Category: Economics for Business: Ch 05

The law of demand tells us that when the price of a good falls, quantity demanded will rise. But, firms want to know much more than this. They need to know by how much quantity demanded will rise – we refer to this as the price elasticity of demand (PED) and we can categorise it as relatively inelastic or elastic, depending on by how much demand changes relative to the change in price. The price elasticity of demand is crucial for a firm to know, as it gives them vital information about the best price to charge and getting the price right is probably the most important element in a successful business. As Warren Buffett said in a meeting with the staff from the Federal Crisis Inquiry Commission:

‘Basically, the single most important decision in evaluating a business is pricing power. You’ve the power to raise prices without losing business to a competitor, and you’ve got a very good business. And if you have to have a prayer session before raising the price by a tenth of a cent, then you got a terrible business.’

The grammar may not be entirely correct, but hopefully you get the gist! Should a firm increase price or reduce it? Whatever action it takes, there will be an effect on demand, total revenue and profit. The key question is: what will be the effect? The answer depends on the PED.

If a firm is selling a product for which there are no close substitutes, we would expect demand to be relatively inelastic. This means that the firm can increase the price it charges without seeing any large fall in quantity. On the other hand, if a firm faces a lot of competition and hence there are many substitutes for a product, then demand becomes much more elastic – any increase in a firm’s price will lead to a proportionately larger decrease in the quantity demanded, as customers will simply switch to a cheaper alternative. The article below looks at the concept of price elasticity of demand and how it is used in practice by competing firms.

The importance of pricing power: PEP, CPB Guru Focus (16/10/11)
Pricing strong for Philip Morris in Q3, but volumes also encouraging; dividend yield attractive MorningStar (7/11/11)

Questions

  1. How do we define price elasticity of demand and what formula can we use to calculate it?
  2. If a firm faces an PED of –5, is its demand relatively inelastic or elastic and what does it mean about the responsiveness of customer demand to a change in price?
  3. If a firm faces demand that is (a) relatively inelastic (b) relatively elastic, (c) perfectly elastic (d) perfectly inelastic, what should it do to its price? Explain your answers.
  4. In the article, ‘The importance of pricing power’, is demand for the ‘Daily Racing Forum’ relatively inelastic or elastic? Explain your answer and what it means in terms of the company’s ability to change price.
  5. Is demand for cigarettes likely to be inelastic or elastic? Explain your answer. What does this suggest about a firm’s ability to pass on taxation and excise duties to its customers in the form of higher prices?
  6. Based on the data given in ‘The importance of pricing power’ about the change in demand for Campbell’s Soup and PepsiCo, what conclusions can we reach about PED? How could these firms use this information to set prices and maximise revenue and profit?
  7. Following a change in supply (due to a factor other than price), when will the impact on equilibrium price be larger than the impact on equilibrium quantity?

The price of petrol at the pumps has risen substantially over the past few years. In the UK, according to the AA, the average price between January and June 2011 was 133.13p. In the same period in 2010 it was 116.68p; and in the same period in 2008 it was 109.00p.

Over the first six months of 2011, the amount of petrol sold fell by 5.2 per cent. This was on top of the decline in consumption over the previous four years. Between 2006 and 2010 consumption of petrol fell by 17.4%. The consumption of petrol and diesel are given in the following table.

UK consumption of petrol and diesel (tonnes millions)

2006 2007 2008 2009 2010
Petrol 18.14 17.59 16.68 15.76 14.99
Diesel 20.15 21.07 20.61 20.06 20.87
Total 38.29 38.66 37.29 35.82 35.86

Source: Digest of United Kingdom energy statistics (DUKES) (Department of Energy and Climate Change)

So what has caused this decline in petrol sales? Are there multiple factors at work here? Have a look at the articles and consider the explanations.

Articles
Cash-strapped drivers cut petrol use by 15 per cent Channel 4 News (5/10/11)
Sales of petrol slump as skint motorists cut costs Daily Record, Jamie Grierson (5/10/11)
Petrol Sales Plunge As Cash Squeeze Tightens Sky News (6/10/11)
Fuel cost rise ‘forcing change in driver habits’ TRL News, Mary Treen (6/10/11)

Data
Digest of United Kingdom energy statistics (DUKES) Department of Energy and Climate Change
Fuel price report (monthly) Automobile Association
Brent Crude spot prices Energy Information Association

