Category: Economics: Ch 26

Posted on

Economic forecasts: are they of any value?

Economic forecasting came in for much criticism at the time of the financial crisis and credit crunch. Few economists had predicted the crisis and its consequences. Even Queen Elizabeth II, on a visit to the London School of Economics in November 2008, asked why economists had got it so wrong. Similar criticisms have emerged since the Brexit vote, with economic forecasters being accused of being excessively pessimistic about the outcome.

The accuracy of economic forecasts was one of the topics discussed by Andy Haldane, Chief Economist at the Bank of England. Speaking at the Institute for Government in London, he compared economic forecasting to weather forecasting (see section from 15’20” in the webcast):

“Remember that? Michael Fish getting up: ‘There’s no hurricane coming but it will be very windy in Spain.’ Very similar to the sort of reports central banks – naming no names – issued pre-crisis, ‘There is no hurricane coming but it might be very windy in the sub-prime sector.” (18’40”)

The problem with the standard economic models which were used for forecasting is that they were essentially equilibrium models which work reasonably well in ‘normal’ times. But when there is a large shock to the economic system, they work much less well. First, the shocks themselves are hard to predict. For example, the sub-prime crisis in 2007/8 was not foreseen by most economists.

Then there is the effect of the shocks. Large shocks are much harder to model as they can trigger strong reactions by consumers and firms, and governments too. These reactions are often hugely affected by sentiment. Bouts of pessimism or even panic can grip markets, as happened in late 2008 with the collapse of Lehman Brothers. Markets can tumble way beyond what would be expected by a calm adjustment to a shock.

It can work the other way too. Economists generally predicted that the Brexit vote would lead to a fall in GDP. However, despite a large depreciation of sterling, consumer sentiment held up better than was expected and the economy kept growing.

But is it fair to compare economic forecasting with weather forecasting? Weather forecasting is concerned with natural phenomena and only seeks to forecast with any accuracy a few days ahead. Economic forecasting, if used correctly, highlights the drivers of economic change, such as government policy or the Brexit vote, and their likely consequences, other things being equal. Given that economies are constantly being affected by economic shocks, including government or central bank actions, it is impossible to forecast the state of the macroeconomy with any accuracy.

This does not mean that forecasting is useless, as it can highlight the likely effects of policies and take into account the latest surveys of, say, consumer and business confidence. It can also give the most likely central forecast of the economy and the likely probabilities of variance from this central forecast. This is why many forecasts use ‘fan charts’: see, for example, Bank of England forecasts.

What economic forecasts cannot do is to predict the precise state of the economy in the future. However, they can be refined to take into account more realistic modelling, including the modelling of human behaviour, and more accurate data, including survey data. But, however refined they become, they can only ever give likely values for various economic variables or likely effects of policy measures.

Webcast

Andy Haldane in Conversation Institute for Government (5/1/17)

Articles

‘Michael Fish’ Comments From Andy Haldane Pounced Upon By Brexit Supporters Huffington Post, Chris York (6/1/17)
Crash was economists’ ‘Michael Fish’ moment, says Andy Haldane BBC News (6/1/17)
The Bank’s ‘Michael Fish’ moment BBC News, Kamal Ahmed (6/1/17)
Bank of England’s Haldane admits crisis in economic forecasting Financial Times, Chris Giles (6/1/17)
Chief economist of Bank of England admits errors in Brexit forecasting BBC News, Phillip Inman (5/1/17)
Economists have completely failed us. They’re no better than Mystic Meg The Guardian, Simon Jenkins (6/1/17)
Five things economists can do to regain trust The Guardian, Katie Allen and Phillip Inman (6/1/17)
Andy Haldane: Bank of England has not changed view on negative impact of Brexit Independent, Ben Chu (5/1/17)
Big data could help economists avoid any more embarrassing Michael Fish moments Independent, Hamish McRae (7/1/17)

Questions

  1. In what ways does economic forecasting differ from weather forecasting?
  2. How might economic forecasting be improved?
  3. To what extent were the warnings of the Bank of England made before the Brexit vote justified? Did such warnings take into account actions that the Bank of England was likely to take?
  4. How is the UK economy likely to perform over the coming months? What assumptions are you making here?
  5. Brexit hasn’t happened yet. Why is it extremely difficult to forecast today what the effects of actually leaving the EU will be on the UK economy once it has happened?
  6. If economic forecasting is difficult and often inaccurate, should it be abandoned?
  7. The Bank of England is forecasting that inflation will rise in the coming months. Discuss reasons why this forecast is likely to prove correct and reasons why it may prove incorrect.
  8. How could economic forecasters take the possibility of a Trump victory into account when making forecasts six months ago of the state of the global economy a year or two ahead?
  9. How might the use of big data transform economic forecasting?
Posted on

Red lines and options on UK trade post Brexit

A paper by three University of Sussex academics has just been published by the university’s UK Trade Policy Observatory (UKTPO). It looks at possible trade relations between the UK and the EU post Brexit. It identifies four key government objectives or constraints – what the authors call ‘red lines’ – and five possible types of trade arrangement with the EU.

