convulsions, such as the mini-Budget of October 2022, have reduced foreigners’ confidence in the UK, with the result that investment in the UK and trade with the rest of the world have fallen.

Resolution Foundation

In a major Resolution Foundation report24, the authors argued that the effects of Brexit will take time to materialise fully and will occur in three distinct phases. First, in anticipation of permanent effects, the referendum caused sterling to depreciate and this adversely affected household incomes. What is more, the uncertainty about the future caused business investment to fall (but not inward FDI). Second, the Trade and Cooperation Act, by introducing trade barriers, reduced UK trade with the EU. But trade with the rest of the world also fell suggesting that Brexit is impacting UK trade openness and competitiveness more broadly. Third, there will be structural changes to the UK economy over the long-term which will adversely affect economic growth:

A less-open UK will mean a poorer and less productive one by the end of the decade, with real wages expected to fall by 1.8 per cent, a loss of £470 per worker a year, and labour productivity by 1.3 per cent, as a result of the long-run changes to trade under the TCA. This would be equivalent to losing more than a quarter of the last decade’s productivity growth.

Nuffield Trust

One of the key effects of Brexit has been on the labour market and especially on sectors, such as hospitality, agriculture, construction, health and social care. These sectors are experiencing labour shortages, in part due to EU nationals leaving the UK. In 2021, the Nuffield Trust looked at the supply of workers in health and social care25 and found that, as a result of increased bureaucratic hurdles, the number of EU/EFTA-trained nurses had declined since 2016. In social care, new immigration rules have made it virtually impossible to recruit from the EU. A more recent report looked at the recruitment of doctors in four specific specialties.26 In each case, although the number recruited from the EU/EFTA was still increasing, the rate of increase had slowed significantly. The reason appeared to be Brexit not COVID-19.

Ivalua

Research by Coleman Parkes for Ivalua18 shows that 80% of firms found Brexit to have been the biggest cause of supply-chain disruptions in the 12 months to August 2022, with 83% fearing the biggest disruptions from Brexit are yet to come. Brexit was found to have had a bigger effect on supply chains than the war in Ukraine, rising energy costs and COVID-19.

Centre for European Reform

Modelling conducted by John Springford27 used a ‘doppelgängers’ method to show the effects of Brexit on the UK economy. Each doppelgänger is ‘a basket of countries whose economic performance closely matches the UK’s before the Brexit referendum and the end of the transition period’. Comparing the UK’s performance with the doppelgänger can show the difference between leaving and not leaving the UK. Doppelgängers were estimated for GDP, investment (gross fixed capital formation), total services trade (exports plus imports) and total goods trade (ditto).

The results are sobering. In the final quarter of 2021, UK GDP is 5.2 per cent smaller than the modelled, doppelgänger UK; investment is 13.7 per cent lower; and goods trade, 13.6 per cent lower.

Economic and Social Research Institute (ESRI) (Ireland)

Similar results for UK trade have been obtained by Janez Kren and Martina Lawless in research conducted for the ESRI.28 They used product-level trade flows between the EU and all other countries in the world as a comparison group. This showed a 16% reduction in UK exports to the EU and a 20% reduction in UK imports from the EU relative to the scenario in which Brexit had not occurred.

British Chambers of Commerce (BCC) survey

According to a BCC survey of 1168 businesses33, 92% of which are SMEs, more than three quarters (77%) for which the Brexit deal is applicable say it is not helping them increase sales or grow their business and 56% say they have difficulties in adapting to the new rules for trading goods. The survey shows that UK firms are facing significant challenges in trying to trade with EU countries under the terms of the Trade and Cooperation Agreement. What is more, 80% of firms had seen the cost of importing increase; 53% had seen their sales margins decrease; and almost 70% of manufacturers had experienced shortages of goods and services from the EU.

Academic studies

Research at the Centre for Business Prosperity, Aston University, by Jun Du, Emine Beyza Satoglu and Oleksandr Shepotylo20, 29 found that UK exports to the EU ‘fell by an average of 22.9% in the first 15 months after the introduction of the EU-UK Trade and Cooperation Agreement’. The negative effect on UK exports persisted and deepened from January 2021 to March 2022. The research involved comparing actual trade with an ‘alternative UK economy’ model based on the UK having remained in the EU. What is more, the researchers found that there had been a reduction of 42% in the number of product varieties exported to the EU, with a large number of exporters simply ceasing to export to the EU and with many of the remaining exporters streamlining their product ranges.

Research at the LSE’s Centre for Economic Performance by Jan David Bakker, Nikhil Datta, Richard Davies and Josh De Lyon31 found that leaving the EU added an average of £210 to UK household food bills over the two years to the end of 2021. This amounted to a total cost to consumers of £5.8 billion. This confirmed the findings of previous research30 that the increase in UK-EU trade barriers led to food prices in the UK being 6% higher than they would have been.

Finally, a report from the Migration Observatory at the University of Oxford32 examined the effects of the ending of the free movement of labour from the EU to the UK. Visas are now required, but ‘low-wage occupations that used to rely heavily on EU workers are now ineligible for work visas, with some limited exceptions for social care and seasonal workers’. Many industries are facing labour shortages. Reasons include other factors, such as low pay and unattractive working conditions, and workers leaving the workforce during the pandemic and afterwards. But the end of free movement appears to have exacerbated these existing problems.

