Oil prices are determined by demand and supply. Changes in oil prices are the result of shifts in demand and/or supply, with the size of the price change depending on the size of the shift and the price elasticity of demand and supply.
Some of the shifts are long term, with the price of oil varying from year to year or even moving in a particular direction for longer periods of time. Thus the opening up of new supplies, such as from fracking wells, can lead to a long-term fall in oil prices, while agreements by, say, OPEC to curb output can lead to a long-term rise in prices (see the blogs The oil see-saw, OPEC deal pushes up oil prices and An oil glut).
Medium and long-term price movements can also reflect medium and long-term changes in demand, such as a recession – oil prices fell dramatically as the world economy slid into recession in 2008/9 and then recovered as the global economy recovered.
Another long-term factor is the development of substitutes, such as renewable energy, which can reduce the demand for oil; another is developments that economise on power, such as more fuel-efficient vehicles and machines.
But oil prices do not just reflect these long-term movements in demand and supply. They also reflect daily and weekly movements as demand and supply respond to global and national events.
Two such events occurred at the end of August/beginning of September this year. The first was Hurricane Harvey. Even though it was downgraded to a tropical storm as it made landfall across the coast of the Gulf of Mexico, it dumped massive amounts of rain on southern Texas and Louisiana. This disrupted oil drilling and refining, shutting down a quarter of the entire US refining capacity. 
The initial effect was a surge in US oil prices in late August as oil production in much of Texas shut down and a rise in petrol prices as supplies from refineries fell.
Then prices fell back again in early September as production and refining resumed and as it became apparent that there had been less damage to oil infrastructure than initially feared. Also the USA tapped into some of its strategic oil reserves to make up for the shortfall in supply.
Then in early September, the North Koreans tested a hydrogen bomb – much larger than the previous atom bombs it had tested. This prompted fears of US retaliation and heightened tensions in the region. As the Reuters article states:
That put downward pressure on crude as traders moved money out of oil – seen as high-risk markets – into gold futures, traditionally viewed as a safe haven for investors. Spot gold prices rose for a third day, gaining 0.9 per cent on Monday
Quite large daily movements in oil prices are not uncommon as traders respond to such events. A major determinant of short-term demand is expectations, and nervousness about events can put substantial downward pressure on oil prices if it is felt that there could be a downward effect on the global economy – or substantial upward pressure if it is felt that supplies might be disrupted. Often markets over-correct, with prices moving back again as the situation becomes clearer and as nervousness subsides.
Articles
U.S. crude edges higher, gasoline tumbles after Harvey Reuters, Libby George (4/9/17)
Global oil prices fall after North Korea nuclear weapon test Independent, Henning Gloystein (4/9/17)
Brent crude oil falls after North Korea nuclear test The Indian Express (4/9/17)
Oil prices remain volatile AzerNews, Sara Israfilbayova (4/7/17)
Questions
- What are the determinants of the price elasticity of demand for oil?
- Search news articles to find some other examples of short-term movements in oil prices as markets responded to some political or natural event.
- Why do markets often over-correct?
- Explain the long-term oil price movements over the past 10 years.
- Why is gold seen as a ‘safe haven’?
- If refineries buy oil from oil producers, what would determine the net effect on oil prices of a decline in oil production and a decline in demand for oil by the refineries?
- What role does speculation play in determining oil prices? Explain how such speculation could (a) reduce price volatility; (b) increase price volatility. Under what circumstances is (b) more likely than (a)?
According to the Halifax house price index, house prices fell in the UK in the three months to April. This is the first quarterly fall since 2012. The Nationwide index (see below), shows that prices in April were 0.4% lower than in March (although the 3-month rate was still slightly positive).
The fall in house prices reflects a cooling in demand. This, in turn, reflects a squeeze on household incomes as price rises begin to overtake wage rises. It also reflects buyers becoming more cautious given the uncertainty over the nature of the Brexit deal and its effects on the economy and people’s incomes.
The fall in demand is also driven by recent Bank of England rules which require mortgage lenders to limit the proportion of mortgages with a mortgage/income ratio of 4.5 or above to no more than 15% of their new mortgages. It is also affected by a rise in stamp duty, especially on buy-to-let properties.