The four red lines the authors identify are:

• Limitations on the movement of people/labour;
• An independent trade policy;
• No compulsory budgetary contribution to the EU;
• Legal oversight by UK courts only and not by the European Court of Justice.

Just how tight each of these four constraints should be is a matter for debate and political decision. For example, how extensive the limitations on the movement of labour should be and whether or not there should be any ‘voluntary’ budgetary contributions to the EU are issues where there is scope for negotiation.

Alongside these constraints is the objective of continuing to have as much access to and influence over the Single Market as possible.

The five possible types of trade arrangement with the EU identified in the paper are as follows:

1. Full Customs Union (CU) with the EU-27
2. Partial Customs Union with EU (based on EU-Turkey CU)
3. Free Trade Area (FTA) with access to the Single Market (European Economic Area)
4. Free Trade Area without automatic access to Single Market
5. Reversion to World Trade Organisation (WTO) Most Favoured Nation (MFN) terms

To clarify the terminology: a free trade area (FTA) is simply an agreement whereby member countries have no tariff barriers between themselves but individually can choose the tariffs they impose on imports from non-member countries; a customs union is a free trade area where all members impose common tariffs on imports from non-member countries and individual members are thus prevented from negotiating separate trade deals with non-member countries; membership of the European Economic Area requires accepting freedom of movement of labour and compulsory contributions to the EU budget; WTO Most Favoured Nation rules would involve the UK trading with the EU but with tariffs equal to the most favourable ones granted to other countries outside the EU and EEA.

The red lines would rule out the UK being part of the customs union or the EEA. Although WTO membership would not breach any of the red lines, the imposition of tariffs against UK exports would be damaging. So the option that seems most appealing to many ‘Brexiteers’ is to have a free trade area agreement with the EU and negotiate separate trade deals with other countries.

But even if a tariff-free arrangement were negotiated with the EU, there would still be constraints imposed on UK companies exporting to the EU: goods exported to the EU would have to meet various standards. But this would constrain the UK’s ability to negotiate trade deals with other countries, which might demand separate standards.

The paper and The Economist article explore these constraints and policy alternatives and come to the conclusion that there is no easy solution. The option that looks the best “from the UK government’s point of view and given its red lines, would be an FTA with a variety of special sectoral arrangements”.

Article

Brexit means…a lot of complex trade decisions The Economist, Buttonwood’s notebook (15/11/16)

Paper

UK–EU Trade Relations post Brexit: Too Many Red Lines? UK Trade Policy observatory (UKTPO), Briefing Paper No. 5, Michael Gasiorek, Peter Holmes and Jim Rollo (November 2016)

Questions

  1. Explain the difference between a free trade area, a customs union and a single market.
  2. Go through each of the four red lines identified in the paper and consider what flexibility there might be in meeting them.
  3. What problems would there be in operating a free trade agreement with the EU while separately pursuing trade deals with other countries?
  4. What is meant by ‘mutual recognition’ and what is its significance in setting common standards in the Single Market?
  5. What problems are likely to arise in protecting the interests of the UK’s service-sector exports in a post-Brexit environment?
  6. What does the EU mean by ‘cherry picking’ in terms of trade arrangements? How might the EU’s attitudes in this regard constrain UK policy?
  7. Does the paper’s analysis suggest that a ‘hard Brexit’ is inevitable?
Posted on

Brexit: the economic consequences

The UK has voted to leave the EU by 17 410 742 votes (51.9% or 37.4% of the electorate) to 16 141 241 votes (48.1% or 34.7% of the electorate). But what will be the economic consequences of the vote?

To leave the EU, Article 50 must be invoked, which starts the process of negotiating the new relationship with the EU. This, according to David Cameron, will happen when a new Conservative Prime Minister is chosen. Once Article 50 has been invoked, negotiations must be completed within two years and then the remaining 27 countries will decide on the new terms on which the UK can trade with the EU. As explained in the blog, The UK’s EU referendum: the economic arguments, there are various forms the new arrangements could take. These include:

‘The Norwegian model’, where Britain leaves the EU, but joins the European Economic Area, giving access to the single market, but removing regulation in some key areas, such as fisheries and home affairs. Another possibility is ‘the Swiss model’, where the UK would negotiate trade deals on an individual basis. Another would be ‘the Turkish model’ where the UK forms a customs union with the EU. At the extreme, the UK could make a complete break from the EU and simply use its membership of the WTO to make trade agreements.

