Category: Essentials of Economics: 8e Ch 15

Many developing countries are facing a renewed debt crisis. This is directly related to Covid-19, which is now sweeping across many poor countries in a new wave.

Between 2016 and 2020, debt service as a percentage of GDP rose from an average of 7.1% to 27.1% for South Asian countries, from 8.1% to 14.1% for Sub-Saharan African countries, from 13.1% to 42.3% for North African and Middle Eastern countries, and from 5.6% to 14.7% for East Asian and Pacific countries. These percentages are expected to climb again in 2021 by around 10% of GDP.

Incomes have fallen in developing countries with illness, lockdowns and business failures. This has been compounded by a fall in their exports as the world economy has contracted and by a 19% fall in aid in 2020. The fall in incomes has led to a decline in tax revenues and demands for increased government expenditure on healthcare and social support. Public-sector deficits have thus risen steeply.

And the problem is likely to get worse before it gets better. Vaccination roll-outs in most developing countries are slow, with only a tiny fraction of the population having received just one jab. With the economic damage already caused, growth is likely to be subdued for some time.

This has put developing countries in a ‘trilemma’, as the IMF calls it. Governments must balance the objectives of:

  1. meeting increased spending needs from the emergency and its aftermath;
  2. limiting the substantial increase in public debt;
  3. trying to contain rises in taxes.

Developing countries are faced with a difficult trade-off between these objectives, as addressing one objective is likely to come at the expense of the other two. For example, higher spending would require higher deficits and debt or higher taxes.

The poorest countries have little scope for increased domestic borrowing and have been forced to borrow on international markets. But such debt is costly. Although international interest rates are generally low, many developing countries have had to take on increasing levels of borrowing from private lenders at much higher rates of interest, substantially adding to the servicing costs of their debt.

Debt relief

International agencies and groups, such as the IMF, the World Bank, the United Nations and the G20, have all advocated increased help to tackle this debt crisis. The IMF has allocated $100bn in lending through the Rapid Financing Instrument (RFI) and the Rapid Credit Facility (RCF) and nearly $500m in debt service relief grants through the Catastrophe Containment and Relief Trust (CCRT). The World Bank is increasing operations to $160bn.

The IMF is also considering an increase in special drawing rights (SDRs) from the current level of 204.2bn ($293.3bn) to 452.6bn ($650bn) – a rise of 121.6%. This would be the first such expansion since 2009. It has received the support of both the G7 and the G20. SDRs are reserves created by the IMF whose value is a weighted average of five currencies – the US dollar (41.73%), the euro (30.93%), the Chinese yuan (10.92%), the Japanese yen (8.33%) and the pound sterling (8.09%).

Normally an increase in SDRs would be allocated to countries according their IMF quotas, which largely depend on the size of their GDP and their openness. Any new allocation under this formula would therefore go mainly to developed countries, with developing economies getting only around $60bn of the extra $357bn. It has thus been proposed that developed countries give much of their allocation to developing countries. These could then be used to cancel debts. This proposal has been backed by Janet Yellen, the US Secretary of the Treasury, who said she would “strongly encourage G20 members to channel excess SDRs in support of recovery efforts in low-income countries, alongside continued bilateral financing”.

The G20 countries, with the support of the IMF and World Bank, have committed to suspend debt service payments by eligible countries which request to participate in its Debt Service Suspension Initiative (DSSI). There are 73 eligible countries. The scheme, now extended to 31 December 2021, provides a suspension of debt-service payments owed to official bilateral creditors. In return, borrowers commit to use freed-up resources to increase social, health or economic spending in response to the crisis. As of April 2021, 45 countries had requested to participate, with savings totalling more than $10bn. The G20 has also called on private creditors to join the DSSI, but so far without success.

Despite these initiatives, the scale of debt relief (as opposed to extra or deferred lending) remains small in comparison to earlier initiatives. Under the Heavily Indebted Poor Countries initiative (HIPC, launched 1996) and the Multilateral Debt Relief Initiative (MDRI, launched 2005) more than $100bn of debt was cancelled.

Since the start of the pandemic, major developed countries have spent between $10 000 and $20 000 per head in stimulus and social support programmes. Sub-Saharan African countries on average are seeking only $365 per head in support.