Despite the fall in prices, this may understate the fall in demand relative to supply. House price movements often lag behind changes in demand and supply as people are reluctant to adjust to equilibrium prices. In the case of a falling market, sellers may be unwilling to sell at the lower equilibrium price, believing that a lower price ‘undervalues’ their property. Indeed, they may not even put their houses on the market. This makes prices ‘sticky’ downwards. The result is a fall in sales.
Eventually, such people will reluctantly be prepared to accept a lower price and prices will thus fall more. Once people come to expect price falls, supply may increase further as vendors seek to sell before the price falls even more. So we could well see further falls over the coming months.
Lower house prices and falling sales is a picture repeated in many parts of the UK. It is particularly marked in central London. There, estate agents have begun to offer free gifts to purchasers. As The Guardian puts it:
London estate agents have begun to offer free cars worth £18,000, stamp duty subsidies of £150,000, plus free iPads and Sonos sound systems to kickstart sales in the capital’s increasingly moribund property market. The once super-hot central London market has turned into a ‘burnt-out core’ according to buying agents Garrington Property Finders, prompting developers to offer ever greater incentives to lure buyers.
… Land Registry figures show that in the heart of the city’s financial district, average property prices plummeted from £861,000 at the time of the EU referendum to £773,000 in February, a decline of 15%, although in London’s outer boroughs prices are still up over the year.
But lower property prices are good news for first-time buyers, although some of the biggest falls have been in the top end of the market.
The fall in property prices may continue for a few months. But population is rising, and with it the number of people who would like to buy their own home. Once real incomes begin to rise again, therefore, demand is likely to resume rising faster than supply. When it does, house prices will continue their upward trend.
Articles
UK house prices in first quarterly fall since 2012 BBC News (8/5/17)
UK house prices fall again in April as buyers feel the pinch The Guardian, Angela Monaghan (28/4/17)
Buy a home, get a car free: offers galore as London estate agents struggle to sell The Guardian, Patrick Collinson (3/5/17)
London is now one of the five cities with the lowest house price growth in the UK City A.M., Helen Cahill (28/4/17)
London Housing Market Property Bubble Vulnerable To Crash The Market Oracle, Jan Skoyles (3/5/17)
A key indicator of a healthy housing market is flashing red in London Business Insider, Thomas Colson (29/5/17)
House Price Data
UK House Prices – links to various sites Economic Data freely available online – Economics Network
Questions
- Why are UK house prices falling?
- What determines the rate at which they are falling? How is the price elasticity of demand and/or supply relevant here?
- How does speculation help to explain changes in house prices? How may speculation help to (a) stabilise and (b) destabilise house prices?
- Draw a demand and supply diagram to show how house transactions will be lower if the market is not in equailibrium.
- Why are house prices falling faster in central London than elsewhere in the UK?
- Why are rents falling in central London? How does this relate to the fall in central London property prices?
- How has the Help to Buy scheme affected house prices? Has it affected both demand and supply and, if so, why and how?
- How do changes in residential property transaction volumes relate to changes in property prices?
- What market imperfections exist in the housing market?
The latest figures from the ONS show that UK inflation rose to 2.3% for the 12 months to February 2017 – up from 1.9% for the 12 months to January. The rate is the highest since September 2013 and has steadily increased since late 2015.
The main price index used to measure inflation is now CPIH, as opposed to CPI. CPIH is the consumer prices index (CPI) adjusted for housing costs and is thus a more realsitic measure of the cost pressures facing households. As the ONS states:
CPIH extends the consumer prices index (CPI) to include a measure of the costs associated with owning, maintaining and living in one’s own home, known as owner occupiers’ housing costs (OOH), along with Council Tax. Both of these are significant expenses for many households and are not included in the CPI.
But why has inflation risen so significantly? There are a number of reasons.
The first is a rise in transport costs (contributing 0.15 percentage points to the overall inflation rate increase of 0.4 percentage points). Fuel prices rose especially rapidly, reflecting both the rise in the dollar price of oil and the depreciation of the pound. In February 2016 the oil price was $32.18; in February 2017 it was $54.87 – a rise of 70.5%. In February 2016 the exchange rate was £1 = $1.43; in February 2017 it was £1 = $1.25 – a depreciation of 12.6%.
