Tag: externalities

The Civil Aviation Authority (CAA) – the regulatory body for Britain’s airports – has allowed the main airport operator BAA to increase substantially the landing charges it levies on airlines. The airlines have reacted angrily and argued that the higher charges will simply be passed on to passengers in the form of higher fares.

Q&A: Airport landing fees BBC News Online (11/3/08)
BAA to raise airport landing fees BBC News Online (11/3/08)
Fares will rise as fees cap is lifted Guardian (cartoon) (12/3/08)
Fares will rise as fees cap is lifted, airlines warn Guardian (12/3/08)

Video

BAA to raise landing fees BBC News Online

Questions

1. Explain the regulatory system in operation for the control of landing fees at UK airports .
2. Explain why the CAA has increased the landing fees that BAA can charge for planes landing at UK airports.
3. Is raising landing fees an efficient method of internalising the externalities associated with air travel?
4. Evaluate the extent to which the higher landing fees will be passed on to airline passengers. Use diagrams as appropriate. You may also like to consider the relevance of the price elasticity of demand for air travel in determining the extent to which the higher landing fees can be passed on by the airlines.

2008 may yet come to be seen as the year that marks the death of the single-use plastic bag. Many countries around the world, including China, have banned their use and February 2008 has seen Marks and Spencer announcing a 5p charge per plastic bag in an attempt to reduce their usage. Even government departments have faced criticism over their use as promotional tools. For more details on plastic bag bans and policies relating to limiting their usage, see our 2007/8 podcast on The economics of plastic bags elsewhere on the site.

M&S hopes to cut plastic bag use with 5p levy Guardian (28/2/08)
Brown may legislate against free plastic bags Guardian (29/2/08)
Q&A: Plastic bags Guardian (28/2/08)
M&S to charge 5p for carrier bags BBC News Online (28/2/08)
Brown threatens supermarkets over plastic bag reduction Times Online (29/2/08)
Government accused over plastic bag waste Guardian (29/2/08)
Agency scraps use of plastic bags for Whitehall promotions Guardian (1/3/08)
Plastic bag bans around the world BBC News Online (28/2/08)

Videos
M&S to charge for carrier bags BBC News Online (February 2008)
M&S boss on plastic bags BBC News Online (February 2008)
M&S to start charging for plastic bags BBC News Online (February 2008)

Questions

1. What are the social costs and benefits resulting from the use of single-use plastic
bags?
2. Using diagrams as appropriate, show how the equilibrium price and quantity of plastic bags differs from the social optimum.
3. Evaluate two possible policies that the government could use to reduce the use of plastic bags.

In the article below, Ashley Seager from the Guardian argues that the government is doing little to encourage the take-up and adoption of alternative forms of energy generation for households. Indeed he argues hat the situation has got worse and not better in recent months with changes in the system. Only 270 houses were helped with the fitting of photovoltaic systems last year. In Germany the equivalent figure was 130,000.

Reasons to see red over green energy Guardian (18/2/08)

Questions

1. Assess the external costs and external benefits resulting from installing a photovoltaic electricity generation system on a house.
2. Using diagrams as appropriate, show how the installation of photovoltaic cells on houses will alter the socially optimal market equilibrium.
3. Evaluate two policies that the government could use to encourage the more widespread adoption of alternative methods of generating power.

Cement may be quietly emerging as one of the biggest obstacles to lowering carbon emissions to reduce the extent of global warming. The cement industry rarely features in media analysis of the ‘worst polluters’, but in fact the industry is responsible, because of the high energy requirements of manufacture, for more than 5% of carbon dioxide emissions. A building boom globally has fuelled demand for the material. Concrete is the second most used product on the planet, after water, so what can be done to reduce the impact of the industry on the environment?

The unheralded polluter: cement industry comes clean on its impact Guardian (12/10/07)

Questions

1. With reference to the article, identify the main external costs resulting from the production of cement.
2. Discuss the view expressed by Dimitri Paplexopoulos, managing director of Titan Cement that “.. [c]ement is needed to satisfy basic human needs, and there is no obvious substitute, so there is a trade-off between development and sustainability“.
3. Discuss policies that governments could adopt to try to move the market for cement towards a more socially optimal level of production.

A report from Cycling England has suggested that a £70m investment in cycling each year could save the government £520m per year. The savings result from the positive benefits of increased cycling – lower carbon dioxide emissions and lower NHS costs as we become healthier. But, do the numbers add up?

Investment in cycling could save £520m, government told Guardian (17/9/07)

Questions

1. Define the terms (i) external benefits (ii) external costs and (iii) marginal social benefit.
2. Identify three external benefits that result from increased cycling.
3. Using diagrams as appropriate, show how the market equilibrium and the socially optimum level of cycling will differ.
4. Discuss policies that the government could adopt to move the market closer to the social optimum.