Economics studies the choices people make. ‘Rational choice’ involves the weighing up of costs and benefits and trying to maximise the surplus of benefits over costs. This surplus will be maximised when people do more of things where the marginal benefit exceeds the marginal cost and less of things where the marginal cost exceeds the marginal benefit. But, of course, measuring benefits and costs is not always easy. Nevertheless, for much of the time we do make conscious choices where we consider that choosing to do something is ‘worth it’: i.e. that the benefit to us exceeds the cost.
When we make a choice, often this involves expenditure. For example, when we choose to buy an item in a shop, we spend money on the item, and also, perhaps, spend money on transport to get us to the shop. But the full opportunity cost includes not only the money we spend, but also the best alternative activity sacrificed while we are out shopping.
Then there are the benefits. Not all pleasurable activity costs us money. The sight of beautiful contryside or the pleasure of the company of friends may cost us very little, if anything, in money terms. But they may still be very valuable to us.
If we are to make optimal decisions we need to have some estimate of all costs and benefits, not just ones involving the payment or receipt of money. This applies both to individual behaviour and to collective decisions made by governments or other agencies.
Cost–benefit analysis seeks to do this to help decisions about new projects, such as a new road, a new hospital, environmental projects, and so on. But just how do we set about putting a value on the environment – on the pleasure of a walk in bluebell woods, on protecting bird life in wetlands or sustaining ecosystems?
For the first time there has been a major study that attempts to value the environment. According to the introduction to the report:
The UK National Ecosystem Assessment (UK NEA) is the first analysis of the UK’s natural environment in terms of the benefits it provides to society and the nation’s continuing prosperity. Carried out between mid-2009 and mid-2011, the UK NEA has been a wide-ranging, multi-stakeholder, cross-disciplinary process, designed to provide a comprehensive picture of past, present and possible future trends in ecosystem services and their values; it is underpinned by the best available evidence and the most up-to-date conceptual thinking and analytical tools. The UK NEA is innovative in scale, scope and methodology, and has involved more than 500 natural scientists, economists, social scientists and other stakeholders from government, academic and private sector institutions, and non-governmental organisations (NGOs).
The following podcast and webcast look at the report and at some of the issues it raises in terms of quantifying and incorporating environmental costs and benefits into decision taking.
Podcast and Webcast
‘The hidden value’ of our green spaces BBC Today Programme, Tom Feilden (2/6/11)
Report puts monetary value on Britain’s natural assets BBC News, Jeremy Cooke (2/6/11)
Articles
NEA report highlights need for biodiversity Farmers Guardian, Ben Briggs (2/6/11)
Nature is worth £19bn a year to the UK economy – report Energy & Environmental Management Magazine (2/6/11)
In praise of… the unquantifiable Guardian (3/6/11)
Priceless benefits of bluebell woods Guardian letters, Dr Bhaskar Vira and Professor Roy Haines-Young (4/6/11)
Nature ‘is worth billions’ to UK BBC News, Richard Black (2/6/11)
Putting a price on nature BBC News, Tom Feilden (2/6/11)
Value of Britain’s trees and waterways calculated in ‘ground-breaking’ study The Telegraph, Andy Bloxham (2/6/11)
Nature worth billions, says environment audit Financial Times, Clive Cookson (2/6/11)
Nature gives UK free services worth billions Planet Earth, Tom Marshall (3/6/11)
UK scientists put price on nature with National Ecosystem Assessment GreenWise, Ann Elise Taylor (2/6/11)
Report
UK National Ecosystem Assessment: link to report DEFRA
UK National Ecosystem Assessment (June 2011)
The UK National Ecosystem Assessment: Synthesis of the Key Findings
Questions
- How would you set about valuing the benefits of woodlands?
- According to the report, the health benefits of living close to a green space are worth up to £300 per person per year. How much credance sould we attach to such a figure?
- What do you understand by the ‘ecosystem approach’ and the term ‘ecosystem services’?
- Explain Figure 2 on page 3 of Chapter 2 of the report.
- Should decision makers quantify only those benefits of ecosystems experienced by humans? Would all environmentalists agree with this approach?
- What are the advantages and disadvantages of quantifying all costs and benefits in money terms?
- Compare the consequences over the next 50 years of a ‘world markets’ scenarios with that of a ‘nature at work’ scenario.
- What policy implications follow from the report?
While inflation is a concern in the UK and is making the Bank of England think twice about keeping interest rates at their all time low of 0.5%, inflation in Japan is being celebrated. The Japanese economy has been plagued by deflation for over a decade and for the past 2 years inflation has never been above 0%. However, in April the consumer price index (CPI) rose to 0.6% from the previous year, fuelled by petrol prices. Strangely it might be the Japanese earthquake and tsunami that helped this situation, as Japan was unable to generate sufficient electricity and hence had to import fuel from abroad.
