As students, many of you probably have a student identification card, which you might use when you go to the cinema or when you buy something in a shop offering student discounts. Your parents or grandparents, if they are 60 or over, may get similar discounts, and your younger siblings or nieces and nephews may pay nothing for certain services.
It doesn’t cost a cinema more to provide a seat for an adult than it does for a child, a student or a senior citizen. So, why is it that firms can charge different groups of consumers different prices, even though they are consuming the same good or service? We are, of course, referring to the ability of a firm to price discriminate. The following short cases look at the concept in action.
Price discrimination: Russians get a discount Daily Markets, Mark Perry (12/10/10)
Theme park tickets and passes for Florida residents Walt Disney World 2010
Price discrimination: India and Disney World Daily Markets, Mark Perry (10/10/10)
Freedom’s just another word for getting a state subsidy The Economist (18/10/10)
Questions
- What are the different types of price discrimination?
- In the cases in the articles above, what type of price discrimination is being used?
- Illustrate this concept on a diagram and explain why a firm would use price discrimination. How will it affect revenue and profits?
- What are the key conditions needed for price discrimination to take place? In the cases above, why is it that British consumers are charged a higher price? What does this tell us about their price elasticity of demand?
- What forms of price discrimination (a) are being practised by US private universities and (b) being proposed in the Browne report for students at English universities?
- What other examples of price discrimination can you think of? Try and think of examples that fit into the different types of price discrimination.
Rising costs of cloth and a rise in VAT could mean that clothes prices are set to rise. Does this spell the end of cheap fashion from the likes of Primark and H&M? Or can they absorb the cost increases?
The following articles look at the causes of the rise in costs of clothing and what the cheap fashion chains can do about it.
Articles
Primark follows fashion rivals as it warns of rising costs Guardian, David Teather and Zoe Wood (13/9/10)
Primark warns on costs as growth slows Telegraph, James Hall (14/9/10)
Is this the end of cheap clothes era? Price of cotton has rocketed because of floods, Primark warns Mail Online, Sean Poulter (14/9/10)
Fashion chains far from cheerful about future of cheap chic Observer, Zoe Wood, David Teather and Julia Finch (19/9/10)
Data
Commodity prices (including cotton) Index Mundi
Cotton futures BBC Business: Commodities
Questions
- Why have cotton prices been rising? Illustrate your arguments with a demand and supply diagram.
- Would you expect a rise in the price of cotton of 45% to lead to a rise in the price of cotton clothes of 45%, or of more than 45% or of less than 45%? Explain.
- For what other reasons are the prices of clothing rising?
- How did the process of globalisation keep the price of clothing down?
- Next’s chief executive, Lord (Simon) Wolfson said that if prices of Next’s clothes go up 8% then the number of units sold will fall by 10%. What is the value of the price elasticity of demand that he is assuming?
- Why is the ‘Fairtrade system so important’?
- “Some retailers have already increased prices but there is more to come. The products most under threat are T-shirts, underwear and socks. More complicated garments such as heavy jeans will be less affected.” Why are the prices of more complicated garments likely to rise by a smaller percentage than those of simple garments?
- What has been happening to the demand for cheap fashion clothing and why? Combine this effect with those of costs on a demand and supply diagram.
- What type of market structure is the market for fashion clothing? What are the implications of this for the profits of retailers?
The prices of grains and other foodstuffs are rising rapidly. Wheat prices rose some 40 per cent in July and have continued to rise rapidly since. In June wheat futures were trading at around 450 US cents/bushel. By early September, they were trading at around 700 US cents/bushel. Global food prices generally rose by 5% over the two months July/August. And it’s not just food. Various other commodity prices, such as copper and oil, have also increased substantially.
At the beginning of September there were three days of food riots in Mozambique in protest against the 30% rise in the price of bread. Seven people were killed and 288 were injured. On 2 September Russia announced that it was extending a ban on wheat exports for another 12 months following a disastrous harvest. In Pakistan, the floods have destroyed a fifth of the country’s crops. Drought in Australia and floods in the Canadian prairies have reduced these countries’ grain production.
