One of the key developments in economics in recent years has been the growing influence of behavioural economics. We considered some of the insights of behavioural economics in a blog in 2016 (A nudge in the right direction?). As the post stated, ‘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.’ The post quoted from a Livemint article (see first linked article below):
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, people use heuristics. A heuristic technique is any approach to problem-solving, such as deciding what to buy, which is practical and sufficient for the purpose, but not necessarily optimal. For example, people may resort to making the best guess, or to drawing on past experiences of similar choices that turned out to be good or bad. On other accasions, when people are likely to face similar choices in the future, they resort to trial and error. They try a product. If they like it, they buy it again; if not, they don’t.
On other occasions, they may use various rules of thumb: buying what their friends do, or buying products on offer or buying trusted brands. These rules of thumb can lead to estimates that are reasonably close to the utility people will actually get and can save on time and effort. However, they sometimes lead to systematic and predictable misjudgements about the likelihood of certain events occurring.
In traditional models of consumer choice, individuals aim to maximise their utility when choosing between goods, or bundles of goods. The context in which the choices are offered is not considered.
Yet, in real life, we see that context is important; people will often make different choices when they are presented, or framed, in different ways. For example, people will buy more of a good when it is flagged up as a special offer than they would if there is no mention of an offer, even though the price is the same.
The recognition that framing is important to choices has led to the development of nudge theory. Indeed, it underpins many marketing techniques. These seek to persuade people to make a particular choice by framing it in an optimistic way or presenting it in a way that makes it easy to decide.
Governments too use nudge theory. In the UK, the Coalition government (2010–15) established the Behavioural Insights Team (BIT) (also unofficially known as the Nudge Unit) in the Cabinet Office in 2010. A major objective of this team is to use ideas from behavioural economics to design policies that enable people to make better choices for themselves.
The podcast linked below, looks at the use of nudge theory. The presenter, Mary Ann Sieghart looks at how we are being encouraged to change our behaviour. She also looks at the work of UCL’s Love Lab which researches the way we make decisions. As the programme notes state:
Mary Ann is grilled in UCL’s Love Lab to find out how she makes decisions; she finds taking the pound signs off the menu in a restaurant encourages her spend more and adding adjectives to the food really makes it taste better.
Walking through the Nudge Unit, she hears how powerful a tiny tweak on a form or text can get be, from getting people back to work to creating a more diverse police force. Popular with the political left and right, it has been embraced around the world; from Guatemala to Rwanda, Singapore to India it is used to reduce energy consumption, encourage organ donation, combat corruption and even stop civil wars.
But the podcast also looks at some of the darker sides of nudging. Just as we can be nudged into doing things in our interests, so too we can be nudged to do things that are not so. Politicians and businesses may seek to manipulate people to get them to behave in ways that suit the government or the business, rather than the electorate or the consumer. The dark arts of persuasion are also something that behavioural economists study.
The articles below explore some of the areas where nudge theory is used to devise policy to influence our behaviour – for good or bad.
- New frontiers of human behaviour
Livemint, Biju Dominic (15/9/16)
- It’s been 10 years since behavioral economics hit the mainstream
Quartz, Dan Kopf (13/10/18)
- What is ‘nudge theory’ and why should we care? Explaining Richard Thaler’s Nobel economics prize-winning concept
Independent, Ben Chu (9/10/17)
- Is Nudge Theory The Answer To Our Single-Use Plastics Problem?
HuffPost, Ollie Boesen (15/6/18)
- Re-enrolment key to ‘nudge’ UK into saving: survey
Investment and Pensions Europe Magazine (IPE), Elizabeth Pfeuti (22/10/18)
- Applying nudge strategies to higher education
Times Higher Education, Ben Castleman (6/7/18)
- Want to nudge others to install solar? Actions speak louder than words
Phys.org, Kevin Dennehy (25/10/18)
- DNA test and phone app to ‘nudge’ Waitrose shoppers towards healthier food
Imperial College London News, Caroline Brogan (12/10/18)
- “Nudge theory” explored to boost medication adherence
AMA Wire, Sara Berg (29/6/18)
- Simple ‘nudge’ letters can boost school attendance, new research suggests
The Seattle Times, Neal Morton (5/7/18)
- Using Behavioral Nudges to Treat Diabetes
Harvard Business Review, Thomas H. Davenport, James Guszcza and Greg Szwartz (10/10/18)
- Why nudge theory works until a kick in the backside is needed.