The second biggest contributor to the rise in inflation was recreation and culture (contributing 0.08 percentage points). A wide range of items in this sector, including both goods and services, rose in price. ‘Notably, the price of personal computers (including laptops and tablets) increased by 2.3% between January 2017 and February 2017.’ Again, a large contributing factor has been the fall in the value of the pound. Apple, for example, raised its UK app store prices by a quarter in January, having raised prices for iPhones, iPads and Mac computers significantly last autumn. Microsoft has raised its prices by more than 20% this year for software services such as Office and Azure. Dell, HP and Tesla have also significantly raised their prices.
The third biggest was food and non-alcoholic beverages (contributing 0.06 percentage points). ‘Food prices, overall, rose by 0.8% between January 2017 and February 2017, compared with a smaller rise of 0.1% a year earlier.’ Part of the reason has been the fall in the pound, but part has been poor harvests in southern Europe putting up euro prices. This is the first time that overall food prices have risen for more than two-and-a-half years.
It is expected that inflation will continue to rise over the coming months as the effect of the weaker pound and higher raw material and food prices filter though. The current set of pressures could see inflation peaking at around 3%. If there is a futher fall in the pound or further international price increases, inflation could be pushed higher still – well above the Bank of England’s 2% target. (Click here for a PowerPoint of the chart.)
The higher inflation means that firms are facing a squeeze on their profits from two directions.
First, wage rises have been slowing and are now on a level with consumer price rises. It is likely that wage rises will soon drop below price rises, meaning that real wages will fall, putting downward pressure on spending and squeezing firms’ revenue.
Second, input prices are rising faster than consumer prices. In the 12 months to February 2017, input prices (materials and fuels) rose by 19.1%, putting a squeeze on producers. Producer prices (‘factory gate prices’), by contrast, rose by 3.7%. Even though input prices are only part of the costs of production, the much smaller rise of 3.7% reflects the fact that producer’s margins have been squeezed. Retailers too are facing upward pressure on costs from this 3.7% rise in the prices of products they buy from producers.
One of the worries about the squeeze on real wages and the squeeze on profits is that this could dampen investment and slow both actual and potential growth.
So will the Bank of England respond by raising interest rates? The answer is probably no – at least not for a few months. The reason is that the higher inflation is not the result of excess demand and the economy ‘overheating’. In other words, the higher inflation is not from demand-pull pressures. Instead, it is from higher costs, which are in themselves likely to dampen demand and contribute to a slowdown. Raising interest rates would cause the economy to slow further.
Videos
UK inflation shoots above two percent, adding to Bank of England conundrum Reuters, William Schomberg, David Milliken and Richard Hunter (21/3/17)
Bank target exceeded as inflation rate rises to 2.3% ITV News, Chris Choi (21/3/17)
Steep rise in inflation Channel 4 News, Siobhan Kennedy (21/3/17)
U.K. Inflation Gains More Than Forecast, Breaching BOE Goal Bloomberg, Dan Hanson and Fergal O’Brien (21/3/17)
Articles
Inflation leaps in February raising prospect of interest rate rise The Telegraph, Julia Bradshaw (21/3/17)
Brexit latest: Inflation jumps to 2.3 per cent in February Independent, Ben Chu (21/3/17)
UK inflation rate leaps to 2.3% BBC News (21/3/17)
UK inflation: does it matter for your income, debts and savings? Financial Times, Chris Giles (21/3/17)
Rising food and fuel prices hoist UK inflation rate to 2.3% The Guardian, Katie Allen (21/3/17)
Reality Check: What’s this new measure of inflation? BBC News (21/3/17)
Data
UK consumer price inflation: Feb 2017 ONS Statistical Bulletin (21/3/17)
UK producer price inflation: Feb 2017 ONS Statistical Bulletin (21/3/17)
Inflation and price indices ONS datasets
Consumer Price Inflation time series dataset ONS datasets
Producer Price Index time series dataset ONS datasets
European Brent Spot Price US Energy Information Administration
Statistical Interactive Database – interest & exchange rates data Bank of England
Questions
- If pries rise by 10% and then stay at the higher level, what will happen to inflation (a) over the next 12 months; (b) in 13 months’ time?