A typical question from non-economists is always about why deflation and hence falling prices is such a bad thing. Surely, it’s great for consumers? For those shopping for bargains, perhaps it is helpful – after all, if prices fall, a consumer’s real income will be higher. However, the problem with falling prices is that people start to hold off buying. If you want to buy a car, but expect prices to be lower next month, then it’s a rational decision to delay your purchase until next month when prices are lower. However, next month, you still expect prices to be lower in the following month and so delay purchasing again. And so the process continues. When people expect prices to fall they put off their purchases, this reduces demand and so prices do indeed fall. There are also costs for businesses: as consumers delay buying, sales begin to fall. And businesses are also consumers, and so they start delaying their purchases of inputs.
While many central banks across the world have begun to tighten monetary policy, the Japanese central bank seems inclined to keep monetary policy loose and has even considered expanding the emergency lending programme. As Azusa Kato, an economist at BNP Paribas, said:
“The bank will probably add stimulus if it sees more signs of weakening demand”. “If you strip out energy and food costs, consumer prices are basically flat now.”
Despite this inflationary pressure, many believe that it is unlikely to continue and deflationary pressures may appear once again in the near future. The following articles consider the Japanese deflationary situation.
Articles
Japan ends 25 months of deflation Bloomberg, Mayumi Otsuma (27/5/11)
Japan consumer prices log first rise in 28 months Associated Press (27/5/11)
Japan beats deflation for the first time in two years BBC News (275/11)
Japan overcomes deflation for first time in two years Guardian, Julia Kollewe (27/5/11)
Japanese consumer price rise (including video) BBC News (27/5/11)
Japan April core CPI rises 0.6 pct yr/yr Reuters (26/5/11)
Japan experiences inflation for first time in over two years Telegraph (27/5/11)
Data
Japan Inflation Rate Trading Economics
Consumer Price Index (Japan) Japanese Statistics Bureau
Inflation Rate and Consumer Price Index (CPI) (for USA, Canada, Australia, UK and Japan) Rate Inflation
Statistical Annex, Preliminary Version OECD
Questions
- What are the main costs of deflation? Think about the wider effects on consumers, businesses and the government.
- What has caused the increase in inflation to 0.6% in Japan and why was there an expectation that inflation would re-appear?
- What explanation can be given for the belief that deflation will soon re-emerge?
- Using a demand and supply diagram, explain the process by which consumers delaying their consumption will lead to prices falling continuously.
- What is the best policy for the Japanese central bank to pursue in light of the new data?
The snow the UK has seen over the past two winters created massive disruption, but that is only one reason for hoping for a milder winter to come. With the cold weather, the UK economy faced threats of gas shortages, as households turned on their heating. However, despite the freezing temperatures, many households were forced to turn off their heating regularly, due to the excessive bills they would face. This trend is expected to be even more prevalent if the 2011/12 winter is as cold, as fuel tariffs are predicted to rise. The Bank of England has said that gas and electricity prices could rise this year by 15% and 10% respectively. British Gas’s Parent company, Centrica said:
“In the UK the forward wholesale prices of gas and power for delivery in winter 2011/12 are currently around 25% higher than prices last winter, with end-user prices yet to reflect this higher wholesale market price environment.”
These predictions might see the average UK household paying an extra £148 over the next year. Although these are only estimates, we are still very likely to see many households being forced to turn off their heating. One thing which therefore is certain: a warmer winter would be much appreciated!
Articles
Switch energy tariff to help beat bill rises Guardian, Miles Brignall (14/5/11)
Quarter of households predicted to turn off heating BBC News, Brian Milligan (14/5/11)
Power bills set to soar by 50% in four years Scotsman (14/5/11)
Domestic fuel bills poised to rise by up to £200 Financial Times, Elaine Moore (13/5/11)
Data
Energy price statistics Department of Energy & Climate Change
Energy statistics publications Department of Energy & Climate Change
Questions
- Which factors have contributed to rising energy prices? Illustrate these changes on a demand and supply diagram.
- To what extent do these higher prices contribute to rising inflation?
- What impact might these price rises have on (a) poverty and (b) real income distribution in the UK?
- Why are energy prices currently being investigated by Ofgem? What powers does the regulator have and what actions could be taken?
In January 2011, Chinese growth accelerated to 9.8% as industrial production and retails sales picked up. As the second largest economy, this very high growth is hardly surprising, but it has caused concern for another key macroeconomic variable: inflation. Figures show that inflation climbed to 5.2% in March from a year before and the billionaire investor George Soros has said it is ‘somewhat out of control’. High property and food prices have contributed to high and rising inflation and this has led to the government implementing tightening measures within the economy.
In March, growth in property prices did finally begin to slow, according to the survey by the National Bureau of Statistics. Prices of new built homes had risen in 49 out of 70 Chinese cities in March from the previous months, but this was down from 56 cities in February. A property tax has also been implemented in cities like Shanghai and the minimum down payment required for second-home buyers has risen in a bid to prevent speculative buying. Bank reserve requirements have also been increased for the fourth time, after an increase in the interest rate at the beginning of April. The required reserve ratio for China’s biggest banks has now risen to 20.5%.
