Obesity is on the rise, especially in children. With all the attendant health problems, concern is growing and various policies have been proposed to try to tackle the problem. One such policy is a sugar tax. This could be either a universal tax on sugar in food products or a tax just on soft drinks, many of which are very high in sugar – typically about seven teaspoons in a can or individual bottle.
Currently the issue is being considered by the UK’s Parliamentary Health Select Committee. Jamie Oliver, the TV chef and restaurateur, argued strongly before the committee in favour of a sugar tax on fizzy drinks. He has already imposed a levy on soft drinks with added sugar in his restaurants. He maintained that it was not just the higher price from a sugar tax that would deter consumption of such drinks, but it would send out an important message that too much sugar is bad for you.
Two days later, Dr Alison Tedstone appeared before the committee. She is chief nutritionist at Public Health England. PHE has been carrying out research into obesity and ways of tackling it. It has reviewed two types of evidence: experimental data on the effects of imposing higher prices on products with added sugar; and the effects of policies pursued in other countries. She stated to the committee that ‘universally all the evidence shows that the tax does decrease consumption’ and that ‘the higher the tax increase, the greater the effect’.
The government was not planning to publish the report at this stage, but under considerable pressure agreed to its publication.
The articles look at the prospects for a sugar tax, its likely effects if one were introduced and at the politics of the situation, which are likely to result in such a tax being rejected.
Videos and audio podcasts
Can you be trusted to eat less sugar? BBC News, Hugh Pym (22/10/15)
‘Introduce sugar tax’, health officials tell government Channel 4 News, Victoria Macdonald (22/10/15)
Jamie Oliver: ‘Bold’ sugar tax to beat childhood obesity BBC News, Hugh Pym (19/10/15)
Be bold on sugar tax, Jamie Oliver says BBC News, Nick Triggle (19/10/15)
Health scientists’ links with sugar industry queried BBC News, Dominic Hughes (12/2/15)
Mexico’s soda tax is starting to change some habits, say health advocates PRI’s The World on YouTube, Jill Replogle (2/12/14)
Articles
Jeremy Hunt told sugar tax would cut childhood obesity as review Government tried to suppress is published Independent, Charlie Cooper (20/10/15)
Sugar tax could help solve Britain’s obesity crisis, expert tells MPs The Guardian, Ben Quinn (21/10/15)
Jamie Oliver ‘expects kicking’ over sugar tax The Guardian, Jessica Elgot (22/10/15)
Sugar tax, fat fines and gold coins: new ways cities are tackling obesity The Guardian, Sarah Johnson (22/10/15)
Sugar tax and offers ban ‘would work’ BBC News (22/10/15)
Public Health England tells UK government: Sugar taxes do work FoodNavigator.com, Niamh Michail (21/10/15)
Childhood Obesity Partially Down To The Coco Pops Monkey, Sugar Tax Report Claims Huffington Post, Sarah Ann Harris (21/10/15)
Health officials back a sugar tax – and want the Coco Pops monkey banned The Telegraph, Laura Donnelly (20/10/15)
Jeremy Hunt embroiled in row over sugar tax report The Telegraph, Laura Donnelly (11/10/15)
Revealed: ‘Sugar tax report’ which was suppressed by Government The Telegraph, Laura Donnelly (22/10/15)
Public Health England obesity report: the key points The Guardian, James Meikle (22/10/15)
Cameron says no to sugar tax Mail Online, Jason Groves and Daniel Martin (21/10/15)
Sugar tax: Former health minister backs levy to prevent NHS ‘obesity crisis’ Independent, Charlie Cooper (21/10/15)
Journal articles and reports
Sugar Reduction: The evidence for action Public Health England, Dr Alison Tedstone, Victoria Targett, Dr Rachel Allen and staff at PHE (22/10/15)
Effects of a fizzy drink tax on obesity rates estimated NHS CHoices (1/11/13)
Overall and income specific effect on prevalence of overweight and obesity of 20% sugar sweetened drink tax in UK: econometric and comparative risk assessment modelling study British Medical Journal, Adam D M Briggs, Oliver T Mytton, Ariane Kehlbacher, Richard Tiffin, Mike Rayner and Peter Scarborough (2013;347:f6189)
Perspectives: Time for a sugary drinks tax in the UK? Journal of Public Health, Oliver Mytton (29/5/14)
Sugar reduction: Responding to the challenge Public Health England, Dr Alison Tedstone, Ms Sally Anderson and Dr Rachel Allen and staff at PHE (June 2014)
Questions
- What factors are driving the current high consumption of sugar?
- How is the concept of price elasticity of demand relevant to the effectiveness of imposing a sugar tax?
- What would determine the incidence of such a tax between food and drink manufacturers and consumers?
- Would such a tax be progressive, regressive or neutral? Explain.