The long-term economic effects would thus depend on which model is adopted. In the Norwegian model, the UK would remain in the single market, which would involve free trade with the EU, the free movement of labour between the UK and member states and contributions to the EU budget. The UK would no longer have a vote in the EU on its future direction. Such an outcome is unlikely, however, given that a central argument of the Leave camp has been for the UK to be able to control migration and not to have to pay contributions to the EU budget.

It is quite likely, then, that the UK would trade with the EU on the basis of individual trade deals. This could involve tariffs on exports to the EU and would involve being subject to EU regulations. Such negotiations could be protracted and potentially extend beyond the two-year deadline under Article 50. But for this to happen, there would have to be agreement by the remaining 27 EU countries. At the end of the two-year process, when the UK exits the EU, any unresolved negotiations would default to the terms for other countries outside the EU. EU treaties would cease to apply to the UK.

It is quite likely, then, that the UK would face trade restrictions on its exports to the EU, which would adversely affect firms for whom the EU is a significant market. Where practical, some firms may thus choose to relocate from the UK to the EU or move business and staff from UK offices to offices within the EU. This is particularly relevant to the financial services sector. As the second Economist article explains:

In the longer run … Britain’s financial industry could face severe difficulties. It thrives on the EU’s ‘passport’ rules, under which banks, asset managers and other financial firms in one member state may serve customers in the other 27 without setting up local operations. …

Unless passports are renewed or replaced, they will lapse when Britain leaves. A deal is imaginable: the EU may deem Britain’s regulations as ‘equivalent’ to its own. But agreement may not come easily. French and German politicians, keen to bolster their own financial centres and facing elections next year, may drive a hard bargain. No other non-member has full passport rights.

But if long-term economic effects are hard to predict, short-term effects are happening already.

The pound fell sharply as soon as the results of the referendum became clear. By the end of the day it had depreciated by 7.7% against the dollar and 5.7% against the euro. A lower pound will make imports more expensive and hence will drive up prices and reduce the real value of sterling. On the other had, it will make exports cheaper and act as a boost to exports.

If inflation rises, then the Bank of England may raise interest rates. This could have a dampening effect on the economy, which in turn would reduce tax revenues. The government, if it sticks to its fiscal target of achieving a public-sector net surplus by 2020 (the Fiscal Mandate), may then feel the need to cut government expenditure and/or raise taxes. Indeed, the Chancellor argued before the vote that such an austerity budget may be necessary following a vote to leave.

Higher interest rates could also dampen house prices as mortgages became more expensive or harder to obtain. The exception could be the top end of the market where a large proportion are buyers from outside the UK whose demand would be boosted by the depreciation of sterling.

But given that the Bank of England’s remit is to target inflation in 24 month’s time, it is possible that any spike in inflation is temporary and this may give the Bank of England leeway to cut Bank Rate from 0.5% to 0.25% or even 0% and/or to engage in further quantitative easing.

One major worry is that uncertainty may discourage investment by domestic companies. It could also discourage inward investment, and international companies many divert investment to the EU. Already some multinationals have indicated that they will do just this. Shares in banks plummeted when the results of the vote were announced.

Uncertainty is also likely to discourage consumption of durables and other big-ticket items. The fall in aggregate demand could result in recession, again necessitating an austerity budget if the Fiscal Mandate is to be adhered to.

We live in ‘interesting’ times. Uncertainty is rarely good for an economy. But that uncertainty could persist for some time.