The Guardian, Andrew Rawnsley (22/10/17)
- Why Nudging Your Customers Can Backfire
Harvard Business Review, Utpal M. Dholakia (15/4/16)
- Explain what are meant by ‘bounded rationality’ and ‘heuristics’.
- How may populist politicians use nudge theory in their campaigning?
- 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 we be nudged into using less plastic?
- 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 as nudging? Explain.
- Would you advise all GP surgeries and hospital outpatient departments to text reminders to people about appointments? What should such reminders say? Explain.
Would you like to be a millionaire? Of course you would – who wouldn’t, right? Actually the answer to this question may be more complicated than you might think (see for instance Sgroi et al (2017) on the economics of happiness: see linked article below), but, generally speaking, most people would answer positively to this question.
What if I told you, however, that you could become a millionaire (actually, scratch that – think big – make that “trillionaire”) overnight and be deeply unhappy about it? If you don’t believe me see what happened to Zimbabwe 10 years ago, when irresponsible money printing and fiscal easing drove the country’s economy to staggering hyperinflation (see the blogs A remnant of hyperinflation in Zimbabwe and Fancy a hundred trillion dollar note?. At the peak of the crisis, prices were increasing by a factor of 130 each year. I have in my office a 100 trillion Zimbabwean dollar note (see below) which I show in my lectures when I talk about hyperinflation to my first year Economics for Business students (if you are one of them, make sure not to miss it next February at UEA!). How much is this 100 trillion note worth? Nothing (except, may be, for collectors). It has been withdrawn from circulation as it ended up not even being worth the cost of the paper on which it was printed.
The Zimbabwean economy managed to pull itself out of this spiral of economic death, partly by informally replacing its hyperinflationary currency with the US greenback, and partly by keeping its fiscal spending under control and reverting to more sane economic policy making. That lasted until 2013, after which the government launched a Zimbabwean digital currency (known as “Zollar”) that had a nominal value set equal to a US dollar; and forced its exporters to exchange their greenbacks for Zollars. It then started spending these USD to finance a very ambitious and unsustainable programme of fiscal expansion.
The Economist published yesterday a story that shows the results of this policy – wild price increases and empty supermarket shelves are both back. According to the newspaper’s report:
At a supermarket in Harare, Zimbabwe’s capital, the finance minister is staring aghast at a pack of nappies. ‘This is absolutely ridiculous!’, exclaims Mthuli Ncube. ‘$49!’ A manager says it cost $23 two weeks ago, before pointing out other eye-watering items such as $20 Coco Pops. […] Over the past two weeks zollars have been trading at as little as 17 cents to the dollar. The devaluation has led to a surge in prices—and not just in imported goods like nappies. Football fans attending the Zimbabwe v Democratic Republic of Congo game on October 16th were shocked to learn that ticket prices had doubled on match day.
How long will it take for the 100 trillion Zollar to make its appearance again? We shall find out. I am sure Zimbabweans will be less than thrilled!
Articles and Report
- A fist full of zollars: Zimbabwe’s shops are empty and prices are soaring
The Economist (28/10/18)
- Shelves Empty as Specter of Hyperinflation Stalks Zimbabwe
Bloomberg, Paul Wallace, Godfrey Marawanyika and Desmond Kumbuka (12/10/18)
- imbabwe currency crisis: No cash, no bread, no KFC
BBC News, Andrew Harding (12/10/18)
- Hyperinflation in Zimbabwe: money demand, seigniorage and aid shocks
Journal of Applied Economics, Tara McIndoe-Calder (Volume 50, Issue 15, 18/9/17)
- Understanding Happiness
A CAGE Policy Report: Social Market Foundation, Daniel Sgroi, Thomas Hills, Gus O’Donnell, Andrew Oswald and Eugenio Proto (January 2017)
- Using an AS/AD diagram, explain the concept of hyperinflation. How can irresponsible fiscal policy-making lead to hyperinflation?
