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.
Andy Haldane in Conversation Institute for Government (5/1/17)
‘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)
- In what ways does economic forecasting differ from weather forecasting?
- How might economic forecasting be improved?
- 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?
- How is the UK economy likely to perform over the coming months? What assumptions are you making here?
- 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?
- If economic forecasting is difficult and often inaccurate, should it be abandoned?
- 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.
- 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?
- How might the use of big data transform economic forecasting?
Some commentators have seen the victory of Donald Trump and, prior to that, the Brexit vote as symptoms of a crisis in capitalism. Much of the campaigning in the US election, both by Donald Trump on the right and Bernie Sanders on the left focused on the plight of the poor. Whether the blame was put on immigration, big government, international organisations, the banks, cheap imports undercutting jobs or a lack of social protection, the message was clear: capitalism is failing to improve the lot of the majority. A small elite is getting significantly richer while the majority sees little or no gain in their living standards and a rise in uncertainty.
The articles below look at this crisis. They examine the causes, which they agree go back many years as capitalism has evolved. The financial crash of 2008 and the slow recovery since are symptomatic of the underlying changes in capitalism.
The Friedman article focuses on the slowing growth in technological advance and the problem of aging populations. What technological progress there is is not raising incomes generally, but is benefiting a few entrepreneurs and financiers. General rises in income may eventually come, but it may take decades before robotics, biotechnological advances, e-commerce and other breakthrough technologies filter through to higher incomes for everyone. In the meantime, increased competition through globalisation is depressing the incomes of the poor and economically immobile.
All the articles look at the rise of the rich. The difference with the past is that the people who are gaining the most are not doing so from production but from financial dealing or rental income; they have gained while the real economy has stagnated.
The gains to the rich have come from the rise in the value of assets, such as equities (shares) and property, and from the growth in rental incomes. Only a small fraction of finance is used to fund business investment; the majority is used for lending against existing assets, which then inflates their prices and makes their owners richer. In other words, the capitalist system is moving from driving growth in production to driving the inflation of asset prices and rental incomes.
The process whereby financial markets grow and in turn drive up asset prices is known as ‘financialisation’. Not only is the process moving away from funding productive investment and towards speculative activity, it is leading to a growth in ‘short-termism’. The rewards of senior managers often depend on the price of their companies’ shares. This leads to a focus on short-term profit and a neglect of long-term growth and profitability – to a neglect of investment in R&D and physical capital.
The process of financialisation has been driven by deregulation, financial innovation, the growth in international financial flows and, more recently, by quantitative easing and low interest rates. It has led to a growth in private debt which, in turn, creates more financial instability. The finance industry has become so profitable that even manufacturing companies are moving into the business of finance themselves – often finding it more profitable than their core business. As the Foroohar article states, “the biggest unexplored reason for long-term slower growth is that the financial system has stopped serving the real economy and now serves mainly itself.”
So will the election of Donald Trump, and pressure from populism in other countries too, mean that governments will focus more on production, job creation and poverty reduction? Will there be a movement towards fiscal policy to drive infrastructure spending? Will there be a reining in of loose monetary policy and easy credit?
Or will addressing the problem of financialisation and the crisis of capitalism result in the rich continuing to get richer at the expense of the poor, but this time through more conventional channels, such as increased production and monopoly profits and tax cuts for the rich? Trump supporters from among the poor hope the answer is no. Those who supported Bernie Sanders in the Democratic primaries think the answer will be yes and that the solution to over financialisation requires more, not less, regulation, a rise in minimum wages and fiscal policies aimed specifically at the poor.
Can Global Capitalism Be Saved? Project Syndicate, Alexander Friedman (11/11/16)
American Capitalism’s Great Crisis Time, Rana Foroohar (12/5/16)
The Corruption of Capitalism by Guy Standing review – work matters less than what you own The Guardian, Katrina Forrester (26/10/16)
- Do you agree that capitalism is in crisis? Explain.
- What is meant by financialisation? Why has it grown?
- Will the policies espoused by Donald Trump help to address the problems caused by financialisation?
