The Office for National Statistics (ONS) reported that the quantity of retail sales in the UK was 3.9% higher in August than it had been in July. However strong price competition meant that the value of these sales increased by only 0.4%. What were the key factors driving the big increase in the quantity of sales? Was it simply the response of consumers to falling prices?
The data indicated that there was strong demand for goods associated with the housing market such as carpets, fridges and cookers. Spending on furniture increased very rapidly with sales rising by 24% over a 12 month period. Flat packed furniture proved to be particularly popular with consumers.
There was also strong demand for electrical goods and more specifically vacuum cleaners. The ONS estimated that a boom in the sale of vacuum cleaners in August was responsible for 25% of the increase in retail sales.
Why did the sales of vacuum cleaners increase so rapidly in August? Did UK households suddenly decide to keep their houses cleaner? The sales data shows that certain types of vacuum cleaners sold in much larger numbers than others.
For example, Tesco reported a 44% increase in the sales of 2,000 watt vacuum cleaners in the last two weeks in August while the Co-op reported an increase of 38%. Referring to the last weekend in August, the head of small domestic appliances at the on-line retailer ao.com stated that
We saw a huge surge in sales of corded vacuums over 1,600 watts over the weekend, with sales quadrupling.
There were also reports that a significant number of customers were buying more than one vacuum cleaner with these larger motors.
The key reason for the sudden surge in demand was the implementation of new regulations by the European Union as part of its energy efficiency directive. The ultimate objective of this directive is to reduce climate change. The specific policy that appears to have had such a big impact on consumers in the UK was the ban imposed on firms in the EU from making or importing vacuum cleaners that have motors above 1600 watts. This ban came into effect on the 1st September 2014.
A spokesperson for the consumer group Which? stated in August that
If you’re in the market for a powerful vacuum, you should act quickly, before all the models currently sell out. A Best Buy 2,200-watt vacuum costs around £27 a year to run in electricity – only around £8 more than the best scoring 1,600-watt we’ve tested.
The EU plans to reduce the maximum permitted wattage in vacuum cleaners to 900 watts in 2017. Restrictions have already been imposed on bigger electrical appliances such as televisions, washing machines and refrigerators. The EUs Ecodesign directive may also be extended to a range of smaller electrical appliances such as toasters and hair dressers in the future. It’ll be interesting to see if consumers respond in the same way to regulations imposed by the EU in the future.
Ten days left to vacuum up a powerful cleaner BBC (21/08/14)
Housing boom, food discounting and vacuum ban boost UK spending The Guardian, Larry Elliott, Phillip Inman, Lisa Bachelor (18/9/14)
UK retail sales boosted by vacuum cleaner sales BBC (18/9/14)
Retailers sell out of vacuum cleaners ahead of EU ban The Telegraph, Elliot Pinkham (30/8/14)
Power surge! Fourfold rise in sales of super vacuums: Some customers buying two or more models to beat new EU regulations Daily Mail, Andrew Levy (1/9/14)
Energy Efficiency Directive European Commission (accessed on 24/9/14)
Vacuum cleaner splurge pushes up UK retail sales The Guardian, Phillip Inman (18/9/14)
Questions
- Using a demand and supply diagram, illustrate what has happened in the market for high wattage vacuum cleaners in August. Pay particular attention in your answer to the role of expectations.
- What did your previous diagram predict would happen to the price of high wattage vacuum cleaners in August? Did this in fact happen?
- A fully informed rational consumer may purchase a higher wattage vacuum cleaner if they consider that the improvement in cleaning performance is greater than the extra cost of purchasing and using the cleaner. Can you provide an economic rationale for banning the sale of these machines in these circumstances?
- Using a demand and supply diagram illustrate the impact of banning the sale of a product in a competitive market.
Officials from Rugby Union’s Aviva Premiership recently announced that the salary cap used by the league would increase from £4.76 million to £5.1 million per team for the 2015-16 season. It is not the only professional sports league to use this type of regulation. The NFL currently has a salary cap of $133 million/team while in the NBA it is set at $63 million/team. What is the rationale for placing restrictions on the amount an organisation can pay its employees? How do these caps work in practice?
A salary cap is a regulation that limits the amount that an organisation can pay its employees. Sanctions are usually imposed if the ceiling is broken.
It is hard to imagine this type of policy being introduced in most industries. For example there may have been a number of calls for much greater regulation of the big six firms in the energy market with the Labour party suggesting that prices should be frozen for 20 months. However in amongst all the calls for more intervention, nobody has suggested that limits should be placed on the wages that these firms pay their staff.