- Distinguish between demand-pull and cost-push inflation. Why are they associated with different effects on output?
- If producers face rising costs, what determines their ability to pass them on to retailers?
- Why is the rate of real-wage increase falling, and why may it beome negative over the coming months?
- What categories of people are likely to lose the most from inflation?
- What is the Bank of England’s remit in terms of setting interest rates?
- What is likely to affect the sterling exchange rate over the coming months?
Household borrowing on credit cards and through overdrafts and loans has been growing rapidly. This ‘unsecured’ borrowing is now rising at rates not seen since well before the credit crunch of 2008 (click here for a PowerPoint of the chart below). Should this be a cause for concern?
Household confidence is generally high and, as a result, people continue to take out more loans and so household debt continues to increase. Saving rates are falling and, at 5.1% of household disposable income, are the lowest rate since 2008, mirroring the high levels of spending and borrowing.
But as long as the economy keeps growing and as long as interest rates stay at record low levels, people should be able to continue servicing this rising debt. Indeed, with generous balance transfer offers between credit cards and many people paying off their full balance each month, only 56.6% are paying any interest at all on credit card debt, the lowest level on record.
But there could be trouble ahead! Secured borrowing (i.e. on mortgages) is at record highs as house prices have soared, limiting the amount people have to left to spend, even with ultra low interest rates. Student debt is growing, putting a brake on graduate spending.
With economic growth set to slow and inflation set to rise as the effects of the lower pound filter through into retail prices, this could initially boost borrowing further as people seek to maintain levels of consumption. But then, if unemployment starts to rise and consumer confidence starts to fall, real spending could decline, putting further downward pressure on the economy.
Confidence could then fall further and we could witness a repeat of 2008–9, when people became worried about their levels of borrowing and cut back on consumption in an attempt to claw down their debt. The economy was pushed into recession.
The Bank of England is well aware of this scenario and wants banks to ensure that their customers can afford loans before offering them.
Articles
Bank governor Mark Carney warns on household debt BBC News, Brian Milligan (30/11/16)
Credit crunch: Household debt is rising just as the economy’s future is uncertain The Telegraph, Tim Wallace (10/12/16)
Bank of England publication
Financial Stability Report, November 2016 Bank of England (30/11/16)
Data
Money and lending Bank of England Interactive Database
United Kingdom Households Debt To GDP Trading Economics
Household debt OECD Data
Questions
- What determines the amount people borrow?
- What would cause people to cut back on the amount of debt they have?
- Distinguish between secured and unsecured borrowing and debt.
- Why has secured borrowing risen? Does this matter?
- What is meant by the term ‘re-leveraging’? What is its significance in terms of household borrowing?
- Find out what the affordability tests are for anyone wanting to take out a mortgage.
- What are the greatest risks to UK financial stability?
OPEC members agreed on 30 November 2016 to reduce their total oil output by 1.2m barrels per day (b/d) from January 2017 – the first OPEC cut since 2008. The biggest cut (0.49m b/d) is to be made by Saudi Arabia.
Russia has indicated that it too might cut output – by 0.3m b/d. If it carries through with this, it will be the first deal for 15 years to include Russia. OPEC members hope that non-OPEC countries will also cut output by 0.3m b/d. There will be a meeting between OPEC and non-OPEC members on 9 December in Doha to hammer out a deal. If all this goes ahead, the total cut would represent nearly 2% of world output.
The OPEC agreement took many commentators by surprise, who had expected that Iran’s unwillingness to cut its output would prevent any deal being reached. As it turned out, Iran agreed to freeze its output at current levels.
Although some doubted that the overall deal would stick, there was general confidence that it would do so. Markets responded with a huge surge in oil prices. The price of Brent crude rose from $46.48 per barrel on 29 November to $54.25 on 2 December, a rise of nearly 17% (click here for a PowerPoint of the chart)..