- What alternative policies are there to those of Trump for addressing the crisis of capitalism?
- Explain Schumpeter’s analysis of creative destruction.
- What technological innovations that are currently taking place could eventually benefit the poor as well as the rich?
- What disincentives are there for companies investing in R&D and new equipment?
- What are the arguments for and against a substantial rise in the minimum wage?
Can behavioural economics be applied to the case of Sweden? The Swedish government is trying this out by changing government policy in a way that may encourage its residents to change their behaviour.
People in many countries in the world live in what is often called a ‘throwaway society’. If something breaks, it’s often easier and cheaper simply to get rid of it and buy a new one. But with changes in government policy, including VAT cuts on repairs to white goods, the objective is to encourage consumers to repair their goods, rather than buying new ones. This is also contributing towards the wider objective of sustainable consumption, which is being promoted by the Swedish government.
Per Bolund, who is one of Sweden’s six Green Ministers, spoke about this policy commenting that:
“Consumers are quite active in changing both what they buy and how they buy in Sweden … We believe that getting lower costs for labour is a big part in making it more rational to repair rather than just to buy cheap and throw away …If we don’t change the economic incentives the change will never come.”
Whether or not this policy works will take some time to see, but it’s certainly an interesting test of how changing incentives affect consumer behaviour. You can read about other examples of nudging in the following blog A nudge in the right direction?.
Waste not want not: Sweden to give tax breaks for repairs The Guardian, Richard Orange (19/9/16)
Can Sweden tackle the throwaway society? BBC News (20/9/16)
Trendy now, trash tomorrow Huffington Post, Kirsten Brodde (29/9/16)
Hong Kong needs a strategy quickly for dealing with waste South China Morning Post (27/9/16)
- If VAT on repairs falls, how will this affect consumer behaviour?
- Do you think there would be an income and a substitution effect from this change in government policy? What would they be?
- How is the Swedish government using incentives to change consumer behaviour?
- If it is cheaper to buy a new white good, then is it rational to buy a new one rather than repair an existing one?
- How effective do you think this policy would be in encouraging consumers to change their behaviour?
- Find some other examples of how people might be nudged to behave in ways that are in their own interest or that of society.
Behavioural economists study how people’s buying, selling and other behaviour responds to various incentives and social situations. They don’t accept the simplistic notion that people are always rational maximisers. As the Livemint article below states, “According to behavioural economists, the human brain neither has the time nor the ability to process all the information involved in decision making, as assumed by the rational model.” Instead, rationality is bounded: people use simple rules of thumb in making decisions – rules they have developed over time in the light of experience.
So can people’s behaviour be altered by understanding their limited rationality? Advertisers are only too well aware of a number of psychological ‘tricks’ to change people’s purchasing behaviour. For example, wanting to be approved of by your friends is used by advertisers to sell various fashion products and toiletries. Often, people need only a relatively small ‘nudge’ to change the way they behave.
And it is not just advertisers who are using the insights of behavioural economics. Governments are increasingly trying to find ways of nudging people to behave in ways that are better for themselves or for society.
In 2010, David Cameron set up a ‘Nudge Unit’, formally know as ‘The Behavioural Insights Team‘. It has produced a number of academic papers on topics as diverse as tax compliance, incentives for university attendance, charitable giving in the workplace and using SMS reminders to reduce missed hospital appointments. The academic evidence can then be use as the basis for policy.
Another nudge unit has been set up in Australia (see second article below). The USA, Singapore and various other countries are increasingly using the insights of behavioural economics to devise policy to affect human behaviour.
Two recent pieces of work by the UK team concern ways of discouraging doctors from over-prescribing antibiotics and using encouraging text messages to FE students to reduce dropout rates. Another nudge has been used by the tax authorities (HMRC) who have been sending out texts to remind people to pay their taxes on time and to make them aware that they are being monitored. The message read, “Most people pay on time to avoid penalties”.
The articles below look at these recent initiatives and how human behaviour can be changed in a relatively low-cost way. In most cases this involves a simple nudge.
