Tag: price elasticity of demand

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

  1. Explain what is likely to happen to food prices. What are the explanations given in the report?
  2. Represent the analysis on a supply and demand diagram (or diagrams).
  3. 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?
  4. 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

  1. Use supply and demand analysis to explain why raw material prices have risen so rapidly. Illustrate your answer with a diagram.
  2. Use supply and demand analysis to explain why grain prices have fallen. Again, illustrate your answer with a diagram.
  3. 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?
  4. 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?
  5. 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?
  6. Why has a rise in factory gate prices led to a rise in the sterling exchange rate?
  7. 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?

Whilst the internet and technological developments provide massive opportunities, they also create problems. For some time now, newspapers have seen declining sales, as more and more information becomes available online. Type something into Google or any other search engine and you will typically find thousands of relevant articles, even if the story has only just broken. As revenue from newspaper sales falls, revenue has to be made somewhere else to continue investment in ‘frontline journalism’. The question is: where will this come from?

The Financial Times and News Corp’s Wall Street Journal charge readers for online access and we can expect this to become more common from May, when the Times and the Sunday Times launch their new websites, where users will be charged for access. Subscription to these online news articles will be £1 per day or £2 for weekly access. Whilst the Executives of the Times admit that they will lose many online readers, they hope that the relatively low price, combined with a differentiated product will be enough of an incentive to keep readers reading.

Critics of this strategy argue that this a high risk strategy, as there is so much information available online. Whilst the BBC does plan to curtail the scope of its website, the Times and Sunday Times will still face competition from them, as well as the Guardian, the Independent, Reuters, etc., all of whom currently do not charge for online access. However, if you value journalism, then surely it’s right that a price should be charged to read it. Only time will tell how successful a strategy this is likely to be and whether we can expect other online news sites to follow their example.

Times and Sunday Times websites to charge from June (including video) BBC News (26/3/10)
Murdoch to launch UK web paywall in June Financial Times, Tim Bradshaw (26/3/10)
Times and Sunday Times websites to start charging from June Guardian, Mercedes Bunz (26/3/09)
News Corp to charge for UK Times Online from June Reuters (26/3/10)
Murdoch-owned newspaper charges for content BBC News (14/1/10)

Questions

  1. Why have newspaper sales declined?
  2. How might estimates of elasticity have been used to make the decision to charge to view online articles?
  3. ’If people value journalism, they should pay for it.’ What key economic concepts are being considered within that statement?
  4. Why is charging for access to the Times Online viewed as a high-risk strategy?
  5. What are the advantages and disadvantages of this strategy? To what extent do you think it is likely that other newspapers will soon follow suit?
  6. Which consumers do you think will be most affected by this strategy?
  7. In what ways might non-pay sites gain from theTimes’ charging policy?
  8. Would you continue to read articles from the Times linked from this site if you had to pay to access them? If so, why? If not, why not? (We want to know!!)

Up until a year ago, milk and cheese prices were soaring woldwide (see Cheddar – the king of cheeses at £2000 per tonne). A surging world economy and rapidly growing demand from China and India were driving up commodity prices, including milk and milk-based producs. In the UK, average farmgate prices for milk had risen from 19 pence per litre (ppl) in 2006 to 27.4ppl by October 2008 (see here for data). Since then, however, as the global economy has plunged into recession, milk prices have fallen. By September 2009, the farmgate price had fallen by over 18 per cent to around 22.4ppl. With rising costs for fuel and cattle feed, many dairy farmers are now making a loss and are either quitting, or considering quitting, the industry.

It’s a similar story in Europe, North America and other dairy producing regions of the world. In Europe “the mood is turning sour. Last week 300 tractors dragged milk containers over fields in southern Belgium, dumping a day’s worth of production (see video). Similar protests were made in Germany, France, the Netherlands and Luxembourg. The crisis has driven many EU farmers into a ‘milk strike’, with thousands refusing to deliver to the industrial dairy conglomerates that produce everything from skimmed milk to processed cheese.”

So is this just market forces in action and will prices rise again as the world economy recovers? Or is it a reflection, in part, of the monopsony power of the supermarkets and the milk processing industry? The following articles look at the issues, both in the UK and the rest of Europe and in the USA.

Milk ‘strikes’ and shortages hit Europe as UK dairy industry reels from crisis Observer (20/9/09)
German agriculture ministers meet as European milk crisis escalates Deutsche Welle (17/9/09)
EU Milk Strike Joined by More Than 60,000 Farmers, Group Says Bloomberg (18/9/09)
EU to boost aid for dairy farms BBC News (17/9/09)
Milk: Commission proposes further measures to help dairy sector in short, medium and long term European Commission Press Release (17/9/09)
Milk output fell in August as dairies cut herds Chicago Daily Herald (19/9/09)
New England tries to save dairies The News Journal (Delaware) (20/9/09)

Questions

  1. For what reasons are many dairy farmers now making a loss?
  2. For what reasons has the power balance in the wholesale milk market shifted towards milk purchasers (such as supermarkets) and away from farmers?
  3. How would a phased liberalisation of EU milk production help the UK’s dairy farmers?
  4. Discuss the likely effectiveness of the European Commission’ proposed measures to help dairy sector in short, medium and long term.
  5. What is likely to happen to milk prices over the next two years and what will be the likely effect on supply? Explain your answer and consider the relevance of price elasticity of supply.
  6. “Agriculture officials and farmers in Vermont, New Hampshire and Massachusetts have launched a program called Keep Local Farms. … Organizers say they hope to appeal to consumers’ growing taste for local foods” (see final linked article above). What determines the likely effectiveness of such ‘buy local’ movements? What incentives are there for people to buy local? If countries in general encourage people to buy local, is this a zero sum game? Explain.

The US Institute of Medicine of the National Academies has recently published a 92-page on report on childhood obesity and the use of taxes on junk foods to tackle the problem. In the report, titled Local Government Actions to Prevent Childhood Obesity, “a panel of experts suggested such taxes could play an important role in helping children make healthier eating choices”.

Meanwhile, in Australia, the Federal Government’s preventive health taskforce argued, amongst other things, that “junk food advertising should be phased out, the cost of cigarettes should be more than $20 a packet, and soft drinks and cask wine should be hit with higher taxes”.

So how effective are higher taxes in achieving a reduction in ill health associated with eating, drinking and smoking? If adopted, what is the socially optimum design and rates of such taxes? What other complementary policies could be adopted? The following articles consider the issues.

More support for a junk-food tax Los Angeles Times (2/9/09)
Tax junk food, drinks to fight child obesity-report Reuters (31/8/09)
Could Raising Taxes on Junk Food Curb Obesity? eMaxHealth (2/9/09)
Junk food and tobacco under fire The Age (Australia) (2/9/09)
What price health? The Australian (2/9/09)

Questions

  1. For what reasons does the free market fail to achieve an optimum level of consumption of junk foods, alcohol and cigarettes?
  2. How would you determine the socially optimum level of consumption of such products?
  3. How are the price, income and cross-price elasticities of demand, and the price elasticity of supply, relevant to assessing the effectiveness of taxes for reducing the consumption of unhealthy products?
  4. What determines the incidence of taxes on unhealthy products?
  5. What other policies would you advocate to tackle the problems associated with consuming unhealthy products? How would they affect the price elasticity of demand for such products.
  6. To what extent do the objectives of social efficiency and equity conflict when designing appropriate policies to discourage unhealthy consumption?