A modern day hindrance is spam email clogging up your inbox with, for example, offers for cheap drugs or notifications that you will inherit enough money to retire to the Bahamas. A recent paper by Justin Rao and David Reiley in the Journal of Economic Perspectives investigates the economics of spam mail (which, as I discovered, from the article gets it’s name from a Monty Python sketch). Remarkably, they quote figures suggesting that 88% of worldwide email traffic is spam. Their paper then provides a number of interesting insights into the business of spam mail.
First, given that most recipients simply delete it, why is spam mail sent out? For the benefits of sending it to exceed the costs, it must be that somebody is reading and responding to it and the costs must also be reasonably low. Rao and Reiley are able to quantify these costs and benefits. They estimate that if 8.3 million spam emails are sent, only 1.8% (approximately 150,000) will reach the intended recipients’ inboxes, with the remainder being blocked or filtered out. Of these 150,000, just 0.25% (375) are clicked on. Furthermore, these 375 clicks generate just a single sale of the advertised product which is typically sold for around $50. Assuming that free entry of spammers leads to them earning zero economic profit, this means that it costs the spammers around $50 to send the 8.3 million emails.
Second, spam mail clearly imposes a considerable negative externality on society. This includes wasted time for consumers and the costs of the extra server hardware capacity required. Rao and Reiley are also able to quantify the size of the negative externality created. First, they estimate that:
“American firms and consumers experience costs of almost $20 billion annually due to spam.”
This can then be compared to the benefits senders of spam get:
“….. we estimate that spammers and spam-advertised merchants collect gross worldwide revenues on the order of $200 million per year. Thus, the ‘externality ratio’ of external costs to internal benefits for spam is around 100:1.”
They then compare this to estimates for other negative externalities such as car pollution and conclude that the size of the negative externality from spam is significantly greater.
Finally, they also point out that it is predominantly the larger email service providers i.e. Yahoo! Mail, Microsoft Hotmail, and Google Gmail who have both the incentives and resources to fund interventions to eradicate spam. For example, in 2009 Microsoft and Pfizer (the manufacturer of Viagra which faces competition from counterfeit versions often advertised by spam) financially supported the successful operation to shut down the largest spam distributor. Clearly, such operations have large positive spillovers for email users. However, as they also discuss, anti-spam technology also increases the fixed costs of competing as an email provider and they suggest that this has contributed to the increased concentration in the market.
The unpalatable business of spam The undercover economist, Tim Harford (19/07/12)
Huge spam botnet Grum is taken out by security researchers BBC News (19/07/12)
Spammers make a combined $200 million a year while costing society $20 billion BGR, Dan Graziano (28/08/12)
Questions
- Explain why free entry results in zero economic profit.
- Explain how an increase in fixed costs can lead to an increase in concentration.
- Why does Microsoft have large incentives to eradicate spam mail?
- In what ways does the externality created by spam mail differ from other forms of advertising?
- How might government policies alter the costs and benefits of sending spam mail?
Everyone who drives in the UK is required to take out car insurance. Whilst fully comprehensive is voluntary, it is compulsory to have at least third party insurance, which covers damage to other vehicles. Insurance premiums are calculated based on a number of different variables, such that two people driving the same car may face wildly different costs.
Although there are many insurance companies to choose from, this industry has been referred to the Competition Commission by the OFT as it was ‘worried the structure of the market was making costs and premiums unnecessarily high.’
According to Moneysupermarket, the average cost of car insurance reached a high of £554 in April 2011, but have fallen by £76 since. With tight incomes across the UK for many families, high car insurance premiums is another strain and thus this investigation will come at an apt time, even though the findings of the CC may not be reported for 2 years. The Association of British Insurers (ABI) said that the investigation would:
‘bring much-needed reforms to the market that will, in turn, result in lower car insurance premiums for consumers’.
The problem seems to be that when an individual is involved in an accident and sends their car off for repairs, their insurance company doesn’t have much control over the bills they end up paying, which can be inflated by £155 each time. This therefore leads into higher costs for the insurance company, which are then passed on the driver in the form of an increased premium. Other concerns were that courtesy cars were being offered, at an estimated cost of £560 per vehicle (according to the OFT) and that drivers were using these cars for longer than necessary, once again causing costs to rise.
Altogether, it has been suggested that the actions of the insurance company of ‘not-at-fault’ drivers, car hire companies, repairers and brokers push up the prices for ‘at-fault’ drivers’ insurance companies. Given that any insurance company is just as likely to be the ‘at-fault’ insurance company, they all face rising costs.
Back in May, the OFT had already decided that the car insurance market required a more detailed investigation, because of the ‘dysfunctionality’ of the market. Following a public consultation, the industry will now face an investigation by the CC. One additional area that may be of interest to the CC came to light last year, where it was found that insurance companies were claiming against themselves in a bid to drive up premiums. Although the investigation will take some time, it is still a timely review for many drivers, who have seen the cost of motoring reach record highs. The following articles consider the market for car insurance.