- What are the effects of hyperinflation on the people who live in the affected countries? Search the web for examples and case studies, and use them to support your answer.
- Once it has started, what policies can be used to fight hyperinflation? Use examples to support your answer.
- How does speculation affect hyperinflation?
Oil prices have been rising in recent weeks. With Brent crude currently at around $85 per barrel, some commentators are predicting the price could reach $100. At the beginning of the year, the price was $67 per barrel; in June last year it was $44. In January 2016, it reached a low of $26. But what has caused the price to increase?
On the demand side, the world economy has been growing relatively strongly. Over the past three years, global growth has averaged 3.5%. This has helped to offset the effects of more energy efficient technologies and the gradual shift away from oil to alternative sources of energy.
On the supply side, there have been growing constraints.
The predicted resurgence of shale oil production, after falls in both output and investment when oil prices were low in 2016, has failed to materialise as much as expected. The reason is that pipeline capacity is limited and there is very little scope for transporting more oil from the major US producing area – the Permian basin in West Texas and SE New Mexico. There are similar pipeline capacity constraints from Canadian shale fields. The problem is compounded by shortages of labour and various inputs.
But perhaps the most serious supply-side issue is the renewed sanctions on Iranian oil exports imposed by the Trump administration, due to come into force on 4 November. The USA is also putting pressure on other countries not to buy Iranian oil. Iran is the world’s third largest oil exporter.
Also, there has been continuing turmoil in the Venezuelan economy, where inflation is currently around 500 000 per cent and is expected to reach 1 million per cent by the end of the year. Consequently, the country’s oil output is down. Production has fallen by more than a third since 2016. Venezuela was the world’s third largest oil producer.
Winners and losers from high oil prices
The main gainers from high oil prices are the oil producing countries, such as Russia and Saudi Arabia. It will also encourage investment in oil exploration and new oil wells, and could help countries, such as Colombia, with potential that is considered underexploited. However, given that the main problem is a lack of supply, rather than a surge in demand, the gains will be more limited for those countries, such as the USA and Canada, suffering from supply constraints. Clearly there will be no gain for Iran.
In terms of losers, higher oil prices are likely to dampen global growth. If the oil price reaches $100 per barrel, global growth could be around 0.2 percentage points lower than had previously been forecast. In its latest World Economic Outlook, published on 8 October, the IMF has already downgraded its forecast growth for 2018 and 2019 to 3.7% from the 3.9% it forecast six months ago – and this forecast is based on the assumption that oil prices will be $69.38 a barrel in 2018 and $68.76 a barrel in 2019.
Clearly, the negative effect will be greater, the larger a country’s imports are as a percentage of its GDP. Countries that are particularly vulnerable to higher oil prices are the eurozone, Japan, China, India and most other Asian economies. Lower growth in these countries could have significant knock-on effects on other countries.
Consumers in advanced oil-importing countries would face higher fuel costs, accounting for an additional 0.3 per cent of household spending. Inflation could rise by as much as 1 percentage point.
The size of the effects depends on just how much oil prices rise and for how long. This depends on various demand- and supply-side factors, not least of which in the short term is speculation. Crucially, global political events, and especially US policies, will be the major driving factor in what happens.
- Draw a supply and demand diagram to illustrate what has been happening to oil prices in the past few weeks and what is likely to happen in the coming weeks.
- What is the significance of the price elasticity of demand and supply in determining the size of oil price increase?
- What determines (a) the price elasticity of demand for oil; (b) the income elasticity of demand for oil; (c) the price elasticity of supply of oil?
- Why might oil prices overshoot the equilibrium price that reflects changed demand and supply conditions?
- Use demand and supply diagrams to illustrate (a) the destabilising effects that speculation could have on oil prices; (b) a stabilising effect.