One example where the authorities are thinking of intervening on pay is the proposal by the European Union to introduce a cap on the size of bonuses that can be paid by firms in the banking industry. However this is more of a constraint on the method of remuneration rather than an absolute limit on the level of pay. If the policy was introduced there would be nothing preventing firms from increasing basic salaries in order to make up for any shortfall caused by the reduction in bonuses.
There is one sector of the economy where salary caps are widely used – professional team sports. There are a number of different ways they have been implemented. For example the Football Association once placed a limit on the amount that a club could pay an individual player. This was originally set at £4/week in 1901 and increased to £20/week before it was finally abolished in 1961.
In recent times it has been far more common for salary caps in professional sports leagues to place limits on the size of a team’s total wage bill rather than the amount that can be paid to an individual player. This is the case in the Aviva Premiership, the NFL and the NBA. Perhaps it would be more accurate to refer to these policies as a cap on payrolls rather than on salaries.
The Aviva Premiership gives the following 4 reasons for having the payroll cap that it first introduced in 1999:
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To ensure the financial viability of the clubs; |
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To ensure a competitive Aviva Premiership Rugby competition; |
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To control inflationary pressures on clubs’ costs; |
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To provide a level playing field for the clubs. |
It is claimed that the policy has helped the league to achieve these objectives as (a) more clubs are now breaking even and (b) compared with other rugby competitions it has the greatest number of games that finish with less than one score between the teams.
There are a number of different ways that a payroll cap can be implemented. With an absolute payroll scheme all the teams in the league, no matter what their size, face the same constraint. This is the policy adopted by the NFL, NBA and the Aviva Premiership. An alternative is to implement a percentage payroll cap. Examples of these can be found in League 1 and League 2 of the English Football League. League 1 teams can spend up to 60% of their turnover on wages while League 2 teams can spend up to 55% of their turnover on wages. Obviously this means that well supported clubs with a larger turnover can spend more on players’ wages than less well supported clubs with a smaller turnover.
Another way that payroll caps differ is whether they are ‘hard’ caps or ‘soft’ caps. With a ‘hard’ cap there are no exceptions to the scheme. All the teams’ payrolls must remain within the same limit set by the league officials. With a ‘soft’ cap the authorities identify some exceptions that enable clubs to exceed the limit. The payroll cap used in rugby union is an example of a soft cap and works in the following way.
There are a number of elements to the scheme:
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The senior salary cap; |
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Excluded players; |
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The academy credits. |
The senior salary cap is the major part of the regulation and the Aviva Premiership announced that this would increase from £4.76 million per team in the current season to £5.1 million per team for 2015-16. The Academy credits enable teams to exceed this £5.1 million limit if they train and develop younger players. The teams have to prove that they have young players that meet the following criteria:
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They are under the age of 24 before the season started; |
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They joined the youth academy before their eighteenth birthday; |
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They earn more than £30,000 per year. |
For a player who meets these conditions it is only their salary in excess of £30,000/year that is considered. For example if a young player was paid £50,000/year then only £20,000 of his wages would count towards the team’s payroll cap. The first £30,000 would not count. The Aviva Premiership recently announced that a home grown player credit would replace the academy credits. Under the new scheme the upper age limit will be removed and clubs can claim up to £400,000 in allowances. This means that teams could spend up to £5.5 million a year on wages if they train and develop younger players.
However other exceptions means that teams can exceed even this figure. The payroll cap arrangements allow teams to identify one player whose wages are not included when the payroll cap is calculated. In order to be nominated the exempted player has to meet certain criteria. In the 2015-16 season teams will be allowed to have two excluded players.
Sir Iain McGeechan has suggested that these changes will increase the effective salary cap to £7 million/year with some star players earning £1 million/season. However this would still be below the level of the basic salary cap in the French Rugby Union Super 14 League which is €10 million per season (approximately £8.5 million)
Premiership salary cap will leave small clubs playing catch-up The Telegraph (20/9/14)
Bath line up move for Australian Will Genia as new salary cap regulations come into effectThe Telegraph (15/9/14)
The salary cap in Rugby Union Law in Sport (15/4/14)
Barwell blasts salary cap ‘cheats’ ESPN (1/3/13)
Salary Cap changes confirmed Premiership Rugby (17/9/14)
What is meant by a salary cap in Sport and would this ever be used in English football? In Brief (accessed on 22/9/14)
Questions
- Draw a diagram to illustrate the impact of a salary cap on a perfectly competitive market and explain your answer.
- Which teams in the Aviva Premiership would be in favour of the increase in the salary cap and which teams would be opposed? Explain your answer.
