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?
When crude oil prices go up, the prices of petrol and diesel go up pretty well straight away and by the full amount, or more, of the crude price rise. When crude prices go down, however, road fuel prices are often slow to fall; and when they do, the fall is less than the full fall in crude prices.
Click on charts below for a larger version. Click here for a PowerPoint of the left-hand chart.
In response to complaints of motorists and haulage companies, the Office of Fair Trading has announced that it will investigate the link between crude prices and prices at the pump. It will report in January 2013.
The review will consider questions of competition and market power. In particular, it will look at the power of the oil companies in determining the wholesale price of road fuel.
It will also examine the retail fuel sector and whether supermarkets are driving out independent retailers. The claim of many independent petrol stations is that supermarkets are selling below cost as a lost leader to encourage people to shop in their stores. They also claim that supermarkets use their buying power to obtain fuel more cheaply.
What is more, most of the petrol stations that are not part of supermarkets are owned by the oil companies. Again, independents claim that oil companies supply fuel more cheaply to their own stations than to independents.
As a result of what many independents see as unfair competition, many are driven out of business. Today there some 9000 petrol stations in the UK; 20 years ago there were twice as many.
The following articles look at the remit of the OFT investigation and at the competition issues in the road fuel market.
Articles
Formal inquiry tries to ease motorist pain at the pumps ITV News, Laura Kuenssberg (5/9/12)
OFT to scrutinise retail petrol market Financial Times, Caroline Binham (5/9/12)
OFT launches probe into pump prices Channel 4 News (5/9/12)
Petrol and diesel prices: Office of Fair Trading launches competition inquiry Guardian, Terry Macalister (5/9/12)
Petrol and diesel price review is launched by OFT BBC News (5/9/12)
Are supermarkets to blame for the devastation of independent petrol retailers by deliberately selling at a loss? This is Money, Tom Mcghie and Neil Craven (8/9/12)
OFT petrol pricing probe welcomed The Grocer, Beth Phillips (7/9/12)
Private businesses welcome OFT’s fuel price investigation Talking Retail (6/9/12)
10 charges that make consumers scratch their heads BBC News Magazine, Lucy Townsend (6/9/12)
Data
Crude Oil Price Index Index Mundi
Daily Brent Crude Spot Price, 1987 to present day US Energy Information Administration
Current UK Petrol Pump Prices What Pric£?
Fuel Prices WhatGas.com
Questions
- Describe the structure of the road fuel market, from oil production through to the retailing of petrol and diesel.
- What is meant by the terms ‘monosony’ and ‘oligopsony’? Which companies in the road fuel market have significant monopsony/oligopsony power?
- What determines the price elasticity of demand for road fuel in (a) the short run; (b) the long run? What implications does this have for the value of the short-run and long-run price elasticities?
- Where is the abuse of market power likely to occour in the road fuel market?
- To what extent is it in the consumers’ interests for supermarkets to sell road fuel below average cost?
- Examine the data for pump prices and crude oil prices and establish whether there is any truth in the claim that pump prices adjust rapidly to a rise in crude prices and slowly to a fall in crude prices.
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?
Oligopoly: it’s a complex market structure and although closer to the monopoly end of the ‘Market Structure Spectrum’, it can still be a highly competitive market. The characteristics are well-documented and key to the degree of competition within any oligopoly is the number of competitors and extent to which there are barriers to entry.
The greater the barriers and the fewer the competitors the greater the power the established firms have. This can then spell trouble for pricing and hence for consumers. The following articles are just some examples of the oligopolies that exist around the world and some of the benefits and problems that accompany them.
Articles
Oligopoly of PSU oil cos reason for high ATF prices The Indian Express, Smita Aggarwal (30/4/12)
Group energy buying hits the UK headlines Spend Matters UK/Europe(18/1/11)
German cartel office probes petrol companies on pricing Fox Business (4/4/12)
Gov’t unveils steps to lower fuel prices Yonhap News (19/4/12)
How big banks threaten our economy Wall Street Journal, Warren Stephens (29/4/12)
UK Governance: Call for Whitehall to simplify the landscape for SME suppliers to win more government contracts The Information Daily (26/4/12)
Other blogs
Pumping up the price: fuel cartels in Germany April 2012
Energy profit margins up by over 700% October 2011
Every basket helps October 2011
The art of oligopoly December 2010
Questions
- What are the assumptions of an oligopolistic market structure?
- Consider (a) the energy sector and (b) the banking sector. To what extent does each market conform with the assumptions of an oligopoly?
- In the ‘Spend Matters’ article, a group of people in a Lincolnshire village formed a local buying consortium to negotiate deals for heating oil. What could we refer to this as?
- To what extent is an oligopoly in the public interest?
- Explain how barriers to entry in oligopolies affect the competitiveness and efficiency of a market.
- Illustrate how an oligopolistic market structure can fix prices and hence exploit consumers.
- How have the actions of the big oil companies in both the UK and Germany been against independent retailers and the consumer interest?
- What action can governments take to break up oligopolies? Will it always be effective?
Vodafone has offered to purchase Cable & Wireless Worldwide (C&WW), with Vodafone paying 38p per share, making this deal worth £1.044bn.
This deal, however, was rejected by C&WW’s largest shareholder, Orbis, within hours, as the price was not high enough, despite the 38p per share offer representing a 92% premium to the level of C&WW’s share price before the bid interest emerged in February. A spokesperson for Orbis said:
‘Although we believe the C&WW management team has handled the bid process responsibly, we have declined to give an irrevocable undertaking or letter of intent to the support the transaction.’
However, with the only other interested party, Tata Communications withdrawing, Vodafone was the only remaining bidder. As such, many suggest that this deal is a good one for the struggling business, despite Orbis’ claim that it under-values the business.
Adding a UK fixed-line cable to Vodafone’s business will increase its capacity, which is much needed at this moment in time with the added demand for mobile data from increased Smartphone usage. Cost savings are also expected from this merger, as the company will no longer have to pay to other companies to lease its fixed-line capacity.
The bid from Vodafone did help C&WW’s trading performance, which had been worsening for some time and so some shareholders will be glad of the bid. Its shares were up following this deal and it went to the top of the FTSE250. Vodafone will also benefit, as this merger would make it the second largest combined fixed and mobile line operator in the UK.
The trends of these two companies in recent years have been very much in contrast. C&WW had been the larger of the two firms up until 1999, yet the price Vodafone would now pay for the company represents a mere 1% of its current market value. The following articles consider this merger.
Vodafone bids for Cable and Wireless: The end of the line The Economist (24/4/12)
Questor shares tip: Vodafone deal looks goodThe Telegraph, Garry White(23/4/12)
Vodafone puts paid to once-revered C&WW Financial Times, Daniel Thomas (23/4/12)
Top CWW shareholder rejects sale to Vodafone Independent, Gideon Spanier (24/4/12)
CWW accepting Vodafone’s £1bn bid is a good call The Telegraph, Alistair Osborne (23/4/12)
Vodafone agrees £1bn deal for Cable & Wireless Worldwide Guardian, Julia Kollewe and Juliette Garside (23/4/12)
Vodafone agrees £1bn takeover of C&W Worldwide BBC News (23/4/12)
Questions
- Into which market structure would you place the above industry? Explain your answer.
- Which factors have caused C&WW’s worsening position? In each case, explain whether they are internal or external influences.
- What type of merger is that between C&WW and Vodafone?
- Explain some of the motives behind this merger.
- Which factors have caused these two companies to have such different trading performances in the last 15 years?
- Why was the announcement of the bid followed by better share prices for C&WW?
- Is there any reason why the competition authorities should be concerned about this merger?