- What other policies could be pursued to discourage the consumption of sugar? Discuss their likely effectiveness and compare them with a sugar tax.
- What externalities are involved in sugar consumption? How would you set about measuring them? Should a sugar tax be set at a rate that internalises the estimated externalities?
- Examine the objections to imposing a sugar tax.
The 2015 Rugby World Cup is now well under-way, with record crowds, surprising results and some heartbreak. But what about the economic impact of the Rugby World Cup? Big sporting events bring in spectators (estimated to be 466,000), athletes and crucially they all spend money. But what happens when the host country doesn’t make it through? Unfortunately for all England fans out there, this is a very relevant question.
Go to the area surrounding a stadium on the day of a rugby world cup match and you will barely find a pub with any room to move. Spending on drinks and food in local pubs and restaurants on match days is extremely high and many hotels are at breaking point with reservations. Predictions were that there would be an increase in direct expenditure by international visitors of £869 million. A report by Ernst and Young looked at the Economic Impact of the Rugby World Cup 2015 and it provides detailed analysis of how such sporting events can generate benefits to the host nation. The highlights are:
- £2.2 billion of output into the economy
- £982 million of value added to national GDP
- £85 million in infrastructure
- 41,000 jobs across the country
- £1 billion of added value
But, what happens when you take out the host team? Suddenly we see less interest in the daily matches and the feel good spirit takes a dive. Of course, the other home teams are still around and English fans are being encouraged to support them, but commentators suggested that this early exit will have a significant economic impact. Alex Edmans from the London Business School suggests that when a host nation exits a rugby sporting event at an early stage, the pessimism can wipe 0.15% of the stock market the following day. This translates to around £3 billion for the UK. He noted:
A defeat makes investors more negative about life in general. If England were to lose, they wouldn’t just be negative about the England rugby team but also about economic outcomes in general.
Advertising revenues may also be hit, with a significant impact on ITV, who are showing all matches. With England out, the value of advertising slots has fallen and the advertising impact on some of the key England sponsors, such as O2, may be significant. However, English ticket holders may use this as an opportunity to make money, selling on their tickets to fans of surviving teams! The following articles and report from Ernst and Young consider this latest major sporting event that has come to the UK.
Articles
The Economic Impact of Rugby World Cup 2015 Ernst and Young 2014
An England Rugby World Cup exit could have knock-on effect for our stock market The Guardian, Sean Farrell (1/10/15)
Brands cheer on Rugby World Cup in face of England’s exit Financial Times, Malcolm Moore (4/10/15)
Rugby World Cup 2015: Early England exit could cost country £3bn International Business Times, Alfred Joyner (6/10/15)
Rugby World Cup brands play down commercial losses of England’s ‘lacklustre’ exit The Drum, Seb Joseph (5/10/15)
Questions
- What is an Economic Impact Analysis?
- How would you estimate the size of the multiplier effect of a sporting event, such as the Rugby World Cup?
- Following England’s exit, what happened to the stock market?
- How will media companies be affected by the Rugby World Cup and by England’s exit?
- Why do emotions affect the stock market?
- Do you think England’s exit will lead to greater spending in other parts of the country, such as Scotland and Wales, as England fans defect?
Is slower economic growth a cost of cutting greenhouse gas emissions? Apparently not – at least according to two studies: one by DIW Econ, a German institute for economic research, and the other, earlier this year, by the International Energy Association (see reports below).
The IEA study found that, despite global GDP having grown by 6.4% in 2014, global emissions remained flat. The DIW Econ study found that from 2004 to 2014, OECD countries as a whole grew by 16% while cutting fossil fuel consumption by 6% and greenhouse gas emissions by 6.4%.
But what does this mean? If growth accelerated, what would happen to greenhouse gas emissions? Would they begin to rise again? Probably.
The point is that various developments, largely independent of economic growth have been reducing the greenhouse gas emissions/GDP ratio. These developments include: technological advances in energy generation; the switch to alternative fuels in many countries, thanks, in large part to lower renewable energy costs; increased energy efficiency by consumers; and a continuing move from energy-intensive manufacturing to less energy-intensive services.
So if governments forced more radical cuts in greenhouse gases, would this reduce the rate of economic growth or have no effect? For a given level of technological advancement, the initial effect would probably be a reduction in economic growth. But to the extent that this encouraged further investment in renewables and energy saving, it might even stimulate economic growth over the longer term, especially if it helped to bring lower energy prices.
A big problem in decoupling economic growth from fossil fuel usage is that developing countries, which are taking a growing share of world manufacturing, are more heavily dependent on coal than most developed countries. But even here there seems to be some hope. China, the biggest manufacturer in the developing world, is rapidly increasing its use of renewables. As the IEA press release states:
In China, 2014 saw greater generation of electricity from renewable sources, such as hydropower, solar and wind, and less burning of coal.