In response to the higher prices and fears of food riots spreading, the United Nations has called a special meeting on 24 September to bring food exporters and importers together to consider “appropriate reactions to the current market situation”. And yet, although global cereal production is down by some 5% on last year, it is still predicted to be the third largest harvest on record.
So what is causing the price rises? Is it simply a question of the balance of supply and demand and, if so, what has caused the relevant shifts in supply and/or demand? And what role does speculation play? The following articles look at the issues and at the outlook for commodity prices over the coming months.
Clearly changes in commodity prices affect the rate of inflation. The news item (Bank of England navigates choppy waters) amongst other issues looks at the outlook for inflation and the various factors influencing it.
Articles
Commodity prices soar as spectre of food inflation is back Guardian, Simon Bowers (6/8/10)
Food inflation is a rumble that won’t go away Telegraph, Garry White (8/8/10)
Global wheat supply forecast cut BBC News (12/8/10)
Commodity crisis sparks fear of food inflation on high street Independent, James Thompson and Sean O’Grady (10/8/10)
Should we be concerned about high wheat prices? BBC News, Will Smale (6/8/10)
Commodity prices: Wheat The Economist (12/8/10)
Interactive: What’s driving the wheat price spike? Financial Times, Akanksha Awal, Valentina Romei and Steven Bernard (20/8/10)
Wheat pushes world food prices up BBC News (1/9/10)
UN to hold crisis talks on food prices as riots hit Mozambique Guardian, David Smith (3/9/10)
Grain prices spark global supply fears CBC News, Kevin Sauvé (3/9/10)
GRAINS-US wheat firms after Russian ban extension Forex Yard (3/9/10)
Global food prices reach 20 year high BBC News, John Moylan (3/9/10)
Speculators ‘not to blame for higher food costs’ BBC Today Programme, David Hightower (4/9/10)
Q&A: Rising world food prices BBC News (3/9/10)
Don’t starve thy neighbour The Economist (9/9/10)
Data
Commodity prices Index Mundi
Commodity prices BBC market data
Energy prices U.S. Energy Information Administration
Questions
- Use a supply and demand diagram to illustrate (a) what has been happening to wheat prices (b) what is likely to happen to wheat prices over the coming months?
- How relevant is the price elasticity of demand and supply and the income elasticity of demand to your analysis?
- What factors have caused the shifts in demand and/or supply of wheat and copper?
- What has been the role of speculation in the price rises? Is this role likely to change over the coming months?
- What is likely to happen to food prices in the shops over the coming months? Would you expect bread prices to rise by the same percentage as wheat? If so, why; if not, why not?
- If commodity prices generally rose by 5 per cent over the coming year, would you expect inflation to be 5 per cent? Again, if so, why; if not, why not?
The annual Agricultural Outlook for the next ten years has just been published jointly by the OECD and the UN Food and Agriculture Organization (FAO). Click here and here for audio presentations of the report by the FAO’s Jacques Diouf and the OECD’s Angel Gurría.
The report argues that world recovery will raise agricultural prices. This will be partly the direct result of higher demand and partly the result of higher prices of agricultural inputs, such as fertilisers and fuel. But prices will not rise back to the peak levels of 2007/8. These higher prices, however, would have a positive effect on world food output, especially in the BRICs (Brazil, Russia, India and China). This, in turn, would limit the price rises.
So is this good news for food producers and consumers? The following articles look at the issues
Articles
Economic upturn, energy to lift farm prices-FAO/OECD Reuters, Gus Trompiz (15/6/10)
Higher average farm prices expected, food security concerns persist, say OECD and FAO FAO Media Centre (15/6/10)
Food commodity prices to rise Financial Times, Javier Blas (15/6/10)
Price increases fuel fears of food ‘crises’ Financial Times, Javier Blas (15/6/10)
Emerging economies ‘to enjoy food production boom’ BBC News (15/6/10)
Rising crop prices can be ‘good news’ for farmers: UN/OECD MSN News, Malaysia (15/6/10)
Food prices to rise by up to 40% over next decade, UN report warns Guardian (15/6/10)
Wheat, oils and dairy prices to stay up 40% for next decade, FAO BakeryAndSnacks.com, Jess Halliday (15/6/10)
Food prices could soar up by 40 per cent in next decade, UN report warns UN News Centre (15/6/10)
Report and data
OECD-FAO Agricultural Outlook 2010-2019: portal page OECD and FAO
OECD-FAO Agricultural Outlook 2010-2019: Highlights OECD and FAO
OECD-FAO Agricultural Outlook 2010-2019: Database OECD and FAO
Commodity prices Index Mundi
Questions
- Explain what is likely to happen to food prices. What are the explanations given in the report?