- Do you think that an absolute or percentage salary cap would be more effective at maintaining competitive balance in a league? Which teams would be more in favour of an absolute salary cap?
- Why do think some leagues have introduced a ‘soft’ rather than a ‘hard’ salary caps?
- To what extent do you think that salary/payroll caps are consistent with European single market principles about the free movement of people?
- Officials from the Aviva Premiership provide the clubs with a long list of payments which must be counted as part of a player’s salary. These include holiday costs, school fees, payment for off-field activities on behalf of the club, payments in kind and signing on fees. Why do you think that the authorities provide such a large list?
- Find out the criteria that must be met in order for a player to be exempted from the team’s payroll calculations. Provide some reasons why you think these criteria were used.
Many of you reading the articles on this website will be just about to start, or will have just started, studying economics at university. For some of you this will involve building on the knowledge you obtained prior to university, whereas for others it will be the first time you have ever studied the subject before. Will studying economics change the way you behave? Should it come with a health warning?
Can studying economics change the way you think and behave? The subject is often sold to prospective students on the grounds that it can. For example it is stated on the Economics Network’s Why Study Economics? website that
The economic way of thinking can help us make better choices
However, is it possible that studying economics could change people’s behaviour in a way that would be to the detriment of society? Some observers have argued that it can. They have suggested that students might be influenced by some of the assumptions that are made in traditional economic theory.
As social scientists, economists are always trying to analyse human behaviour. However, people vary in many different ways and have very diverse preferences. If we want to build a theory that predicts how people will behave and respond in different situations, then some type of simplifying assumptions are inevitable.
Traditionally one of the key simplifying assumptions that economists have used in their theories of human behaviour is that people make decisions in their own self-interest. There is some debate about exactly what self-interest means. For example it could be argued that giving £10 to charity is acting in your own self-interest if it gives you more pleasure than spending that £10 on yourself. However, in many of the economic theories that you first study in economics a narrow meaning of self-interest tends to be used. This is clearly illustrated by the following quote from Milgrom and Roberts. Referring to economic theory they state that:
It is often assumed that people behave as if they were entirely motivated by narrow, selfish concerns

It is important to make it clear that economists are not assuming that people behave in a selfish manner all of the time. Instead, they are assuming that the people in their theories are acting in a selfish manner. The value of making this assumption is whether the predictions about human behaviour that follow from using it are supported by evidence from the real world.
Some researchers have argued that when people study economic theory built on this assumption it makes them more likely to behave in a selfish way. The evidence for this comes from a range of research papers. Here are some findings:
Economics students were more likely than those studying other subjects to recommend the most expensive plumber to a student society if that plumber offered the student a side payment.
Students took part in an experiment in a computer room where they could either keep the money they had been given or donate it to a public good. On average the economics students kept more of the money.
Economics professors gave less money to charity than professors of other subjects such as psychology and sociology.
Some studies also found that selfish people were more likely to choose economics as a subject to study and became more selfish after they had studied it for some time.
If you are about to begin your study of economics then perhaps you should take care that your behaviour outside the classroom is not being unduly influenced by some of the assumptions you are learning about inside the classroom. On a more practical note perhaps you should avoid sharing a restaurant bill or buying rounds of drinks when in the company of other economists!!!
However on a brighter note, the evidence in these papers can be interpreted in a number of different ways. There are even some studies that found economics students were less selfish than those on other courses.
Re-Post: Does Studying Economics Make You Selfish? The Splintered Mind (21/11/12)
Does studying economics make you more selfish? BBC (22/10/13)
Does Studying Economics Breed Greed? Huffington Post (22/10/13)
The Dismal Education The New York Times (16/12/11)
Does Economics Make You a Bad Person? Conversable Economist (31/3/14)
Economists aren’t all bad FT Magazine (11/4/14)
Questions
- What is an economic model? Why is it necessary to make simplifying assumptions?
- How are economic models judged? How important is it for the assumptions to accurately describe the real world?
- Try to find some jokes that have been made about the use of assumptions in economic theory.
- Can you think of any alternative explanations for the results found in the research papers referred to in the case?
- Try to find a research paper that finds evidence that economics students are less selfish than other students.
- What is a public good? Explain why someone with selfish preferences would not contribute to the public good.
Merlin Entertainments PLC is one of the largest operator of visitor attractions in the world and owns over a third of the most popular theme parks in Europe. It runs the four most visited parks in England – Alton Towers, Legoland Windsor, Thorpe Park and Chessington World of Adventures as well as the most popular theme park in Italy – Gardaland. Alton Towers alone had 2.5 million visitors in 2013. Anybody thinking of going to one of these attractions is faced with a wide range of different entry fees .