Questions

  1. What factors have caused a fall in consumption of petrol?
  2. If you choose to spend a set amount on petrol, what is your price elasticity of demand?
  3. What determines the price elasticity of demand for petrol?
  4. Why has the consumption of diesel fallen less than that of petrol?
  5. Under what circumstances would an increase in tax on road fuel of 3p per litre (as planned for January 2012), result in a decrease in tax revenue? Why would the price elasticity of demand for road fuel have to be significantly greater than 1 (ignoring the minus sign) and not merely above 1 for this to be the case?
  6. Why is it likely that people’s price elasticity of demand for road fuel will become less elastic the more they have cut back on consumption?
  7. Why is the demand for petrol likely to be more elastic with respect to (a) price, and (b) income over the longer term?
  8. To what extent is the demand for road fuel a ‘derived demand’?
  9. To what extent is the fall in the consumption of petrol a reflection of a movement along the demand curve for petrol or a shift in the demand curve? Explain.

The total EU budget in 2010 was €123 billion. Just under half of this (€58 billion) was spent on supporting agriculture. The programme of support – the Common Agricultural Policy (CAP) – has changed over the years. For a start, despite its being a large proportion of the EU budget, this proportion has actually been falling. In 1980, the CAP accounted for 69% of the EU budget; in 1990 it was 60%; in 2000 it was 52%; in 2010 it was 47%.

The types of support have also changed. The main method in the past was effectively to set minimum prices for various foodstuffs and for Intervention Boards to buy up any surpluses that arose from such prices being above the market equilibrium. Massive food ‘mountains’ resulted. Sometimes these surpluses were dumped on the world market; sometimes they were thrown away; sometimes they were simply kept in storage. Export subsidies and import levies (taxes) were also used to reduce surpluses. This, of course, was highly damaging to farmers in many countries outside the EU, especially in various primary exporting developing countries.

Reforms have taken place in recent years. The most important has been to replace high intervention prices with direct payments to farmers unrelated to current output. Whilst such payments still provide a substantial outgoing from the EU budget, being unrelated to current output, they do not encourage farmers to produce more and thus do not generate surpluses. Prices in most cases are allowed to be determined by the market.

The EU has just announced further reforms. These include:

&#8226 Capping total CAP spending at current levels until 2020
&#8226 Capping the total payment to any one farm to €300,000
&#8226 Relating subsidies to acreage rather than previous output
&#8226 Making 30% of the direct payments dependent on farmers meeting environmental criteria.

The following videos and articles examine the proposals and assess their likely benefits, their likely drawbacks and their likelihood of being implemented.

Videos
EU plans to reform Common Agricultural Policy for farmers BBC News, Jeremy Cooke (12/10/11)
EU unveils controversial agricultural reforms Euronews (12/10/11)
Towards a new Common Agricultural Policy Euronews (14/10/11)
Queen to lose out in shake up of Europe’s farm payments Channel 4 News (12/10/11)
Cautious welcome for EU agriculture policy shake-up STV News (12/10/11)
CAP reform proposals YouTube, Dacian Cioloş, European Commissioner for Agriculture and Rural Development (in French with English subtitles) (12/10/11)

Articles
EU farm chief: CAP plans represent profound reform Reuters, Charlie Dunmore (12/10/11)
UK to dismiss Common Agricultural Policy reforms as inadequate Guardian, David Gow (11/10/11)
EU Farm Policy Debate Pits Top Receiver France Against U.K. Bloomberg Businessweek, Rudy Ruitenberg (12/10/11)
EU plans CAP reforms for ‘greener’ farm subsidies BBC News (12/10/11)
Common Agriculture Policy farm subsidy plan unveiled BBC News (12/10/11)
Q&A: Reform of EU farm policy BBC News (12/10/11)
CAP reform: Shepherd and steward of the land BBC News, Jeremy Cooke (12/10/11)
EU agriculture policy ‘still hurting farmers in developing countries’ Guardian: Poverty Matters blog, Mark Tran (11/10/11)
EU aid to farmers to continue over next decade Financial Times, Joshua Chaffin (12/10/11)

EU publications
CAP Reform – an explanation of the main elements Europa Press Release (12/10/11)
The European Commission proposes a new partnership between Europe and the farmers European Commission Press Release (12/10/11)
EU farm policy after 2013: Commission proposals welcomed with reservations European Parliament Press Release (12/10/11)
Legal proposals for the CAP after 2013 European Commission: Agriculture and Rural Development (12/10/11)

Questions

  1. Explain why the old system of price support under the CAP led to food surpluses. Use a diagram to illustrate your analysis.
  2. What is the significance of price elasticity of demand and supply in determining the size of these surpluses?
  3. What reforms have been introduced to the CAP in recent years? What effects have these had?
  4. Explain the new proposals for the CAP after 2013.
  5. What are the likely benefits of these proposals?
  6. What are the likely drawbacks of the proposals?

