One of the key prices in any economy is that of oil. Whenever oil prices change, it can have a knock-on effect on a range of other markets, as oil, or some variation, is used as an input into the production of countless products. The main products that consumers will see affected are energy prices and petrol prices..
Although on the supply-side, we see a large cartel in the form of OPEC, it is still the case that the forces of demand and supply directly affect the market price. Key things such as the demand for heating, economic growth, fears of war and disruption will change the demand and supply of oil. The possibility of militant strikes in oil producers, such as Syria, would normally reduce supply and push up the market price. However, we have actually seen oil prices drop much faster than we have in two years, dropping below $100 per barrel since September 5th. The slowdown of economic growth in Asia, together with the return of Libyan production at a level greater than expected have helped to push prices down and have offset the fears of global production.
The market forces pushing prices down, while good for consumers and firms that use crude oil or one of its by-products, are clearly bad for oil producers. (Click here for a PowerPoint of the chart.) Countries are urging OPEC to halt its production and thereby shift supply upwards to the left putting a stop to the downward oil price trend. Several countries are concerned about the impact of lower prices, and one country that may be significantly affected is Russia. Some are suggesting that the impact could be as big as 4% of Russia’s GDP, taking into account the ongoing political crisis with Ukraine.
The market for oil is highly susceptible to changes in both demand and supply-side factors. Microeconomic changes will have an impact, but at the same time any global macroeconomic factors can have significant effects on the global price. Expectations are crucial and as countries release information about the size of the oil stocks and inventories, it is adding to the downward pressure on prices. Some oil experts have predicted that prices could get as low as $80 per barrel before OPEC takes significant action, influenced heavily by countries like Saudi Arabia. The following articles consider this global market.
Articles
Iran urges OPEC to halt oil price slide Financial Times, Anjli Raval (26/9/14)
Oil overflow: as prices slump, producers grapple with a new reality The Globe and Mail, Shawn McCarthy and Jeff Lewis (27/9/14)
Weak demand, plentiful supply drive decline in oil prices International Distribution (26/9/14)
Oil prices plunging despite ISIS CNN Money, Paul R La Monica (25/9/14)
Oil prices fall on EIA report of big U.S. crude stocks build Reuters, Robert Gibbons (17/9/14)
Sanctions and weaker oil prices could cost Russia 4% of GDP – official RT (25/9/14)
Data
Spot oil prices Energy Information Administration
Weekly European Brent Spot Price Energy Information Administration (Note: you can also select daily, monthly or annual.)
Annual Statistical Bulletin OPEC
Questions
- What are the key factors on the microeconomic side that affect (a) demand and (b) supply of oil?
- Explain the key macroeconomic factors that are likely to have an impact on global demand and supply of oil.
- Militant action in some key oil producing countries has caused fears of oil disruption. Why is that oil prices don’t reflect these very big concerns?
- Use a demand and supply diagram to explain the answer you gave to question 3.
- What type of intervention could OPEC take to stabilise oil prices?
- Why is the Russian economy likely to be adversely affected by the trend in oil prices?
- Changes in the global macroeconomy will directly affect oil prices. Is there a way that changes in oil prices can also affect the state of the global economy?
The British love to talk about house prices. Stories about the latest patterns in prices regularly adorn the front pages of newspapers. We take this opportunity to update an earlier blog looking not only at house prices in the UK, but in other countries too (see the (not so) cool British housing market). This follows the latest data release from the ONS which shows the UK’s annual house price inflation rate ticking up from 10.2 per cent in June to 11.7 per cent in July and which contrasts markedly with the annual rate in July 2013 of 3.3 per cent.
The July annual house price inflation figure of 11.7 per cent for the UK is heavily influenced by the rates in London and the South East. In London house price inflation is running at 19.1 per cent while in the South East it is 12.2 per cent. Across the rest of the UK the average rate is 7.9 per cent, though this has to be seen in the context of the July 2013 rate of 0.8 per cent.
Chart 1 shows house price inflation rates across the home nations since the financial crisis of the late 2000s. It shows a rebound in house price inflation over the second half of 2013 and across 2014. In July 2014 house price inflation was running at 12.0 per cent in England, 7.6 per cent in Scotland, 7.4 per cent in Wales and 4.5 per cent in Northern Ireland. If we use the East Midlands as a more accurate barometer of England, annual house price inflation in July was 7.6 per cent – the same as across Scotland. (Click here for a PowerPoint of the chart.)
Consider a more historical perspective. The average annual rate of growth since 1970 is 9.7 per cent in the UK, 9.7 per cent in England (9.6 per cent in the East Midlands), 9.6 per cent in Wales, 8.8 per cent in Scotland and 8.7 per cent in Northern Ireland. Therefore, house prices in the home nations have typically grown by 9 to 10 per cent per annum. But, as recent experience shows, this has been accompanied by considerable volatility. An interest question is the extent to which these two characteristics of British house prices are unique to Britain. To address this question, let’s go international.