Theme parks and tourist attractions have market power so their owners have to make some interesting pricing decisions. They have to tackle the same dilemma that confronts any seller that faces a downward sloping demand curve for its goods/services.
One option for the firm would be to increase the entry fee. This would produce higher profits per visitor as some of the surplus from the transaction previously enjoyed by the consumer will be extracted by the seller and converted into producer surplus. Unfortunately for the business the higher price, all other things equal, will also result in fewer visitors. Some people will be deterred from visiting because of the higher price and the seller will lose out on potential revenue.
An alternative strategy would be for the theme park to reduce its entry fee. All other things equal, this will increase the number of visitors. However, it would also mean that the profit per customer would fall. The frustrating issue for the seller is that some of its customers, who would still have visited the attraction at the higher price, are now able to get a better deal.
This dilemma exists if the seller has to charge all of its different customers the same entry fee. If it could charge a higher entry fee to those customers who would be willing to pay more and a lower entry fee to those who would be willing to pay less then it could make more money. Extra revenue could be obtained from those additional sales that take place at the lower price while more consumer surplus could be extracted from those still paying the higher price.
Is it possible for a firm to charge different prices to different customers for the same or a similar good or service? Table 1 below shows the entry fees for Warwick Castle, another tourist attraction owned by Merlin Entertainments PLC.

It can immediately be seen from this table that some groups of customers pay a different entry fee from others. For example adults have to pay £24 to enter on the day while people aged 60 and over pay a lower price £16.80. The entry fee for children aged between 4 and 11 is £21.00 while those aged 3 and under go for free. Students aged 16-18 can gain entry for a price of £13.50 if they can provide valid ID and purchase the tickets from the visitbritainshop website.
In this example, the company has allocated people into different categories by age (i.e. senior, adult, student, older children and younger children) and has set the entry fee that customers in each group have to pay.

The table also shows that if customers purchase on- line then they can get the tickets more cheaply. The entry fee for each category is 25% lower if the ticket is booked seven days in advance i.e. the prices shown in the last column in the table. If the booking is made between 2-6 days in advance then the discount is only 10% i.e. an adult ticket would cost £21.60. The on-line discounts are open to everyone. People are given the choice to either book on-line in advance or pay on the day. This is different from a situation where you are placed into a category by the firm. For example the customer cannot choose whether they are over 60!
If people are prepared to spend more time searching on the internet then other cheaper prices can also be obtained. Once again these offers are open to anyone willing to spend the time and effort in order to find them.
All the ticket prices above give people access to exactly the same attractions on the day. They do not give the visitor access to two of the attractions at the castle – the Dragon Tower and Castle Dungeon. Entry to the Dragon Tower would cost an adult on the day an extra £1.80 while entry to the Castle Dungeon would cost an extra £5.40.
Warwick Castle Ticket Prices Warwick Castle (accessed on 04/09/14)
Alton Towers Alton Towers (accessed on 08/09/14)
Warwick Castle Tickets visitbritainshop (accessed on 02/09/14)
Global Attractions Attendance Report teaconnect (accessed on 05/09/14)
Merlin Entertainments Merlin Entertainments (accessed on 08/09/14)
Questions
- What pricing decisions do firms have to make if they operate in a perfectly competitive market?
- Explain why an individual tourist attraction will have a downward sloping demand curve
- Paying an entry fee and an extra payment per attraction is known as what type of pricing? What advantages does this type of price strategy have for the seller?
- How would you calculate the profit per customer? What factors other than the entrance fee would determine the profit made per customer in a theme park or tourist attractions?
- Paying a different price depending on which category you have been assigned to by the seller is known as what type of pricing strategy? Can this type of pricing strategy ever be in the interests of society?
- In the example used in the case, customers are assigned to different categories by age. Can you think of any other ways that firms could categorise their customers?
- Given the category customers have been assigned to they can pay different prices depending on whether they buy the tickets on line. What is the price strategy called when customers can choose from a variety of pricing options for the same or similar product? Can you think of any different methods that could be used by the seller to carry out this type of pricing strategy?
The draw for the lucrative group stages of the Champions League was made on Thursday 28th August. The 32 remaining clubs in the competition were allocated into eight groups of four teams. 74% percent of the respondents to a BBC survey thought that Manchester City had the toughest draw, while only 3.7% thought that Chelsea had the hardest draw. How did the Premier League champions end up in a much tougher group than the teams that finished in 3rd and 4th place? Was it purely by chance?