Families in the UK seemed to have been squeezed in all areas. With incomes flat, inflation rising, petrol and bills high, there seems to be a never ending cycle of price rises without the corresponding increase in incomes. This has been confirmed by the latest figures released from the big six energy companies, whose profit margins have risen from £15 per customer in June to £125 per customer per year. This is assuming that prices remain the same for the coming year.

The regulator, Ofgem has said that profit margins will fall by next year and that they are ensuring that price comparisons between the big energy companies become much easier to allow consumers to shop around. It is a competitive market and yet due to tariffs being so complicated to understand, many consumers are simply unable to determine which company is offering them the best deal. There is certainly not perfect knowledge in this market. Tim Yeo, the Chair of the Energy and Climate Change Committee said the profit margins were:

‘Evidence of absolutely crass behaviour by the energy companies, with a jump in prices announced in the last few months ahead of what will be a winter in which most families face their highest ever electricity and gas bills’

Ofgem will publish proposals later this year with suggestions of how to make the market more competitive. We have already seen in the blog “An energetic escape?” how Ofgem is hoping to reduce the power of the big six by forcing them to auction off some of the electricity they generate. The aim is to free up the market and allow more firms to enter. With the winter fast approaching and based on the past 2 years of snow and cold weather, it is no wonder that households are concerned with finding the best deals in a bid to reduce just one of their bills. The following articles consider this issue.

Energy price hikes see profits soar The Press Association (14/10/11)
Energy suppliers’ profit margins eight times higher, says regulator Ofgem Telegraph (14/10/11)
Energy firms’ profit margins soar, Ofgem says BBC News (14/10/11)
Energy firms’ profits per customer rise 733%, says Ofgem Guardian, Dan Milmo and Lisa Bachelor (14/10/11)
Regulator proposes radical change to energy market Associated Press (14/10/11)
Energy bills face overhaul in first wave of reform Reuters, Paul Hoskins (14/10/11)
Ofgem tells energy companies to simplify tariffs Financial Times, Michael Kavanagh (14/10/11)
You can’t shop around in an oligopoly Financial Times, William Murray (13/10/11)

Questions

  1. What type of market structure best describes the energy market?
  2. Of the actions being taken by Ofgem, which do you think will have the largest effect on competition in the market?
  3. Are there any other reforms you think would be beneficial for competition?
  4. Why is transparency so important in a market?
  5. What barriers to entry are there for potential competitors in the energy market?
  6. Why do you think profit margins are so high in this sector?

The UK Supermarket industry is intensely competitive. It’s hard to slot it directly into a specific market structure, but it has many characteristics of an oligopoly – a market dominated by a few firms with intense competition, both price and non-price.

This competititve aspect of the market structure has become even more important as trading conditions become harsher. The latest development sees Sainsbury’s announcing its price promotion – it will match certain prices offered by Tesco and Asda in a bid to attract customers from its rivals.

The supermarket industry has a history of intense price wars and we can only expect them to increase. This is certainly in the interests of customers, as we face ever decreasing prices. It’s a market in which it certainly pays to shop around and compare prices. The following articles consider the latest developments in one of the most competitive markets out there.

Sainsbury’s joins price cut battle The Press Association (9/10/11)
Sainsbury’s follows rivals in price promotion BBC News (9/10/11)
Every basket helps, as supermarkets battle for shoppers Independent, Laura Chesters (9/10/11)
Sainsbury to extend price match trial Financial Times, Andrea Felsted (7/10/11)
Tesco profits grow but UK sales subdued BBC News (5/10/11)
Sainsbury’s to launch price match scheme The Telegraph, Harry Wallop (7/10/11)
Retail bully boys must not protect themselves unfairly Financial Times, Sarah Gordon (7/10/11)

Questions

  1. What are the characteristics of an oligopoly? To what extent do you think that the supermarket industry fits into an oligopolistic market structure?
  2. Are the price wars being carried out by Tesco, Sainsbury’s and Asda in the interests of consumers?
  3. What aspects of non-price competition have been undertaken by the big supermarket contenders? On what factors does the relative success of these pricing strategies depend?
  4. What might explain the growing presence of fast food companies in the top 100?
  5. How could the supermarkets use the concept of elasticity in determining the most effective pricing strategy?
  6. How has the economic climate affected the supermarket industry? Would you expect the impact to be smaller or larger than that in other sectors of the economy? Explain your answer.