Category: Economics for Business: Ch 20
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. |
Rapidly rising food prices have led to instability in many countries and have fuelled inflation in less developed economies where food spending is a greater proportion of overall consumer spending. A number of factors have contributed to this rapid rise in prices, but one important contributory factor is the move towards growing crops that can be used as bio-fuels in the developing world and this shift in production is having a knock-on effect in world food markets.
Big food companies accused of risking climate catastrophe Guardian (8/11/07)
An agricultural crime against humanity Monbiot.com (6/11/07)
Global food crisis looms as climate change and fuel shortages bite Guardian (3/11/07)
Questions
| 1. |
Identify the main factors that have led to rising world food prices. |
| 2. |
Assess the extent to which the move towards bio-fuels has contributed to the rise in world food prices. |
| 3. |
Explain how the impact of rising food prices differs in the developed and developing world. |
| 4. |
Discuss policies that governments could adopt to ameliorate the impact of rising food prices on the level of economic growth. |
Al Gore’s contribution to the global climate change debate is not in question and he has, along with the IPCC, been awarded the 2007 Nobel Peace Prize for his work in raising awareness. If you haven’t seen his film “An inconvenient truth” then do get hold of the DVD – it may just be the most interesting PowerPoint presentation you will ever see! However, does he really understand the nature of the debate? The article below suggests that he has not yet taken account of the most fundamental trade-off in dealing with climate change – the trade-off between our own quality of life and that of our descendants in the future.
Save the earth in six hard questions MSN Slate (22/10/07)
Questions
| 1. |
Explain what is mean by a trade-off “between the quality of our own lives and the quality of our descendants’ [lives]”. |
| 2. |
What is meant by the term ‘risk-averse’ and how is this relevant in the climate change debate? |
| 3. |
Consider the questions raised by the article. Discuss how relevant the conclusion reached is in the light of these questions. |
In its first report on the impact of bio-fuels, the United Nations (UN) has warned that such fuels may increase poverty in developing countries and have a wider environmental impact than has in the past been suggested. With oil prices at a record high and with climate change pressures, much of the developed world has adopted targets for bio-fuels, but environmentalists have warned that the rush to grow the raw materials for bio-fuels may be more damaging to the environment than the fossil fuels they will replace.
Global rush to energy crops threatens to bring food shortages and increase poverty, says UN Guardian (9/5/07)
UN warns on impacts of biofuels BBC News Online (9/5/07)
UN raises doubts on biofuels Guardian (9/5/07)
Questions |
| 1. |
What are the external costs and external benefits resulting from the use of bio-fuels as opposed to fossil fuels? |
| 2. |
Using diagrams as appropriate, show the impact of increased use of bio-fuels on the social equilibrium in the market for fuel. |
| 3. |
Assess policies that European governments could put in place to ensure that the move towards increased use of bio-fuels has a positive environmental impact. |
You do perhaps need to check the date for this story, but once you have established that it wasn’t written on April 1st, you can start to take it a little more seriously. An alliance of an American oil company and food producer is to turn pig fat into diesel fuel. The fuel will apparently have the same chemical properties as diesel but a lower carbon dioxide content and zero sulphur, so should be beneficial for the environment the companies argue.
Pig fat to be turned into diesel BBC News Online (19/4/07)
Questions
| 1. |
Using diagrams as appropriate, compare and contrast the environmental impact of conventional diesel and the new pig fat bio-diesel. |
| 2. |
Discuss the extent to which the new pig fat diesel will be better for the environment than conventional diesel. |
| 3. |
Evaluate two policies that the government could implement to encourage the use of alternative fuels like the new pig fat bio-diesel. |