Nudge-unit trials reveal best ways to prod people Sydney Morning Herald, Nick Miller (29/8/15)
Government ‘nudge unit’ to attempt to change people’s behaviours Sydney Morning Herald, Nick Miller (15/9/16)
New frontiers of human behaviour Livemint, Biju Dominic (15/9/16)
Doctors ‘nudged’ into prescribing far fewer antibiotics New Scientist (15/9/16)
GPs handing out fewer antibiotics after warning of over-prescribing, says study BT (15/9/16)
Study of colleges shows ‘encouraging’ texts dramatically cut dropout rates FE Week, Paul Offord (22/7/15)
The text messages getting teenagers better grades BBC Today Programme, David Halpern and Fiona Morey (15/9/16)
Ping! Pay your tax now or face a penalty. HMRC sends out ‘threatening’ SMS texts to taxpayers The Telegraph, Christopher Hope (15/9/16)
Publications of Behavioural Insights Team
Publications list BIT
The Behavioural Insights Team’s Update Report: 2015–16: overview BIT (15/9/16)
The Behavioural Insights Team’s Update Report: 2015–16 BIT (15/9/16)
- Explain what is meant by bounded rationality.
- Give some examples from your own behaviour of decisions made using rules of thumb.
- Should we abandon models based on the assumption of rational maximising behaviour (e.g. attempts to maximise consumer surplus or to maximise profit)?
- Find out some other examples of how people might be nudged to behave in ways that are in their own interest or that of society.
- How might people be nudged to eat more healthily or to give up smoking?
- To what extent can financial incentives, such as taxes, fines, grants or subsidies be regarded nudging? Explain.
- Why, do you think, the message by an Australian hospital, “if you attend, the hospital will not lose the $125 we lose when a patient does not turn up” was successful in reducing missed appointments by 20%, while the message, “if you do not attend, the hospital loses $125” was not as effective?
Before the referendum, economists overwhelmingly argued that the economic case for the UK remaining in the EU was much stronger than that for leaving. They warned of serious economic consequences, both short term and long term, of a Brexit vote. And yet, by a majority of 51.9% to 48.1% of the 72.1% of the electorate who voted, the UK voted to leave the EU.
Does this mean that economists failed to communicate to the electorate? Were the arguments presented poorly or in too academic a way?
Or did people simply not believe the economists’ forecasts, being cynical about the ability of economists to forecast? During the campaign, on several occasions I heard people repeating the joke that economists had successfully predicted five out of the last two recessions!
Did they not believe the data that immigrants from other EU countries to the UK contribute more in taxes they draw in benefits and that overall they make a net positive contribution to output per head? Or perhaps they believed the claims that immigrants imposed a net cost on the economy.
Or were there ‘non-economic’ issues that people found more persuasive, such as questions of sovereignty or national identity? Or was the strain on local resources, such as health services, schools and housing, blamed on immigration itself rather than on a lack of spending on additional resources – the funding for which could have come from the extra GDP generated by the immigration?
Or were there so many lies told by politicians and those with vested interests that people simply didn’t know whom to believe?
Economists will, no doubt, do a lot of soul searching over the coming months. One such economist is Paul Johnson, Director of the Institute for Fiscal Studies, whose article is linked below.
We economists must face the plain truth that the referendum showed our failings Institute for Fiscal Studies newspaper articles. Paul Johnson (28/6/16)
- In what ways could economists have communicated better to the general public during the referendum campaign?
- For what reasons may people distrust economists?
- Were economists hampered in delivering their message by ‘balanced reporting’?
- Comment on Paul Johnson’s statement that, ‘The most politically engaged of us spend decades working out how to tweak tax policy, or labour market policy, or competition policy to deliver small benefits. How many times over would our work have been repaid if we had simply convinced a few more people of the basics?’
- Do economists, or at least some of them, need to become more ‘media savvy’?
- How could institutions, such as the Royal Economic Society and the Society of Business Economists, do more to help economists collectively to communicate with the general public?
- Give some examples of the terminology/jargon we use which might be inappropriate for communicating with the general public. Suggest some alternative terms to the examples you’ve given.