Articles and blogs





  1. Imagine you are an economic advisor to a developing country attempting to rebuild the economy after the coronavirus pandemic. How would you advise it to proceed, given the ‘trilemma’ described above?
  2. How does the News24 article define ‘smart debt relief’. Do you agree with the definition and the means of achieving smart debt relief?
  3. To what extent is it in the interests of the developed world to provide additional debt relief to poor countries whose economies have been badly affected by the coronavirus pandemic?
  4. Research ‘debt-for-nature swaps’. To what extent can debt relief for countries affected by the coronavirus pandemic be linked to tackling climate change?

There have been many analyses of the economic effects of Brexit, both before the referendum and at various times since, including analyses of the effects of the deal negotiated by Theresa May’s government and the EU. But with the prospect of a no-deal Brexit on 31 October under the new Boris Johnson government, attention has turned to the effects of leaving the EU without a deal.

There have been two major analyses recently of the likely effects of a no-deal Brexit – one by the International Monetary Fund (IMF) and one by the Office for Budget Responsibility (OBR).

IMF analysis

The first was in April by the IMF as part of its 6-monthly World Economic Outlook. In Scenario Box 1.1. ‘A No-Deal Brexit’ on page 28 of Chapter 1, the IMF looked at two possible scenarios.

Scenario A assumes no border disruptions and a relatively small increase in UK sovereign and corporate spreads. Scenario B incorporates significant border disruptions that increase import costs for UK firms and households (and to a lesser extent for the European Union) and a more severe tightening in financial conditions.

Under both scenarios, UK exports to the EU and UK imports from the EU revert to WTO rules. As a result, tariffs are imposed by mid-2020 or earlier. Non-tariff barriers rise at first but are gradually reduced over time. Most free-trade arrangements between the EU and other countries are initially unavailable to the UK (see the blog EU strikes major trade deals) but both scenarios assume that ‘new trade agreements are secured after two years, and on terms similar to those currently in place.’

Both scenarios also assume a reduction in net immigration from the EU of 25 000 per year until 2030. Both assume a rise in corporate and government bond rates, reflecting greater uncertainty, with the effect being greater in Scenario B. Both assume a relaxing of monetary and fiscal policy in response to downward pressures on the economy.

The IMF analysis shows a negative impact on UK GDP, with the economy falling into recession in late 2019 and in 2020. This is the result of higher trade costs and reduced business investment caused by a poorer economic outlook and increased uncertainty. By 2021, even under Scenario A, GDP is approximately 3.5% lower than it would have been if the UK had left the EU with the negotiated deal. For the rest of the EU, GDP is around 0.5% lower, although the effect varies considerably from country to country.

The IMF analysis makes optimistic assumptions, such as the UK being able to negotiate new trade deals with non-EU countries to replace those lost by leaving. More pessimistic assumptions would lead to greater costs.

OBR analysis

Building on the analysis of the IMF, the Office for Budget Responsibility considered the effect of a no-deal Brexit on the public finances in its biennial Fiscal risks report, published on 17 July 2019. This argues that, under the relatively benign Scenario A assumptions of the IMF, the lower GDP would result in annual public-sector net borrowing (PSNB) rising. By 2021/22, if the UK had left with the deal negotiated with the EU, PSNB would have been around £18bn. A no-deal Brexit would push this up to around £51bn.

According to the OBR, the contributors to this rise in public-sector net borrowing of around £33bn are:

  • A fall in income tax and national insurance receipts of around £16.5bn per year because of lower incomes.
  • A fall in corporation tax and expenditure taxes, such as VAT, excise duties and stamp duty of around £22.5bn per year because of lower expenditure.
  • A fall in capital taxes, such as inheritance tax and capital gains tax of around £10bn per year because of a fall in asset prices.
  • These are offset to a small degree by a rise in customs duties (around £10bn) because of the imposition of tariffs and by lower debt repayments (of around £6bn) because of the Bank of England having to reduce interest rates.

The rise in PSNB would constrain the government’s ability to use fiscal policy to boost the economy and to engage in the large-scale capital projects advocated by Boris Johnson while making the substantial tax cuts he is proposing. A less optimistic set of assumptions would, of course, lead to a bigger rise in PSNB, which would further constrain fiscal policy.