Articles

Why Brexit is grim news for the world economy The Economist (24/6/16)
International banking in a London outside the European Union The Economist (24/6/16)
What happens now that Britain has voted for Brexit The Economist (24/6/16)
Britain and the EU: A tragic split The Economist (24/6/16)
Brexit in seven charts — the economic impact Financial Times, Chris Giles (21/6/16)
How will Brexit result affect France, Germany and the rest of Europe? Financial Times, Anne-Sylvaine Chassany, Stefan Wagstyl, Duncan Robinson and Richard Milne (24/6/16)
How global markets are reacting to UK’s Brexit vote Financial Times, Michael Mackenzie and Eric Platt (24/6/16)
Brexit: What happens now? BBC News (24/6/16)
How will Brexit affect your finances? BBC News, Brian Milligan (24/6/16)
Brexit: what happens when Britain leaves the EU Vox, Timothy B. Lee (25/6/16)
An expert sums up the economic consensus about Brexit. It’s bad. Vox, John Van Reenen (24/6/16)
How will the world’s policymakers respond to Brexit? The Telegraph, Peter Spence (24/6/16)
City of London could be cut off from Europe, says ECB official The Guardian, Katie Allen (25/6/16)
Multinationals warn of job cuts and lower profits after Brexit vot The Guardian, Graham Ruddick (24/6/16)
How will Brexit affect Britain’s trade with Europe? The Guardian, Dan Milmo (26/6/16)
Britain’s financial sector reels after Brexit bombshell Reuters, Sinead Cruise, Andrew MacAskill and Lawrence White (24/6/16)
How ‘Brexit’ Will Affect the Global Economy, Now and Later New York Times, Neil Irwin (24/6/16)
Brexit results: Spurned Europe wants Britain gone Sydney Morning Herald, Nick Miller (25/6/16)
Economists React to ‘Brexit’: ‘A Wave of Economic and Political Uncertainty’ The Wall Street Journal, Jeffrey Sparshott (24/6/16)
Brexit wound: UK vote makes EU decline ‘practically irreversible’, Soros says CNBC, Javier E. David (25/6/16)
One month on, what has been the impact of the Brexit vote so far? The Guardian (23/7/16)

Questions

  1. What are the main elements of a balance of payments account? Changes in which elements caused the depreciation of the pound following the Brexit vote? What elements of the account, in turn, are likely to be affected by the depreciation?
  2. What determines the size of the effect on the current account of the balance of payments of a depreciation? How might long-term effects differ from short-term ones?
  3. Is it possible for firms to have access to the single market without allowing free movement of labour?
  4. What assumptions were made by the Leave side about the economic effects of Brexit?
  5. Would it be beneficial to go for a ‘free trade’ option of abolishing all import tariffs if the UK left the EU? Would it mean that UK exports would face no tariffs from other countries?
  6. What factors are likely to drive the level of investment in the UK (a) by domestic companies trading within the UK and (b) by multinational companies over the coming months?
  7. What will determine the course of monetary policy over the coming months?
Posted on

The UK’s EU referendum: the economic arguments

Many of the arguments used by both sides in the referendum debate centre on whether there will be a net economic gain from either remaining in or leaving the EU. This involves forecasting.

Forecasting the economic impact of the decision, however, is difficult, especially in the case of a leave vote, which would involve substantial change and uncertainty.

First, the effects of either remaining or leaving may be very different in the long run from the short run, and long-run forecasts are highly unreliable, as the economy is likely to be affected by so many unpredictable events – few people, for example, predicted the financial crisis of 2007–8.

Second, the effects of leaving depend on the nature of any future trading relationships with the EU. Various possibilities have been suggested, including ‘the Norwegian model’, where Britain leaves the EU, but joins the European Economic Area, giving access to the single market, but removing regulation in some key areas, such as fisheries and home affairs. Another possibility is ‘the Swiss model’, where the UK would negotiate trade deals on an individual basis. Another would be ‘the Turkish model’ where the UK forms a customs union with the EU. At the extreme, the UK could make a complete break from the EU and simply use its membership of the WTO to make trade agreements.

Nevertheless, despite the uncertainty, economists have ventured to predict the effects of remaining or leaving. These are not precise predictions for the reasons given above. Rather they are based on likely assumptions.

In a poll of 100 economists for the Financial Times, ‘almost three-quarters thought leaving the EU would damage the country’s medium-term outlook, nine times more than the 8 per cent who thought the country would benefit from leaving’. Most fear damage to financial markets in the UK and to inward foreign direct investment.

Despite the barrage of pessimistic forecasts by economists about a British exit, there is a group of eight economists in favour of Brexit. They claim that leaving the EU would lead to a stronger economy, with higher GDP, a faster growth in real wages, lower unemployment and a smaller gap between imports and exports. The main argument they use to support their claims is that the UK would be more able to pursue trade creation freed from various EU rules and regulations.

Then, less than four weeks before the vote, a poll of economists who are members of the Royal Economic Society and the Society of Business Economists came out strongly in favour of continued membership of the EU. Of the 639 respondents, 72 per cent thought that the most likely impact of Brexit on UK real GDP would be negative over the next 10 to 20 years; and 88 per cent thought the impact on GDP would be negative in the next five years (see chart: click to enlarge).