Chart 2 shows annual house price inflation rates for the UK and six other countries since 1996. Interestingly, it shows that house price volatility is a common feature of housing markets. It is not a uniquely British thing. It too shows shows something of a recovery in global house prices. However, the rebound in the UK and the USA does appear particularly strong compared with core eurozone economies, like the Netherlands and France, where the recovery is considerably more subdued. (Click here for a PowerPoint of the chart.)
The chart captures very nicely the effect of the financial crisis and subsequent economic downturn on global house prices. Ireland saw annual rates of house price deflation exceed 24 per cent in 2009 compared with rates of deflation of 12 per cent in the UK. Denmark too suffered significant house price deflation with prices falling at an annual rate of 15 per cent in 2009.
House price volatility appears to be an inherent characteristic of housing markets worldwide. Consider now the extent to which house prices rise over the longer term. In doing so, we analyse real house price growth after having stripped out the effect of consumer price inflation. Real house price growth measures the growth of house prices relative to consumer prices.
Chart 3 shows real house prices since 1995 Q1. (Click here for a PowerPoint of the chart.) It shows that up to 2014 Q2, real house prices in the UK have risen by a factor of 2.4 This is a little less than in Sweden where prices are 2.6 times higher. Nonetheless, the increase in real house prices in the UK and Sweden is significantly higher than in the other countries in the sample. In particular, in the USA real house prices in 2014 Q2 were only 1.2 times higher than in 1995 Q1. Therefore, in America actual house prices, when viewed over the past 19 years or so, have grown only a little more quickly than consumer prices.
The latest data on house prices suggest that house price volatility is not unique to the UK. The house price roller coaster is an international phenomenon. However, the rate of growth in UK house prices over the longer term, relative to consumer prices, is markedly quicker than in many other countries. It is this which helps to explain the amount of attention paid to the UK housing market. The ride continues.
Data
House Price Indices: Data Tables Office for National Statistics
Articles
Property prices in all regions of the UK grow at the fastest annual pace seen in seven years Independent, Gideon Spanier (16/9/14)
UK House Prices Have Not Soared This Fast In Seven Years The Huffington Post UK, Asa Bennett (16/9/14)
UK house prices hit new record as London average breaks £500,000 Guardian, Phillip Inman (6/12/14)
Six regions hit new house price peak, says ONS BBC News, (16/9/14)
Welsh house prices nearing pre-crisis peak BBC News, (16/9/14)
Questions
- What is meant by the annual rate of house price inflation? What about the annual rate of house price deflation?
- What factors are likely to affect housing demand?
- What factors are likely to affect housing supply?
- Explain the difference between nominal and real house prices. What does a real increase in house prices mean?
- How might we explain the recent differences between house price inflation rates in London and the South East relative to the rest of the UK?
- What might explain the very different long-term growth rates in real house prices in the USA and the UK?
- Why were house prices so affected by the financial crisis?
- What factors help explain the volatility in house prices?
- How might we go about measuring the affordability of housing?
- In what ways might house price patterns impact on the macroeconomy?
Commodity prices have been falling for the past three years and have reached a four-year low. Since early 2011, the IMF overall commodity price index (based on 2005 prices) has fallen by 16.5%: from 210.1 in April 2011 to 175.4 in August 2014. The last time it was this low was December 2010.
Some commodity prices have fallen by greater percentages, and in other cases the fall has been only slight. But in the past few months the falls have been more pronounced across most commodities. The chart below illustrates these falls in the case of three commodity groups: (a) food and beverages, (b) agricultural raw materials and (c) metals, ores and minerals. (Click here for a PowerPoint of the chart.)
Commodity prices are determined by demand and supply, and factors on both the demand and supply sides have contributed to the falls.

With growth slowing in China and with zero growth in the eurozone, demand for commodities has shown little growth and in some cases has fallen as stockpiles have been reduced.
On the supply side, investment in mining has boosted the supply of minerals and good harvests in various parts of the world have boosted the supply of many agricultural commodities.
But in historical terms, prices are still relatively high. There was a huge surge in commodity prices in the period up to the financial crisis of 2008 and then another surge as the world economy began to recover from 2009–11. Nevertheless, taking a longer-term perspective still, commodity prices have risen in real terms since the 1960s, but with considerable fluctuations around this trend, reflecting demand and supply at the time.