The unpredictability of a sporting contest depends not only on differences in the talent/motivation of the participants involved, but also on how the contest is designed and structured. The Champions League is an interesting case. The title of the competition would suggest that the participating clubs are all league champions from the 54 football associations spread across Europe. However, out of the 32 clubs which made it to the group stage, only 18 were actually the champions of their own domestic league.
22 teams automatically qualify for the group stages, while the other ten qualify via a knock-out stage of the competition. Of the 22 teams which gain automatic qualification only thirteen are league champions. The other nine places are allocated to teams which finished either 2nd or 3rd in their domestic leagues.
The inclusion of teams which did not win their domestic league occurs because UEFA allocates places in the Champions League by ranking the sporting performance of the 54 different football associations in Europe. This measure of performance, known as a Country’s Coefficient, is based on the results of the teams from each football association in both the Champions League and Europa League over the previous five years. If UEFA ranks a football association in one of the top three positions, then the teams that finish 1st , 2nd and 3rd in those leagues automatically qualify for the group stage of the Champions League. England is currently ranked in 2nd place behind Spain, which explains why Chelsea, which finished 3rd in the Premier League, obtained automatic qualification. The teams that finished 4th in these three top ranked leagues also gain entry to the final knock-out round of the competition. This is how Arsenal gained qualification for the group stage by narrowly defeating Besiktas from the Turkish League.
Teams from the lower ranked football associations have to win through more knock-out games in order to reach the lucrative group stage. For example the league champions from the bottom six countries (Faroe Islands, Wales, Armenia, Andorra, San Marino and Gibraltar) would have to win through four two-leg knock-out games. The league champions from Scotland would have to win through three as their football association is ranked in 24th place.
A draw takes place in order to allocate the remaining 32 teams to the leagues in the group stages. It is interesting how this allocation occurs because it is not a completely random process. UEFA ranks individual teams as well as countries. Real Madrid is currently ranked in 1st place while Port Talbot Town from the Welsh league is in 449th place. The top eight ranked teams still left in the competition are placed in pot 1, the 9th to 16th ranked clubs are placed in pot 2 and so on. One team from each pot is then drawn out at random and placed in a group. Therefore each group contains one club from pot 1, 1 club from pot 2, 1 club from pot 3 and 1 from pot 4.
The problem for Manchester City is that the seeding of each team is predominately determined by its performance in the Champions and Europa league over the previous five years. Once a team has made it to the group stages, its performance in its own domestic league has no impact on how it is seeded. This means that although Arsenal only finished 4th in the Premier League, it is placed in pot 1 for the draw because of its results in the Champions League over the previous five years. It therefore avoids the other top seeded clubs such as Real Madrid, Barcelona and Bayern Munich. Chelsea is also in pot 1, so was also more likely to get a favourable draw. Manchester City was seeded in pot 2 because it had only been in the Champions League for the last three years, so had not accumulated as many points as the teams who have been in the competition for longer.
Unfortunately for Manchester City, it was drawn in the same group as one of the strongest pot 1 teams – Bayern Munich. It was also unlucky to end up with one of the strongest teams in pot 4. Roma was runners up in the Italian league so was given an automatic place in the group stage. However it received a relatively low seeding as it is the first time it has been in the Champions league since 2010–11.
How much does the seeding matter? Since 1999–2000, when the group stage was expanded to 32 clubs, 86% of the top seeded teams have successfully qualified from the group stage into the last 16. Eleven of the last 16 winners were also from pot 1.
Articles
UEFA Rankings – Club coefficients 2014/15 UEFA (29/8/14)
UEFA Rankings – Country coefficients 2014/15 UEFA (29/8/14)
UEFA Rankings – Coefficients Overview UEFA (29/8/14)
Explained: The UEFA Champions League draw The Indian Empress (28/8/14)
Questions
- Uefa awards ranking points to teams based on their sporting performance. For example teams receive two ranking points for a victory against any team. This is different from the system used to rank national teams where the quality of the team defeated also influences the number of points awarded. What impact would it have if more ranking points were awarded in the Champions League for victories against higher ranked clubs?
- The Uefa system for ranking countries and teams is based on performance in European competitions over the previous 5 years. The performance in each year is weighted equally. What impact might it have if victories from the previous year were more heavily weighted than those from 4 or 5 years ago?
- The draw for the group stages of the Champions League could be made using a completely random process without any seeding. What impact might this have on the amount of money that firms in England, Spain and Italy would be willing to pay to secure the media rights?
- Can you think of any other elements of the design of the tournament that might have an impact on the predictability of the outcome?