Articles
Car insurance market referred to Competition Commission BBC News (28/9/12)
No quick fix for motor insurance abuses, says watchdog Independent, Simon Read (29/9/12)
Car insurance industry faces probe The Press Association (28/9/12)
Competition Commission referral will take time to lower motor insurance premiums The Telegraph, Rosie Murray-West (28/9/12)
UK car insurance probe over-shadows Direct Line IPO Reuters, Matt Scuffham and Myles Neligan (28/9/12)
Car insurance scrutinized over high premiums Sky News (28/9/12)
Rip-off motor insurance firms face competition watchdogs probe over £225million racket Mail Online, Ray Massey (28/9/12)
Questions
- Why are car insurance firms willing to take on other people’s risks?
- What conditions must exist in a market for private companies to provide acr insurance (or insurance of any kind)?
- Why is third-party insurance compulsory, whereas people can opt for fully comprehensive insurance?
- What powers does (a) the OFT and (b) the Competition Commission have? Is it likely that this report will have any impact on car insurance premiums?
- What allegations have been made that help to explain why insurance premiums I this industry have increased?
- Is there an argument for allowing the industry itself to provide its own regulation?
- In which market structure would you place the car insurance industry?
After weak Christmas trading, Tesco issued a profit warning – its first in 20 years. Following this, their shares fell in value by some £5bn, but this was met with an announcement of the creation of 20,000 jobs in the coming years, as part of a project to train staff, improve existing stores and open new ones. Yet, Tesco has reported another quarter of falling sales.
Trading times have been challenging and the fact that the UK’s biggest supermarket is struggling is only further evidence to support this. In the 13 weeks to the 26th May 2012, Tesco reported a decline in like-for-like sales of 1.5%. Although much of the £1bn investment in Tesco is yet to be spent, the fact that sales have fallen for a full year must be of concern, not only to its Chief Executive, but also to analysts considering the economic future for the UK.
Consumer confidence remains low and together with tight budgets, shoppers are continuing to be very cautious of any unnecessary spending. Part of Tesco’s recent drive to drum up sales has been better customer service and a continuing promotion war with the other supermarkets. This particular sector is highly competitive and money-off coupons and other such promotions plays a huge part in the competitive process. Whilst low prices are obviously crucial, this is one sector where non-price competition can be just as important.
Although Tesco sales in the UK have been nothing to shout about – the Chief Executive said their sales performance was ‘steady’ – its total global sales did increase by 2.2%. The Chief Executive, Mr Clarke said:
‘Internationally, like-for-like sales growth proved resilient, despite slowing economic growth in China…Against the backdrop of continued uncertainty in the eurozone, it is pleasing to see that our businesses have largely sustained their performance.’
A boost for UK sales did come with the Jubilee weekend and with the Olympics just round the corner, Tesco will be hoping for a stronger end to the year than their beginning. The following articles consider Tesco’s sales and the relative performance of the rest of the sector.
Tesco’s quarterly sales hit by ‘challenging’ trading BBC News (11/6/12)
Tesco UK arm notches up one year of falling sales Guardian, Zoe Wood (11/6/12)
Tesco upbeat despite new sales dip Independent, Peter Cripps (11/6/12)
Tesco sales seen lower in first quarter Reuters, James Davey(11/6/12)
The Week Ahead: Tesco set to admit it is losing ground to rivals Independent, Toby Green (11/6/12)
Tesco’s performance in the UK forecast to slip again Telegraph, Harry Wallop (10/6/12)
Tesco: What the analysts say Retail Week, Alex Lawson (11/6/12)
Supermarkets issue trading updates The Press Association (9/6/12)
The Week Ahead: Supermarkets prepare to give City food for thought Scotsman, Martin Flanagan (11/6/12)
Asda’s sales growth accelerates Reuters, James Davey (17/5/12)
Asda sales increase helped by Tesco Telegraph, Harry Wallop (18/5/12)
Tesco v. Sainsbury’s in trading update battle Manchester Evening News (11/6/12)
Sainsbury’s out-trades Tesco on UK food sales Independent, James Thompson (10/6/12)
Questions
- Using some examples, explain what is meant by non-price competition.
- Why has Tesco been losing ground to its competitors?
- Given the products that Tesco sells (largely necessities), why have sales been falling, despite household’s tight budgets?
- Into which market structure would you place the supermarket sector? Explain your answer by considering each of the assumptions behind the market structure you choose.
- Why have Tesco’s rivals been gaining ground on Tesco?
- How might this latest sales data affect Tesco’s share prices?
- Based on what the analysts are saying about the food sector, can we deduce anything about the future of the UK economy in the coming months?
Centrica, owners of British Gas, has warned that electricity and gas prices in the UK are set to rise in the autumn. Centrica blames this on the expected rise in the costs of wholesale gas and other non-energy inputs.
One of the other ‘big six’ energy suppliers, E.On, has responded by saying that it will not raise energy prices this year. Whether it will raise prices after 1 Jan next year remains to be seen.
Last autumn, household energy prices rose substantially: between 15.4% and 18% for gas and between 4.5% and 16% for electricity. This spring, in response to lower wholesale energy prices, suppliers cut prices for either electricity or gas (but not both) by around 5%.