If the world is to tackle global warming by making significant cuts in greenhouse gases, there must be a way for developing countries to continue growing while making less use of fossil fuels.
Article
Cutting greenhouse gas emissions won’t slow global economic growth — report The Guardian, Bruce Watson (26/9/15)
Reports
Turning point: Decoupling Greenhouse Gas Emissions from Economic Growth DIW Econ, Lars Handrich, Claudia Kemfert, Anselm Mattes, Ferdinand Pavel, Thure Traber (September 2015)
World Energy Outlook Special Report 2015: Energy and Climate Change International Energy Agency (June 2015)
Questions
- What are the possible causal relationships between cutting greenhouse gas emissions and the rate of economic growth?
- What incentive mechanisms can governments or other agencies adopt to encourage reductions in greenhouse gas emissions without reducing economic growth?
- Can a cap and trade system, such as the European Emissions Trading Scheme help to achieve a given level of emissions reduction at minimum cost to economic growth? Explain.
- How might the developed world support developing countries in moving to a low carbon technology?
- What factors lie behind the falling costs of renewable energy? Are these the same factors that lie behind the falling cost of oil?
- What political problems might hinder the greater production of renewable energy?
- How might an economist set about determining a socially optimal amount of fossil fuel production? What conceptual and philosophical problems might there be in agreeing what is meant by a social optimum?
You’ll be familiar with these types of posts from me, which typically start with a comment like: ‘On my commute to work on …’. That’s one of the good things about a long drive – the interesting and informative discussions that you hear on the radio. This one is another interesting piece from BBC Radio 4, looking at a very topical issue, especially to those living in the South West and other rural areas in the UK.
We have recently seen pictures of farmers protesting about the price of milk and in places like Somerset, the protest took a rather odd method, where farmers from across the region entered supermarkets and simply bought all of the milk, before giving it away. The issue is that dairy farming is no longer profitable, as the price that dairy farmers receive for each pint of milk is now lower than the cost of providing it. Thus, for each pint they make a loss.
There are many reasons that have contributed to this situation, including pressures imposed by customers demanding cheaper prices; pressures from supermarkets using their monopsony power to 
force down the prices paid to farmers; and pressures from abroad. In the case of milk, we have a surplus and with a perishable product, i.e. one that cannot be stored, unlike wheat, this has contributed to falling prices. Data suggest that we are seeing approximately one farmer per day being forced to leave the indsutry.
This programme explores the current dairy farming crisis and draws some similarities with the wheat crisis that the UK experienced in the 1930s. The programme below is 30 minutes and provides some interesting insights on two important commodities and the economics behind the markets.
Today’s crisis in dairy farming and the wheat crisis of the 1930s BBC Radio 4; The Long View, Jonathan Freedland (29/9/15)
Questions
- Using demand and supply analysis, explain the situation in the milk market.
- Now consider the wheat industry and provide a similar analysis of how prices are set and what caused the problems seen in the 1930s.
- Although these two commodities have similarities they are also very different. Why can two different commodities experience such similar problems at such different times?
- What are the key demand and supply-side factors affecting the current low price of milk?
- Consider the market for (a) milk and (b) wheat. What are (if any) the market failures within each area?
- Agriculture is an area where we do see significant government intervention. Should the UK government be doing more to help the UK’s dairy farmers? If so, what should they do and would this intervention create further problems, e.g. unintended consequences?
The second largest economy in the world, with a record expansion to its current economic status: China. With a phenomenal population, massive migration to the cities and incredible infrastructure development, China has fast become a key economic player, with environmental and pollution problems to match.
The price of China’s economic development may be too high for some people. Increases in incomes, growth and employment may be good news, but is the cost too high? Do economic growth and progress mean poor health and if so, is this a price worth paying
Another big topic within China is the impact on inequality. With growth accelerating in urban areas, population movement from the rural to the urban has been a common feature across China, but this has also created greater inequality. This population movement has separated families and played a role in creating barriers of access to health and education.
The following article from the BBC considers a range of indicators within China and you may also want to review some earlier blog postings on the Sloman News Site which analyse the Chinese economy.
Cement and pig consumption reveal China’s huge changes BBC News (21/9/15)
Questions
- What are the key drivers of China’s development?
- What are the costs and benefits of rural-urban migration?
- To what extent do you think there may be a trade-off between quality and quantity when it comes to infrastructure projects? Or is Chinese labour simply more efficient relative to countries such as the UK?
- How should we measure economic development? If access to education and health care is limited in the more rural areas, but widely available in the larger cities, does this suggest a country that is developing?
- What are the main externalities that China must tackle? Are they domestic issues or global ones? What about the solutions?
- If a key driver of Chinese growth and development is government investment in infrastructure projects, is this true and sustainable growth or do you think it might slowly disappear if the government doesn’t continue to invest?
- Do you think the relative success of China can be replicated in other emerging nations and in particular in nations within Africa?