The situation in China is not the only country causing concern. Inflation in emerging markets is a growing concern, especially for the richer nations. The Singaporean finance minister, Tharman Shanmugaratnam, said:
“When inflation goes up in emerging markets, it’s not just an emerging market problem, it’s a global inflation and possibly interest rate problem … We have learned from painful experience in the past few years that nothing is isolated and that risk in one region rapidly gets transmitted to the rest of the world.”
He has said that inflation in emerging markets needs addressing to ensure that it does not begin to threaten the economic recovery of other leading economies. The following articles consider the latest Chinese developments.
New home price growth dips amid government tightening BBC News (18/4/11)
China growth may cool in boost for Wen’s inflation campaign Bloomberg Business (14/4/11)
China steps up inflation fight with bank reserves hike Independent, Nikhil Kumar (18/4/11)
China raises bank reserves again Reuters (17/4/11)
China’s economy ‘is just too hot’ says Peter Hoflich BBC News (18/4/10)
Top G20 economies face scrutiny over imbalances AFP, Paul Handley (16/4/11)
Inflation in China poses big threat to global trade Global Business, David Barboza (17/4/11)
Chinese inflation to slow to 4% by year-end: IMF AFP (17/4/11)
Chinese economic growth slows but inflation soars Guardian, Tania Branigan (15/4/11)
Questions
- What type of inflation is the Chinese economy experiencing? Explain your answer using a diagram.
- To what extent will the minimum payment on second homes and the property tax help reduce the growth in Chinese property prices?
- Why is there concern about high inflation in emerging markets and the impact it might have on other countries?
- How could the inflation in China hurt the economic recovery of countries such as the UK?
- How will the increase in the banks’ reserve requirements help inflation?
- Is high Chinese growth and high inflation the relationship you would expect to occur between these macroeconomic objectives? Explain your answer.
The pensions problems facing many of the developed world are well documented and are largely caused by changing demographics, including rising life expectancy, more people in education, retiring earlier and the ‘baby boomers’ nearing or entering retirement. All of this has contributed to unsustainable pension systems and hence a need for reform. The latest review is by Lord Hutton and looks at public-sector pensions. It makes a number of recommendations about reform. The main thing to come out of the report is that public-sector workers will have to pay larger contributions. work for longer and may receive less in their pension.
Many public-sector pensions have been based on a final salary scheme, which gives workers an extremely generous pension on retirement. The proposal is to change these to career average pensions, which will reduce the generosity for some and hence play a role in reducing the pension deficit. He suggests that public-sector retirement age should be increased in line with the state pension age, which will simultaneously increase the number of workers and hence output, but also reduce the number of years spent in retirement and hence reduce pension payments.
The government will now consider the recommendations laid out in the Hutton Review, but will need to bear in mind potential reactions by the unions, which have already hinted at strike action if the proposals go ahead. As the TUC general secretary, Brendan Barber, said:
‘Public-sector workers are already suffering a wage freeze, job losses and high inflation. They are now desperately worried that they will no longer be able to afford their pension contributions, and will have to opt out.’
With such concern about these proposals, and yet an unarguable case for pension reform, this is certainly an area where we will undoubtedly see significant media coverage.
Articles
Hutton reveals his pension plan – and is blasted by unions Guardian, Polly Curtis (10/3/11)
Pensions anger from unions following Hutton review (including video) BBC News (10/3/11)
High-wire act fails to balance public and private Financial Times, Nicholas Timmins (10/3/11)
A fairer pension deal that is long overdue Telegraph (10/3/11)
Hutton: This changes the basis on which I accepted the job, says teacher Guardian, Jessica Shepherd and Jill Insley (10/3/11)
No winners over public sector pensions if ministers or unions rush to battle Guardian, Polly Toynbee (10/3/11)
Career-average pensions: How do they work? BBC News, Ian Pollock (10/3/11)
Hutton pensions review: Q&A Telegraph, Harry Wallop (10/3/11)
Tackling the intractable The Economist (10/3/11)
Trade unions: pension reforms are unfair and misguided Guardian, James Meikle (10/3/11)
Report
Independent Public Service Pensions Commission: Final Report Pensions Commission, Lord Hutton, HM Treasury, March 2010
Independent Public Service Pensions Commission: Interim Report Pensions Commission, Lord Hutton October 2010
Questions
- Identify the main causes of the pensions problem. Explain how each issue has added to the pensions deficit.
- To what extent is it equitable that public sector workers should pay more in contributions and retire at the same age as the state pension age?
- Who will benefit the most from a change from final-salary to career average schemes?
- How might higher contributions affect the incentive to work? What could we see happen to labour supply? Think about both income and substitution effects.
- What are the union’s main arguments against the proposals? To what extent Is striking likely to solve the problem?