Of those stating that a negative impact on GDP in the next 5 years would be most likely, a majority cited loss of access to the single market (67%) and increased uncertainty leading to reduced investment (66%).

The views of the majority of economists accord with those of various organisations. Domestic ones, such as the Bank of England, the Treasury (see the blog Brexit costs), the Institute for Fiscal Studies and the National Institute for Economic and Social Research (NIESR) all warn that Brexit would be likely to result in lower growth – possibly a recession – increased unemployment, a fall in the exchange rate and higher prices and that greater economic uncertainty would damage investment.

International organisations, such as the OECD, the IMF and the WTO, also argue that leaving the EU would create great uncertainty over future trade relations and access to the Single Market and would reduce inward foreign direct investment and the flow of skills.

But the forecasts of all these organisations depend on their assumptions about trade relations and that, in the event of the UK leaving the EU, would depend on the outcome of trade negotiations. The Leave campaign argues that other countries would want to trade with the UK and that therefore leaving would not damage trade. The Remain campaign argues that the EU would not wish to be generous to the UK for fear of encouraging other countries to leave the EU and that, anyway, the process of decoupling from the EU and negotiating new trade deals would take many years and, in the meantime, the uncertainty would be damaging to investment and growth.

The articles linked below looks at the economic arguments about Brexit and reflect the range of views of economists. Several are from ‘The Conversation’ as these are by academic economists. Although some economists are in favour of Brexit, the vast majority support the Remain side in the debate.

Articles

EU referendum: Pros and cons of Britain voting to leave Europe The Week (4/5/16)
The fatal contradictions in the Remain and Leave camps The Economist (3/6/16)
Four reasons a post-Brexit UK can’t copy Norway or Switzerland The Telegraph, Andrew Sentance (10/6/16)
What will Brexit do to UK trade? Independent, Ben Chu (2/6/16)
Leavers may not like economists but we are right about Brexit Institute for Fiscal Studies, Paul Johnson (9/6/15)
Why Brexit supporters should take an EU-turn – just like I did The Conversation, Wilfred Dolfsma (8/6/16)
The economic case for Brexit The Conversation, Philip B. Whyman (28/4/16)
Fact Check: do the Treasury’s Brexit numbers add up? The Conversation, Nauro Campos (20/4/16)
Which Brexit forecast should you trust the most? An economist explains The Conversation, Nauro Campos (25/4/16)
Why is the academic consensus on the cost of Brexit being ignored? The Conversation, Simon Wren-Lewis (17/5/16)
How Brexit would reduce foreign investment in the UK – and why that matters The Conversation, John Van Reenen (15/4/16)
The consensus on modelling Brexit NIESR, Jack Meaning, Oriol Carreras, Simon Kirby and Rebecca Piggott (23/5/16)

Reports, Press Conferences, etc.
Economists’ forecasts: Brexit would damage growth Financial Times, Chris Giles and Emily Cadman (3/1/16)
The Economy After Brexit, Economists for Brexit
Economists’ Views on Brexit Ipsos MORI (28/5/16)
Inflation Report Bank of England (May 2016)
EU referendum: HM Treasury analysis key facts HM Treasury (18/4/16)
Brexit and the UK’s public finances Institute for Fiscal Studies, Carl Emmerson , Paul Johnson , Ian Mitchell and David Phillips (25/5/16)
The Long and the Short of it: What price UK Exit from the EU? NIESR, Oriol Carreras, Monique Ebell, Simon Kirby, Jack Meaning, Rebecca Piggott and James Warren (12/5/16)
The Economic Consequences of Brexit: A Taxing Decision OECD (27/4/16)
Transcript of the Press Conference on the Release of the April 2016 World Economic Outlook IMF (12/4/16)
Macroeconomic implications of the United Kingdom leaving the Euroepan Union IMF Country Report 16/169 (1/6/16)
WTO warns on tortuous Brexit trade talks Financial Times, Shawn Donnan (25/5/16)

Questions

  1. Summarise the main economic arguments of the Remain side.
  2. What assumptions are made by the Remain side about Brexit?
  3. Summarise the main economic arguments of the Leave side.
  4. What assumptions are made by the Leave side about Brexit?
  5. Assess the realism of the assumptions of the two sides.
  6. If the UK exited the EU, would it be possible to continue gaining the benefits of the single market while restricting the free movement of labour?
  7. Would it be beneficial to go for a ‘free trade’ option of abolishing all import tariffs if the UK left the EU? Would it mean that UK exports would face no tariffs from other countries?
  8. If forecasting is unreliable, does this mean that nothing can be said about the costs and benefits of Brexit? Explain.