- What industries might gain from higher oil prices and why?
- What would OPEC’s best policy be in the current circumstances? Explain.
In December 2015, countries from around the world met in Paris at the United Nations Intergovernmental Panel on Climate Change (IPCC). The key element of the resulting Paris Agreement was to keep ‘global temperature rise this century well below 2 degrees Celsius above pre-industrial levels and to pursue efforts to limit the temperature increase even further to 1.5 degrees Celsius.’ At the same time it was agreed that the IPCC would conduct an analysis of what would need to be done to limit global warming to 1.5°C. The IPPC has just published its report.
The report, based on more than 6000 scientific studies, has been compiled by more than 80 of the world’s top climate scientists. It states that, with no additional action to mitigate climate change beyond that committed in the Paris Agreement, global temperatures are likely to rise to the 1.5°C point somewhere between 2030 and 2040 and then continue rising above that, reaching 3°C by the end of the century.
According to the report, the effects we are already seeing will accelerate. Sea levels will rise as land ice caps and glaciers melt, threatening low lying coastal areas; droughts and floods will become more severe; hurricanes and cyclones will become stronger; the habits of many animals will become degraded and species will become extinct; more coral reefs will die and fish species disappear; more land will become uninhabitable; more displacement and migration will take place, leading to political tensions and worse.
The problem of greenhouse gas emissions and global warming is a classic case of the tragedy of the commons. This is where people overuse common resources, such as open grazing land, fishing grounds, or, in this case, the atmosphere as a dump for emissions. They do so because there is little, if any, direct short-term cost to themselves. Instead, the bulk of the cost is borne by others – especially in the future.
There is another related tragedy, which has been dubbed the ‘tragedy of incumbents’. This is a political problem where people in power want to retain that power and do so by appealing to short-term selfish interests. The Trump administration lauds the use of energy as helping to drive the US economy and make people better off. To paraphrase Donald Trump ‘Climate change may be happening, but, hey, let’s not beat ourselves up about it and wear hair shirts. What we do will have little or no effect compared with what’s happening in China and India. The USA is much better off with a strong automobile, oil and power sector.’
What’s to be done?
According to the IPCC report, if warming is not to exceed 1.5℃, greenhouse gas emissions must be reduced by 45% by 2030 and by 100% by around 2050. But is this achievable?
The commitments made in the Paris Agreement will not be nearly enough to achieve these reductions. There needs to be a massive movement away from fossil fuels, with between 70% and 85% of global electricity production being from renewables by 2050. There needs to be huge investment in green technology for power generation, transport and industrial production.
In addition, the report recommends investing in atmospheric carbon extraction technologies. Other policies to reduce carbon include massive reforestation.
Both these types of policies involve governments taking action, whether through increased carbon taxes on either producers or consumer or both, or through increased subsidies for renewables and other alternatives, or through the use of cap and trade with emissions allocations (either given by government or sold at auction) and carbon trading, or through the use of regulation to prohibit or limit behaviour that leads to emissions. The issue, of course, is whether governments have the will to do anything. Some governments do, but with the election of populist leaders, such as President Trump in the USA, and probably Jair Bolsonaro in Brazil, and with sceptical governments in other countries, such as Australia, this puts even more onus on other governments.
Another avenue is a change in people’s attitudes, which may be influenced by education, governments, pressure groups, news media, etc. For example, if people could be persuaded to eat less meat, drive less (for example, by taking public transport, walking, cycling, car sharing or living nearer to their work), go on fewer holidays, heat their houses less, move to smaller homes, install better insulation, etc., these would all reduce greenhouse gas emissions.
Finally, there is the hope that the market may provide part of the solution. The cost of generating electricity from renewables is coming down and is becoming increasingly competitive with electricity generated from fossil fuels. Electric cars are coming down in price as battery technology develops; also, battery capacity is increasing and recharging is becoming quicker, helping encourage the switch from petrol and diesel cars to electric and hybrid cars. At the same time, various industrial processes are becoming more fuel efficient. But these developments, although helpful, will not be enough to achieve the 1.5°C target on their own.