The government and various pressure groups are encouraging consumers to use price comparison sites to switch to a cheaper supplier. The problem with this is that supplier A may be cheaper than supplier B one month, but B cheaper than A the next. Nevertheless, switching does impose some degree of additional competitive pressure on suppliers.
More powerful pressure could be applied by ‘collective switching’. This is where a lot of people switch via an intermediary company, which sources a deal from an energy supplier. This collective buying is a form of countervailing power to offset the oligopoly power of the suppliers. Such schemes are being encouraged by the Energy Minister, Ed Davey.
The other approach, apart from doing nothing, is for Ofgem, the energy regulator, to impose tough conditions on pricing. But at present, Ofgem’s approach has been to try to make the market more competitive (see also), rather than regulating prices.
British Gas owner Centrica warns of higher energy bills BBC News (11/5/12)
E.ON to keep residential energy prices unchanged in 2012 Reuters, Adveith Nair (14/5/12)
E.ON promises to hold energy prices for 5million customers in 2012 This is Money, Tara Evans (14/5/12)
British Gas owner Centrica feels cold blast from critics ShareCast, John Harrington (11/5/12)
Gas and electricity price battle lines drawn BBC News (14/5/12)
Taking on the energy giants: The co-operative insurgency gains ground Left Foot Forward, Daniel Elton (11/5/12)
Group Energy Buying hits the UK Headlines Spend Matters UK/Europe, Peter Smith (11/5/12)
Think tank calls for competition to break Big Six rip-off Energy Live News, Tom Gibson (30/4/12)
Collective switching will not fix the UK’s broken energy market Guardian, Reg Platt (27/4/12)
Make your own small switch for cheaper energy The Telegraph, Rosie Murray-West (14/5/12)
Questions
- What are the barriers to entry in the electricity supply market?
- How competitive is the retail energy market at present?
- To what extent do price comparison sites put pressure on energy companies to reeduce prices or limit price increases?
- What scope is there for collective buying of gas and electricity from the six energy suppliers by (a) households; (b) firms?
- Assess Ofgem’s package of proposals for a simpler and more competitive energy market.
46p – that buys you a First Class stamp. However, the price will now rise to 60p and the price of a Second Class stamp will increase to 50p from 36p, as Ofcom lifts some price caps. These significant price rises have seen shortages of stamps emerging across the country. As people anticipate the price rise, individuals and businesses are buying up stamps while they remain relatively cheap.
The problem is that this has started to result in a stamp shortage, so much so that the Royal Mail has now begun rationing retailers’ supply of stamps, capping each retailers’ supply this month to 20% of its annual allocation. A Royal Mail spokesman said:
“We are more than happy for retailers to receive the normal commercial return they obtain on stamps and no more than that … That is why we have put in place a prudent allocation policy to safeguard Royal Mail’s revenues and ensure there are more than enough stamps for people to buy both now and in the future.”
With postage volumes falling, as individuals turn to other methods of communication, Royal Mail says that this price rise is essential to keep this universal service going. Revenues have been low and the Royal Mail has been loss-making for some time.
However, while the price rise may help the Royal Mail, many businesses may suffer in its place. One optician, who sends out approximately 5,000 reminders to patients each year intends to bulk-buy 10,000 stamps in the hopes of saving some £1,400 when prices of stamps rise. An IT worker bought 20 books of 12 first-class stamps and said ‘If I could afford it, I would buy a lot more’. Many are unhappy at the ‘shameless profiteering at the public’s expense’, but whatever your opinion about the price rise, it does make for an interesting case of demand and supply. The following articles consider this stamp shortage.
Man’s 10,000 stamp panic: stampede for stamps leaves a 1st class mess as Royal Mail introduces rationing ahead of 30% price rise Mail Online, Colin Fernandez and John Stevens (15/4/12)
Stamps rationed by Royal Mail in run up to price rise (including video) BBC News (13/4/12)
Stamp rationing could hit pensioners Telegraph, James Hall (14/3/12)
Stamp sales limited ahead of price hike Sky News (13/4/12)
How stamp collecting came unstuck Guardian, Hunter Davies (13/4/12)
Royal Mail limits supply of stamps ahead of price rise Telegraph, James Hall and Andrew Hough (12/4/12)
’Profiteering’ Royal Mail limits supply of stamps before price rise Guardian, David Batty (13/4/12)
Royal Mail’s stamp price rises come into force BBC News (30/4/12)
How businesses will be affected by Royal Mail’s changing prices BBC News, Catherine Burns (28/4/12)
Questions
- If people expect prices to rise, what will happen to the demand curve? Illustrate this idea on a demand and supply diagram?
- If suppliers anticipate a price rise, what would their best strategy be?
- On a demand and supply diagram, illustrate the shortage of stamps that has emerged. If left to the free market, what should happen to the price of stamps?
- Why could pensioners and those in rural areas be the most adversely affected by this shortage and price rise?
- Why could ‘children and new collectors’ be priced out of the market?
- Why will small businesses be affected by this price hike? How could their customers be affected?