- Represent the analysis on a supply and demand diagram (or diagrams).
- What is the relevance of (a) income elasticity of demand, (b) price elasticity of demand, (c) cross-price elasticity of demand, (d) price elasticity of supply, in explaining the likely future movements of food prices and why some food prices are likely to rise faster than others?
- What factors are likely to impact on the production of food in developing countries?
As the global recession began to take hold during 2008, so many commodity prices plummeted. Oil prices fell from over $140 per barrel in mid July 2008 to around $35 per barrel by the end of the year (a mere quarter of the price just 6 months previously). From early 2009, however, prices started rising again and have continued to do so during 2010. By mid April 2010, the price of oil had risen to $85 per barrel.
And it’s not just oil prices that have been rising. The prices of metals such as copper, nickel and zinc have been soaring. Since the beginning of February 2010, copper prices have risen by 18%, zinc prices by 20% and nickel prices by 46%. As the article from the Independent states:
The Office for National Statistics said that the input price index for materials and fuels purchased by the manufacturing industry rose 10.1 per cent in the year to March and rose 3.6 per cent between February and March alone. The ONS added that prices of imported materials as a whole, including imported crude oil, rose 4.4 per cent between February and March.
Much of the explanation for this has been the global recovery. But while raw material prices have been rising, grain prices have been relatively steady and recently have fallen. So how can this be explained? The answer, as always with commodity prices, lies with demand and supply, as you will see when you read the following articles.
Articles
Commodity prices fuel inflation spike Independent, Sean O’Grady (10/4/10)
Interest rates may have to rise sooner after figures point to inflation rise Guardian, Katie Allen (9/4/10)
Pound rises as UK producer prices hint at inflation BBC News (9/4/10)
Petrol price hits record high BBC News (8/4/10)
China commodity imports soar despite high costs Reuters (10/4/10)
March Output Price Inflation Highest Since Nov 08 Marketnews.com (9/4/10)
Spring season: What is pushing up the price of copper and other base metals? The Economist (8/4/10)
Factory gate price rise leads to fear of inflation Financial Advice (9/4/10)
Corn Falls as Warm, Dry Weather Will Aid Planting in the U.S. BusinessWeek, Jeff Wilson (8/4/10)
Wheat Futures Fall as U.S. Exports Slump, Global Crop to Gain BusinessWeek, Tony C. Dreibus (9/4/10)
Commodities: Chinese imports defying commodity−price rally for now FZstreet.com, Danske Research Team (12/4/10)
Data
Commodity prices can be found at the following sites:
Commodity price data BBC News: Markets
Commodity prices Index Mundi
World Crude Oil Prices U.S. Energy Information Administration (See, for example, Brent Crude Oil Prices)
UK factory gate prices can be found at:
Latest Producer Prices Office for National Statistics, and
Producer Prices portal Office for National Statistics
Questions
- Use supply and demand analysis to explain why raw material prices have risen so rapidly. Illustrate your answer with a diagram.
- Use supply and demand analysis to explain why grain prices have fallen. Again, illustrate your answer with a diagram.
- What is the significance of income elasticity of demand and price elasticities of demand and supply in explaining the price changes in questions 1 and 2?
- How would you estimate the likely effect of a 1% rise in (a) general raw material prices and (b) factory gate prices on the rate of consumer price inflation?
- Why has the price of petrol risen above the level of July 2008, given that oil prices now are only about 60% of those in 2008?
- Why has a rise in factory gate prices led to a rise in the sterling exchange rate?
- If inflation rises as a result of a rise in commodity prices, what type of inflation would this increase in inflation be? Does the answer depend on what caused the rise in commodity prices?