Videos and audio
- We must reduce greenhouse gas emissions to net zero or face more floods
The Guardian, Nicholas Stern (8/10/18)
- Rapid, unprecedented change needed to halt global warming – U.N.
Reuters, Nina Chestney and Jane Chung (8/10/18)
- Final call to save the world from ‘climate catastrophe’
BBC News, Matt McGrath (8/10/18)
- New UN report outlines ‘urgent, transformational’ change needed to hold global warming to 1.5°C
The Conversation, Mark Howden and Rebecca Colvin (8/10/18)
- Earth’s temperature to rise 1.5C as early as 2030 amid dire warnings from UN climate panel
The Telegraph (8/10/18)
- UN Climate Change Report: Everything You Need To Know
Huffington Post, Isabel Togoh (8/10/18)
- Thirty years of the IPCC
Physics World (8/10/18)
- 13 things you should know about 1.5
Unearthed, Zach Boren (8/10/18)
- Climate change impacts worse than expected, global report warns
National Geographic, Stephen Leahy (7/10/18)
- World to miss Paris climate targets by wide margin, says UN panel
Financial Times, Leslie Hook (8/10/18)
- We have 12 years to limit climate change catastrophe, warns UN
The Guardian, Jonathan Watts (8/10/18)
- Limiting warming to 1.5C is possible – if there is political will
The Guardian, Christiana Figueres (8/10/18)
- The Trump administration has entered Stage 5 climate denial
The Guardian, Dana Nuccitelli (8/10/18)
- ‘Unprecedented changes’ needed to stop global warming as UN report reveals islands starting to vanish and coral reefs dying
Independent, Josh Gabbatiss (8/10/18)
- Explain the extent to which the problem of global warming is an example of the tragedy of the commons. What other examples are there of the tragedy?
- Explain the meaning of the tragedy of the incumbents and its impact on climate change? Does the length of the electoral cycle exacerbate the problem?
- With the costs of low or zero carbon technology for energy and transport coming down, is there as case for doing nothing in response to the problem of global warming?
- Examine the case for and against using taxes and subsidies to tackle global warming.
- Examine the case for and against using regulation to tackle global warming.
- Examine the case for and against using cap-and-trade systems to tackle global warming.
- Is there a prisoners’ dilemma problem in getting governments to adopt policies to tackle climate change?
- What would be the motivation for individuals to ‘do their bit’ to tackle climate change? Other than altering prices or using regulation, how might the government or other agencies set about persuading people to ‘be more green’?
- If you were doing a cost–benefit analysis of some project that will have beneficial environmental impacts in the future, how would you set about adjusting the values of these benefits for the fact that they occur in the future and not now?
An agreement in principle was reached on September 30 between the USA, Canada and Mexico over a new trade deal to replace the North American Free Trade Agreement (NAFTA). President Trump had described NAFTA as ‘the worst trade deal maybe ever signed anywhere, but certainly ever signed in this country.’ The new deal, named the United States-Mexico-Canada Agreement, or USMCA, is the result of 14 months of negotiations, which have often been fractious. A provisional bilateral agreement was made between the USA and Mexico in August. At the same time, President Trump threatened a trade war with Canada if it did not reach a trade agreement with the USA (and Mexico). The new USMCA must be ratified by lawmakers in all three countries before it can come into force. This could take a few months.
So is USMCA a radical departure from NAFTA? Does the USA stand to gain substantially, as President Trump claims? In fact, USMCA is little different from NAFTA. It could best be described as a relatively modest reworking of NAFTA. So what are the changes?
The first change affects the car industry. From 2020, 75% of the components of any vehicle crossing between the USA and Canada or Mexico must be made within one or more of the three countries to qualify for tariff-free treatment. The aim is to boost production within the region. But the main change here is merely an increase in the proportion from the current 62.5%.
A more significant change affecting the car industry concerns wages. Between 40% and 45% of a vehicle’s components must be made by workers earning at least US$16 per hour. This is some three times more than the average wage currently earned by Mexican car workers. Although it will benefit such workers, it will reduce Mexico’s competitive advantage and could hence lead to some diversion of production away from Mexico. Also, it could push up the price of cars.