  1. What are the assumptions of the IMF World Economic Outlook forecasts for the effects of a no-deal Brexit? Do you agree with these assumptions? Explain.
  2. What are the assumptions of the analysis of a no-deal Brexit on the public finances in the OBR’s Fiscal risks report? Do you agree with these assumptions? Explain.
  3. What is the difference between forecasts and analyses of outcomes?
  4. For what reasons might growth over the next few years be higher than in the IMF forecasts under either scenario?
  5. For what reasons might growth over the next few years be lower than in the IMF forecasts under either scenario?
  6. For what reasons might public-sector net borrowing (PSNB) over the next few years be lower than in the OBR forecast?
  7. For what reasons might PSNB over the next few years be higher than in the OBR forecast?

On 21st February 2019, the Department for International Trade (DIT) published a document outlining the UK’s progress in negotiating new free trade agreements (FTAs) with a number of non-EU countries. It advises UK firms that FTAs with Turkey and Japan will not be finalised before the official exit day from the European Union – 29th March 2019. Many business groups expressed concern at this news.

The EU has successfully negotiated a number of FTAs. These deals enable all 28 states in the European Union Custom Union (EU-CU), including the UK, to trade at preferential (i.e. lower) tariffs with over 70 non-EU countries. These include Canada, South Korea, Mexico, Israel, Norway, South Africa and Turkey. Research by the CBI estimates that UK exports to these countries were approximately £41bn in 2017 – approximately 13 per cent of all UK exports. In July 2018, the EU signed its largest ever FTA – with Japan. This deal covers 635 million people.

If the UK leaves the European Union without a deal on the 29th March, then it immediately loses membership of the EU-CU. Preferential tariffs will no longer apply to trade between the UK and the non-EU countries which signed the FTAs. Without any new arrangements in place, tariffs and quotas will revert to the non-preferential (i.e. higher) rates outlined in registered schedules with the World Trade Organization.

Given the economic significance of this trade, the UK government has spent the past two years trying to negotiate new FTAs to replace those previously agreed by the EU. For example, on February 11th, the government announced that it had signed a ‘continuity agreement’ with Switzerland covering trade worth £32bn per year. Deals have also been finalised with Chile, Israel, and the Faroe Islands that replicate the terms of the EU agreements. However, government officials informed 30 business groups in early February that it was highly unlikely that most of the new replacement FTAs would be concluded in time for March 29th.

The document published by the DIT on the 21st February confirms this position and describes the current status of most of the new FTAs as:

Engagement ongoing

For both Japan and Turkey, the outlook is more negative. The guidance states:

We will not transition this agreement for exit day.

The head of EU negotiations at the CBI commented that:

We are really concerned that firms could be blindsided by this.

The government stated that it would significantly increase the resources devoted to the trade negotiations and expected to sign more deals over the next couple of weeks.

If the UK leaves the EU on the 29th March with a deal, then it remains in the EU-CU during the 21-month transition period. Trade will still be covered by the 40 existing EU deals. This gives UK officials until the end of December 2020 to conclude a new set of FTAs.


Government information


  1. Using a demand and supply diagram, illustrate the impact of tariffs on imported goods.
  2. The EU is perhaps the most famous example of a customs union. Find out some other examples.
  3. Discuss some of the potential disadvantages of free trade.
  4. Discuss some of the advantages and disadvantages of the UK remaining in the European Union Custom Union.
  5. What is a ‘registered schedule’ at the World Trade Organization?

Today’s title is inspired from the British Special Air Service (SAS) famous catchphrase, ‘Who Dares Wins’ – similar variations of which have been adopted by several elite army units around the world. The motto is often credited to the founder of the SAS, Sir David Stirling (although similar phrases can be traced back to ancient Rome – including ‘qui audet adipiscitur’, which is Latin for ‘who dares wins’). The motto was used to inspire and remind soldiers that to successfully accomplish difficult missions, one has to take risks (Geraghty, 1980).

In the world of economics and finance, the concept of risk is endemic to investments and to making decisions in an uncertain world. The ‘no free lunch’ principle in finance, for instance, asserts that it is not possible to achieve exceptional returns over the long term without accepting substantial risk (Schachermayer, 2008).

Undoubtedly, one of the riskiest investment instruments you can currently get your hands on is cryptocurrencies. The most well-known of them is Bitcoin (BTC), and its price has varied spectacularly over the past ten years – more than any other asset I have laid my eyes on in my lifetime.

The first published exchange rate of BTC against the US dollar dates back to 5 October 2009 and it shows $1 to be exchangeable for 1309.03 BTC. On 15 December 2017, 1 BTC was traded for $17,900. But then, a year later the exchange rate was down to just over $1 = $3,500. Now, if this is not volatility I don’t know what is!