Articles
Commodities Fall to 5-Year Low With Plenty of Supplies Bloomberg Businessweek, Chanyaporn Chanjaroen (11/9/14)
Commodity ETFs at Multi-Year Lows on Supply Glut ETF Trends, Tom Lydon (11/9/14)
What dropping commodity prices mean CNBC, Art Cashin (11/9/14)
Goldman sees demand hitting commodity price DMM FX (12/9/14)
Commodity price slump is a matter of perspective Sydney Morning Herald, Stephen Cauchi (11/9/14)
Commodities index tumbles to five-year low Financial Times, Neil Hume (12/9/14)
Commodities: More super, less cycle HSBC Global Research, Paul Bloxham (8/1/13)
Commodity prices in the (very) long run The Economist (12/3/13)
Data
IMF Primary Commodity Prices IMF
UNCTADstat UNCTAD (Select: Commodities > Commodity price long-term trends)
Commodity prices Index Mundi
Questions
- Identify specific demand-and supply-side factors that have affected prices of (a) grains; (b) meat; (c) metal prices; (d) oil.
- Why is the demand for commodities likely to be relatively inelastic with respect to price, at least in the short term? What are the implications of this for price responses to changes in supply?
- Why may there currently be a ‘buying opportunity’ for potential commodity purchasers?
- What is meant by the ‘futures market’ and future prices? Why may the 6-month future price quoted today not necessarily be the same as the spot price (i.e. the actual price for immediate trading) in 6 months’ time?
- How does speculation affect commodity prices?
- How does a strong US dollar affect commodity prices (which are expressed in dollars)?
- How may changes in stockpiles give an indication of likely changes in commodity prices over the coming months?
- Distinguish between real and nominal commodity prices. Which have risen more and why?
- How do real commodity prices today compare with those in previous decades?
House prices have been rising strongly in London. According to the Halifax House Price index, house prices in London in the first quarter of 2014 were 15.5% higher than a year ago. This compares with 8.7% for the UK as a whole, 1.3% for the North of England and –1.5% for Scotland. CPI inflation was just 1.6% for the same 12-month period.
The London housing market has been stoked by rising incomes in the capital, by speculation that house prices will rise further and by easy access to mortgages, fuelled by the government’s Help to Buy scheme, which allows people to put down a deposit of as little as 5%. House prices in London in the first quarter of 2014 were 5.3 times the average income of new mortgage holders, up from 3.5 times in the last quarter of 2007, just before the financial crisis.
Concerns have been growing about increasing levels of indebtedness, which could leave people in severe financial difficulties if interest rates were to rise significantly. There are also concerns that an increasing proportion of people are being priced out of the housing market and are being forced to remain in the rental sector, where rents are also rising strongly.
But how can the housing market in London be dampened without dampening the housing market in other parts of the country where prices are barely rising, and without putting a break on the still relatively fragile recovery in the economy generally?

The Governor of the Bank of England has just announced two new measures specific to the housing market and which would apply particularly in London.
The first is to require banks to impose stricter affordability tests to new borrowers. Customers should be able demonstrate their ability to continue making their mortgage payments if interest rates were 3 percentage points higher than now.
The second is that mortgage lenders should restrict their lending to 4½ times people’s income for at least 85% of their lending.
Critics are claiming that these measures are likely to be insufficient. Indeed, Vince Cable, the Business Secretary, has argued for a limit of 3½ times people’s income. Also banks are already typically applying a ‘stress test’ that requires people to be able to afford mortgage payments if interest rates rose to 7% (not dissimilar to the Bank of England’s new affordability test).
The videos and articles look at the measures and consider their adequacy in dealing with what is becoming for many living in London a serious problem of being able to afford a place to live. They also look at other measures that could have been taken.
Webcasts and Podcasts
The Bank of England announces plans for a new affordability test BBC News (26/6/14)
Bank of England moves to avert housing boom BBC News, Simon Jack (26/6/14)
Bank of England to act on house prices in south-east BBC News, Robert Peston (25/6/14)
Bank of England measures ‘insure against housing boom’ BBC News, Robert Peston (26/6/14)
Carney: There is a ‘new normal’ for interest rates BBC Today Programme, Mark Carney (27/6/14)
Articles
Bank of England imposes first limits on size of UK mortgages Reuters, Ana Nicolaci da Costa and Huw Jones (26/6/14)
Stability Report – Mark Carney caps mortgages to cool housing market: as it happened June 26, 2014 The Telegraph, Martin Strydom (26/6/14)
Bank of England cracks down on mortgages The Telegraph, Szu Ping Chan (26/6/14)
Mortgage cap ‘insures against housing boom’ BBC News (26/6/14)
Viewpoints: Is the UK housing market broken? BBC News (26/6/14)
How can UK regulators cool house prices? Reuters (25/6/14)
Bank will not act on house prices yet, says Carney The Guardian, Jill Treanor and Larry Elliott (26/6/14)
Mark Carney’s housing pill needs time to let economy digest it The Guardian, Larry Elliott (26/6/14)
Bank Of England Admits Plans To Cool Housing Market Will Have ‘Minimal’ Impact Huffington Post, Asa Bennett (26/6/14)
Carney Surprises Are Confounding Markets as U.K. Central Bank Manages Guidance Bloomberg, Scott Hamilton and Emma Charlton (26/6/14)
House prices: stop meddling, Mark Carney, and bite the bullet on interest rates The Telegraph, Jeremy Warner (27/6/14)
Mark Carney’s Central Bank Mission Creep Bloomberg, Mark Gilbert (26/6/14)
Consultation paper
Implementing the Financial Policy Committee’s Recommendation on loan to income ratios in mortgage lending Bank of England (26/6/14)
Bank of England consults on implementation of loan-to-income ratio limit for mortgage lending Bank of England News Release (26/6/14)
Data
Links to sites with data on UK house prices Economic Data freely available online, The Economics Network
Questions
- Identify the main factors on the demand and supply sides that could cause a rise in the price of houses. How does the price elasticity of demand and supply affect the magnitude of the rise?