The agreement has also strengthened various standards inadequately covered in NAFTA. According to The Conversation article:
The new agreement includes stronger protections for patents and trademarks in areas such as biotech, financial services and domain names – all of which have advanced considerably over the past quarter century. It also contains new provisions governing the expansion of digital trade and investment in innovative products and services.
Separately, negotiators agreed to update labor and environmental standards, which were not central to the 1994 accord and are now typical in modern trade agreements. Examples include enforcing a minimum wage for autoworkers, stricter environmental standards for Mexican trucks and lots of new rules on fishing to protect marine life.
Another area where the USMCA agreement has made changes concerns trade in dairy products. This particularly affects Canada, which has agreed to allow more US dairy products tariff-free into Canada (see the CNN article at the end of the list of articles below). New higher quotas will give US dairy farmers access to 3.6% of Canada’s dairy market. They will still pay tariffs on dairy exports to Canada that exceed the quotas, ranging from 200% to 300%.
The other significant change for consumers in Mexico and Canada is a rise in the value of duty-free imports they can bring in from the USA, including online transactions. As the first BBC article listed below states:
The new agreement raises duty-free shopping limits to $100 to enter Mexico and C$150 ($115) to enter Canada without facing import duties – well above the $50 previously allowed in Mexico and C$20 permitted by Canada. That’s good news for online shoppers in Mexico and Canada – as well as shipping firms and e-commerce companies, especially giants like Amazon.
Despite these changes, USMCA is very similar to NAFTA. It is still a preferential trade deal between the three countries, but certainly not a completely free trade deal – but nor was NAFTA.
And for the time being, US tariffs on Mexican and Canadian steel and aluminium imports remain in place. Perhaps, with the conclusion of the USMCA agreement, the Trump administration will now, as promised, consider lifting these tariffs.
- USMCA, the new trade deal between the US, Canada, and Mexico, explained
Vox, Jen Kirby (2/10/18)
- USMCA: What Donald Trump’s Nafta replacement trade deal means and how it will work
Independent, Mythili Sampathkumar (2/10/18)
- USMCA trade deal: Who gets what from ‘new Nafta’?
BBC News, Jessica Murphy & Natalie Sherman (1/10/18)
- Can Trump really cut the US trade deficit?
BBC News, Andrew Walker (2/10/18)
- How is ‘new NAFTA’ different? A trade expert explains
The Conversation, Amanda M. Countryman (2/10/18)
- Was NAFTA ‘worst trade deal ever’? Few agree
PolitiFact, Jon Greenberg (29/9/18)
- NAFTA out, USMCA in: What’s in the Canada, Mexico, US trade deal?
Aljazeera, Heather Gies (2/10/18)
- Mexico boosted by US-Canada agreement on revamped Nafta deal
Financial Times, Jude Webber (3/10/18)
- Nafta Is Dead. Long Live Nafta.
- Trump Clears Deck for China Trade War With New Nafta Deal
Bloomberg, Rich Miller, Andrew Mayeda and Jenny Leonard (2/10/18)
- Fact check: Is Trump right that the new trade deal is “biggest” ever?
CBS News (2/10/18)
- Commentary: What Trump’s new trade pact signals about China
Reuters, Andres Martinez (4/10/18)
- Canada opened its dairy market. But by how much?
CNN, Katie Lobosco (2/10/18)
- What have been the chief gains and losses for the USA from USMCA?
- What have been the chief gains and losses for Mexico from USMCA?
- What have been the chief gains and losses for Canada from USMCA?
- What are the economic gains from free trade?
- Why might a group of countries prefer a preferential trade deal with various restrictions on trade rather than a completely free trade deal between them?
- Distinguish between trade creation and trade diversion.
- In what areas, if any, might USMCA result in trade diversion?
- If the imposition of tariffs results in a net loss from a decline in trade, why might it be in the interests of a country such as the USA to impose tariffs?