The deal represented a U-turn by Saudi Arabia, which had previously pursued the policy of not cutting output, so as to keep oil prices down and drive many shale oil producers out of business (see the blog, Will there be an oil price rebound?)
But if oil prices persist above $54 for some time, many shale oil fields in the USA will become profitable again and some offshore oil fields too. At prices above $50, the supply of oil becomes relatively elastic, preventing prices from rising significantly. As The Observer article states:
It is more likely that a $60 cap will emerge as the Americans, who stand outside the 13-member OPEC grouping, unplug the spigots that have kept their shale oil fields from producing in the last year or two.
… The return to action of once-idle derricks on the Texas and Dakota plains is the result of efficiency savings that have seen large jobs losses and a more streamlined approach to drilling from the US industry, after the post-2014 price tumble rendered many operators unprofitable. Only a few years ago, many firms struggled to make a profit at $70 a barrel. Now they can be competitive at much lower prices, with many expecting $50 for West Texas Intermediate – a lighter crude that typically earns $5 a barrel less than Brent.
OPEC as a cartel is much weaker than it used to be. It produces only around 40% of global oil output. Cheating from its members and increased production from non-OPEC countries, let alone huge oil stocks after two years when production has massively exceeded consumption, are likely to combine to keep prices below $60 for the foreseeable future.
Webcasts
OPEC Cuts Daily Production by 1.2 Million Barrels MarketWatch, Sarah Kent (30/11/16)
How Putin, Khamenei and Saudi prince got OPEC deal done Reuters, Rania El Gamal, Parisa Hafezi and Dmitry Zhdannikov (2/12/16)
Fuel price fears as OPEC agrees to cut supply Sky News, Colin Smith (30/11/16)
OPEC Confounds Skeptics, Agrees to First Oil Cuts in 8 Years Bloomberg, Jamie Webster (30/11/16)
Game of oil: Behind the OPEC deal Aljazeera, Giacomo Luciani (3/12/16) (first 10½ minutes)
Russia won’t stick with its side of the OPEC cut bargain CNBC, Silvia Amaro (1/12/16)
Articles
Oil soars, Brent hits 16-month high after OPEC output deal Reuters, Devika Krishna Kumar (1/12/16)
OPEC reaches a deal to cut production The Economist (3/12/16)
Opec doesn’t hold all the cards, even after its oil price agreement The Observer, Phillip Inman (4/12/16)
Saudi Arabia discussed oil output cut with traders ahead of Opec Financial Times, David Sheppard and Anjli Raval (4/12/16)
The return of OPEC Reuters, Jason Bordoff (2/12/16)
‘Unfortunately, We Tend To Cheat,’ Ex-Saudi Oil Chief Says Of OPEC Forbes, Tim Daiss (4/12/16)
After OPEC – What’s Next For Oil Prices? OilPrice.com (2/12/16)
The OPEC Oil Deal Sells Fake News for Real Money Bloomberg, Leonid Bershidsky (1/12/16)
Data and information
Brent crude prices, daily US Energy Information Administration
OPEC home page Organization of the Petroleum Exporting Countries
OPEC 171st Meeting concludes OPEC Press Release (30/11/16)
Questions
- What determines the price elasticity of supply of oil at different prices?
- Why is the long-term demand for oil more elastic than the short-term demand?
- What determines the likelihood that the OPEC agreement will be honoured by its members?
- Is it in Russia’s interests to cut its production as part of the agreement?
- Are higher oil prices ‘good news’ for the global economy and a boost to economic growth – a claim made by Saudi Arabia?
- What role does oil storage play in determining the effect on the oil price of a cut in output?
- What are oil prices likely to be in five years’ time? Explain your reasoning.
- Is it in US producers’ interests to invest in new shale oil production? Explain.
Oil prices are determined by demand and supply. Changes in oil prices are the result of shifts in demand and/or supply, with the size of the price change depending on the size of the shift and the price elasticity of demand and supply. 
The initial effect was a surge in US oil prices in late August as oil production in much of Texas shut down and a rise in petrol prices as supplies from refineries fell.