- What other measures could have been taken by the Bank of England? What effect would they have had on the economy generally?
- What suggests that the Bank of England is not worried about the current situation but rather is taking the measures as insurance against greater-than-anticipated house price inflation in the future?
- Why are UK households currently in a ‘vulnerable position’?
- What factors are likely to determine the future trend of house prices in London?
- Is house price inflation in London likely to stay significantly above that in other parts of the UK, or is the difference likely to narrow or even disappear?
- Should the Bank of England be given the benefit of the doubt in being rather cautious in its approach to dampening the London housing market?
There have been two significant changes in prices for travel in Bristol. At the end of April, the toll on Brunel’s iconic Clifton Suspension Bridge doubled from 50p to £1 for a single crossing by car. The bridge over the Avon Gorge links North Somerset with the Clifton area of Bristol and is a major access route to the north west of the city. Avoiding the bridge could add around 2 miles or 8 minutes to a journey from North Somerset to Clifton.
The justification given by the Clifton Suspension Bridge Trust for the increase was that extra revenue was needed for maintenance and repair. As Trust Chairman Chris Booy said, ‘The higher toll will enable the Trust to continue its £9 million 10-year vital repair and maintenance programme which aims to secure the bridge’s long-term future as a key traffic route, one of Bristol’s major tourist destinations and the icon of the city’.
The other price change has been downwards. In November 2013, the First Group cut bus fares in Bristol and surrounding areas. Single fares for up to three miles were cut from £2.90 to £1.50; 30% discounts were introduced for those aged 16 to 21; half-price tickets were introduced for children from 5 to 15; and the two fare zones for £4 and £6 day tickets were substantially increased in size.
First hoped that the anticipated increase in passengers would lead to an increase in revenue. Evidence so far is that passenger numbers have increased, with journeys rising by some 15%. Part of this is due to other factors, such as extra bus services, new buses, free wifi and refurbished bus stops with larger shelters and seats. But the company attributes a 9% rise in passengers to the fare
reductions. As far as revenue is concerned, indications from the company are that, after an initial fall, revenue has risen back to levels earned before the fare reduction.
What are the longer-term implications for revenue and profit of these two decisions? This depends on the price elasticity of demand and on changes in costs. Read the articles and then consider the implications by having a go at answering the questions.
Clifton Suspension Bridge toll to rise from 50p to £1 BBC News (9/4/14)
Regular Users of Clifton Suspension Bridge will be Protected from the Increase in the Bridge Toll Clifton Suspension Bridge (9/4/14)
Clifton Suspension Bridge Review Decision Letter Department of Transport (24/3/14)
Clifton Suspension Bridge Trust: bridge toll review inspector’s report Department of Transport (8/4/14)
Clifton Suspension Bridge Toll Increase – Account of the May 2013 Public Inquiry The National Alliance Against Tolls (NAAT)
First Bus Bristol fare cuts sees passenger growth BBC News (6/6/14)
First gamble over cheaper bus fares pays off as passengers increase in Bristol The Bristol Post (6/6/14)
Bristol bus fares deal to extend to South Gloucestershire and North Somerset The Bristol Post, Gavin Thompson (12/6/14)
Questions
- What assumptions is the Clifton Suspension Bridge Trust making about the price elasticity of demand for bridge crossings?
- What determines the price elasticity for bridge crossings in general? Why is this likely to differ from one bridge to another?
- How is the long-term price elasticity of demand likely to differ from the short-term elasticity for Clifton Suspension Bridge crossings and what implications will this have for revenues, costs and profit?
- How is the price elasticity of demand for the bridge likely to vary from one user to another?
- How is offering substantial price reductions for multiple-crossing cards likely to affect revenue?
- What determines the price elasticity of demand for bus travel?
- What could a local council do to encourage people to use buses?
- How is the long-term price elasticity of demand for bus travel likely to differ from the short-term elasticity?
- In the long run, is First likely to see profits increase from its fare reduction policy? Explain what will determine this likelihood.