The ‘tragedy of the commons’ refers to the overuse of common land. If people can freely graze their animals on such land and have no responsibility for maintaining it, then the land will be overused and everyone will suffer. The problem is that the benefit of using the land occurs to the individual whereas the cost is collectively incurred.
There are many modern examples of the tragedy of the commons and the articles below look at some of them. Perhaps surprisingly, not all cases of the use of common resources end in tragedy; some common resources are used sustainably. A more thorough analysis must involve deeper questions of human motivation and behaviour.
IT’s tragedy of the commons Datamation (IT Management) (8/4/09)
The Tragedy of the Commons TechFlash (7/4/09)
Encarta’s failure is no tragedy Guardian (7/4/09)
How Self-Interest Destroyed The Economy The Huffington Post (23/3/09)
What does The Pirate Bay ruling mean for the web? Telegraph (17/4/09)
Tragedy of the Commons The Manila Times (23/3/09)
Questions
- Explain how the tragedy of the commons arises and give some examples other than common grazing land.
- How and why does the tragedy of the commons occur in information technology? Consider the benefits and costs of the ‘fix’ to the problem advocated in the first linked article.
- Does the case of Wikipedia (see the third linked article) disprove the proposition that common resources will be overused?
- To what extent is free access to content (music, newspapers, videos, books, etc.) a tragedy of the commons? Is the only solution to devise an effective charging model that rewards content creators?
Peak oil is an important concept for the oil market. Peak oil is the moment in time at which the maximum extraction rate of oil is reached. From this moment on, production will decline. Basic economics tells us that the oil price will tend to rise from then on (unless demand were to fall faster), but the complexities of the demand and supply for oil dictate that there will not be a simple inverse relationship between the supply of oil and the price. In the articles below George Monbiot interviews Faith Birol, the Chief Economist of the International Energy Agency and the Asia Times article looks at the extent to which world economies rely on oil for energy and other needs. Oil prices may be low at the moment and the market may be awash with excess oil and not enough demand for it, but this is a short term phenomenon; there is little doubt about the long-term direction of the price.
When will the oil run out? Guardian (15/12/08)
Be careful what you wish for Asia Times (15/1/09)
Questions
- Write a short paragraph explaining what is meant by peak oil.
- Using diagrams as appropriate, explain the changes that took place in the oil price in the last six months of 2008.
- Analyse the likely impact on the UK economy of arriving at peak oil output in (a) the short term and (b) the long term.
- Discuss when peak oil is likely to arrive.
EU leaders at a Brussels summit have agreed a plan to cut emissions. This will involve the 27 EU countries cutting greenhouse gas emissions by 20% by 2020 compared with 1990 levels. The aim is also to try to raise renewable energy sources to 20% of total energy use. The package has become known as the 20/20/20 package, but scientists have already argued that these measures may not be sufficient to prevent serious climate change.
Fiddling with words as the world melts The Economist (18/12/08)
Climate deal is far too little too late Guardian (15/12/08)
EU leaders claim historic agreement on cutting pollution Guardian (13/12/08)
Climate change: EU leaders reach compromise deal on emissions Guardian (12/12/08)
World needs ‘climate revolution’ BBC News Online (11/12/08)
EU climate package explained BBC News Online (5/12/08)
EU leaders reach new climate deal BBC News Online (12/12/08)
Questions
- Identify two external costs that result from climate change.
- Using diagrams as appropriate, illustrate the impact of the EU climate change deal on the market for electricity.
- Discuss the extent to which the EU climate change deal will lead to an increase in the supply of renewable energy sources. How quickly are these changes in supply likely to take effect?
- Examine two other policies that national governments could implement to reduce carbon emissions.
Billions of plastic bags are used and discarded each year around the world and these cause considerable environmental damage – a form of market failure. In this podcast we consider the extent of the problem and policies that countries around the world are adopting to try to minimise this market failure. Many countries, including China, have banned single-use plastic bags completely, while others, such as Ireland, have chosen to tax them to try to limit their use.
Britain’s recycling strategy is under risk following a collapse in waste paper prices. Three quarters of UK waste paper is exported to Far Eastern buyers, but demand from this region has collapsed in recent months. The price collapse has led to a surplus of recyclable paper and some local authorities have proposed using Ministry of Defence (MoD) sites to store the waste while there is no market or use for it.
Paper price collapse blows hole in Britain’s recycling strategy Guardian (11/11/08)
Recycled waste could be stored on MoD bases Guardian (16/11/08)
Questions
- Define the terms (i) private cost and (ii) external cost.
- What are the external costs resulting from disposing of waste paper and other recyclable products in landfill sites?
- Using diagrams as appropriate, illustrate the changes that have taken place in the market for waste paper.
- Evaluate two strategies that the government could adopt to increase the price of waste paper.
- Discuss the likely success of a policy of storing waste on MoD sites to await an upturn in the recycling market..