In such a market, wouldn’t it be wonderful if you could somehow predict changes in market sentiment and volatility trends? In a hot-off-the press article, Shen et al (2019) assert that it may be possible to predict changes in trading volumes and realised volatility of BTC by using the number of BTC-related tweets as a measure of attention. The authors source Twitter data on Bitcoin from and tick data from Bitstamp, one of the most popular and liquid BTC exchanges, over the period 4/9/2014 to 31/8/2018.

According to the authors:

This measure of investor attention should be more informed than that of Google Trends and therefore may reflect the attention Bitcoin is receiving from more informed investors. We find that the volume of tweets are significant drivers of realised [price] volatility (RV) and trading volume, which is supported by linear and nonlinear Granger causality tests.

They find that, according to Granger causality tests, for the period from 4/9/2014 to 8/10/2017, past days’ tweeting activity influences (or at least forecasts) trading volume. While from 9/10/2017 to 31/8/2018, previous tweets are significant drivers/forecasters of not only trading volume but also realised price volatility.

And before you reach out for your smartphone, let me clarify that, although previous days’ tweets are found in this paper to be good predictors of realised price volatility and trading volume, they have no significant effect on the returns of Bitcoin.




  1. Explain how the number of tweets can be used to gauge investors’ intentions and how it can be linked to changes in trading volume.
  2. Using Google Scholar, make a list of articles that have used Twitter and Google Trends to predict returns, volatility and trading volume in financial markets. Present and discuss your findings.
  3. Would you invest in Bitcoin? Why yes? Why no?

Late January sees the annual global World Economic Forum meeting of politicians, businesspeople and the great and the good at Davos in Switzerland. Global economic, political, social and environmental issues are discussed and, sometimes, agreements are reached between world leaders. The 2019 meeting was somewhat subdued as worries persist about a global slowdown, Brexit and the trade war between the USA and China. Donald Trump, Xi Jinping, Vladimir Putin and Theresa May were all absent, each having more pressing issues to attend to at home.

There was, however, a feeling that the world economic order is changing, with the rise in populism and with less certainty about the continuance of the model of freer trade and a model of capitalism modified by market intervention. There was also concern about the roles of the three major international institutions set up at the end of World War II: the IMF, the World Bank and the WTO (formerly the GATT). In a key speech, Angela Merkel urged countries not to abandon the world economic order that such institutions help to maintain. The world can only resolve disputes and promote development, she argued, by co-operating and respecting the role of such institutions.

But the role of these institutions has been a topic of controversy for many years and their role has changed somewhat. Originally, the IMF’s role was to support an adjustable peg exchange rate system (the ‘Bretton Woods‘ system) with the US dollar as the international reserve currency. It would lend to countries in balance of payments deficit to allow them to maintain their rate pegged to the dollar unless it was perceived to be a fundamental deficit, in which case they were expected to devalue their currency. The system collapsed in 1971, but the IMF continued to provide short-term, and sometimes longer-term, finance to countries in balance of payments difficulties.

The World Bank was primarily set up to provide development finance to poorer countries. The General Agreement on Tariffs and Trade (GATT) and then the WTO were set up to encourage freer trade and to resolve trade disputes.

However, the institutions were perceived with suspicion by many developing countries and by more left-leaning developed countries, who saw them as part of the ‘Washington consensus’. Loans from the IMF and World Bank were normally contingent on countries pursuing policies of market liberalisation, financial deregulation and privatisation.

Although there has been some movement, especially by the IMF, towards acknowledging market failures and supporting a more broadly-based development, there are still many economists and commentators calling for more radical reform of these institutions. They advocate that the World Bank and IMF should directly support investment – public as well as private – and support the Green New Deal.




  1. What was the Bretton Woods system that was adopted at the end of World War II?
  2. What did Keynes propose as an alternative to the system that was actually adopted?
  3. Explain the roles of (a) the IMF, (b) the World Bank, (c) the WTO (formerly the GATT).
  4. What is meant by an adjustable exchange rate system?
  5. Why did the Bretton Woods system collapse in 1971?
  6. How have the roles of the IMF, World Bank and WTO/GATT evolved since they were founded?
  7. What reforms would you suggest to each of the three institutions and why?
  8. What threats are there currently to the international economic order?
  9. Summarise the arguments about the world economic order made by Angela Merkel in her address to the World Economic Forum.