References

    Videos

  1. The Brexit effect: how leaving the EU hit the UK

    2. Financial Times film (18/10/22)

  2. What impact is Brexit having on the UK economy?

    3. Brexit and the UK economy, Ros Atkins (29/10/22)

  3. Why Brexit is damaging the UK economy both now and in the future

    4. Economics Help on YouTube, Tejvan Pettinger (5/12/22)

  4. Why the Costs of Brexit keep growing for the UK economy

    5. Economics Help on YouTube, Tejvan Pettinger (17/10/22)

  5. Treasury Committee (see also)

    6. Parliament TV (25/11/22) (see 15:03:00 to 15:08:12) (Click here for a transcript: see Q637 to Q641)

  6. UK economy made worse by ‘own goals’ like Brexit and Truss mini-budget, IFS economist says

    7. Sky News, Paul Johnson (IFS) (18/11/22)

    Articles

  7. Brexit and the economy: the hit has been ‘substantially negative’

    8. Financial Times, Chris Giles (30/11/22)

  8. ‘What have we done?’: six years on, UK counts the cost of Brexit

    9. The Observer, Toby Helm, Robin McKie, James Tapper & Phillip Inman (25/6/22)

  9. Brexit did hurt the City’s exports – the numbers don’t lie

    10. Financial News, David Wighton (9/11/22)

  10. Brits are starting to think again about Brexit as the economy slides into recession

    11. CNBC, Elliot Smith (23/11/22)

  11. Brexit has cracked Britain’s economic foundations

    12. CNN, Hanna Ziady (24/12/22)

  12. Mark Carney: ‘Doubling down on inequality was a surprising choice’

    13. Financial Times, Edward Luce (14/10/22)

  13. Brexit: Progress on trade deals slower than promised

    14. BBC News, Ione Wells & Brian Wheeler (2/12/22)

  14. How Brexit costs this retailer £1m a month in sales

    15. BusinessLive, Tom Pegden (22/11/22)

  15. Brexit Is Hurting The UK Economy, Bank Of England Official Says

    16. HuffPost, Graeme Demianyk (16/11/22)

  16. Brexit and drop in workforce harming economic recovery, says Bank governor

    17. The Guardian, Richard Partington (16/11/22)

  17. Brexit a major cause of UK’s return to austerity, says senior economist

    18. The Guardian, Anna Isaac (14/11/22)

  18. 80% of UK businesses say Brexit caused the biggest supply chain disruption in the last 12 months

    19. Ivalua (28/11/22)

  19. Brexit added £210 to household food bills, new research finds

    20. Sky News, Faye Brown (1/12/22)

  20. Brexit changes caused 22.9% slump in UK-EU exports into Q1 2022 – research

    21. Expertfile (8/12/22)

    Research and analysis

  21. Brexit analysis

    22. OBR (26/5/22)

  22. The latest evidence on the impact of Brexit on UK trade

    23. OBR (March 2022)

  23. Economic and fiscal outlook – November 2022 (PDF)

    24. OBR (17/11/22)

  24. The Big Brexit (PDF)

    25. Resolution Foundation, Swati Dhingra, Emily Fry, Sophie Hale & Ningyuan Jia (June 2022)

  25. Going it alone: health and Brexit in the UK

    26. Nuffield Trust, Mark Dayan, Martha McCarey, Tamara Hervey, Nick Fahy, Scott L Greer, Holly Jarman, Ellen Stewart and Dan Bristow (20/12/21)

  26. Has Brexit affected the UK’s medical workforce?

    27. Nuffield Trust, Martha McCarey and Mark Dayan (27/11/22)

  27. What can we know about the cost of Brexit so far?

    28. Centre for European Reform, John Springford (9/6/22)

  28. Brexit reduced overall EU-UK goods trade flows by almost one-fifth

    29. Economic and Social Research Institute (Ireland), Janez Kren and Martina Lawless (19/10/22)

  29. Post-Brexit UK Trade – An Update (PDF)

    30. Centre for Business Prosperity, Aston University, Jun Du, Emine Beyza Satoglu and Oleksandr Shepotylo (November 2022)

  30. Post-Brexit imports, supply chains, and the effect on consumer prices (PDF)

    31. UK in a Changing Europe, Jan David Bakker, Nikhil Datta, Josh De Lyon, Luisa Opitz and Dilan Yang (25/4/22)

  31. Non-tariff barriers and consumer prices: evidence from Brexit

    32. Centre for Economic Performance, LSE, Jan David Bakker, Nikhil Datta, Richard Davies and Josh De Lyon (December 2022)

  32. How is the End of Free Movement Affecting the Low-wage Labour Force in the UK?

    33. Migration Observatory, University of Oxford, Madeleine Sumption, Chris Forde, Gabriella Alberti and Peter William Walsh (15/8/22)

  33. The Trade and Cooperation Agreement: Two Years On – Proposals For Reform by UK Business

    34. British Chambers of Commerce (21/12/22)

  34. The Detriments of Brexit

    35. Yorkshire Bylines (June 2022) (see also)

Questions

  1. Summarise the negative effects of Brexit on the UK economy.
  2. Why is it difficult to quantify these effects?
  3. Explain the ‘doppelgängers’ method of estimating the costs of Brexit? How reliable is this method likely to be?
  4. How have UK firms attempted to reduce the costs of exporting to the EU?
  5. Is Brexit the sole cause of a shortage of labour in many sectors in the UK?