The UK economy faces a growing problem of energy supplies as energy demand continues to rise and as old power stations come to the end of their lives. In fact some 10% of the UK’s electricity generation capacity will be shut down this month.
Energy prices have risen substantially over the past few years and are set to rise further. Partly this is the result of rising global gas prices.
In 2012, the response to soaring gas prices was to cut gas’s share of generation from 39.9% per cent to 27.5%. Coal’s share of generation increased from 29.5% to 39.3%, its highest share since 1996 (see The Department of Energy and Climate Change’s Energy trends section 5: electricity). But with old coal-fired power stations closing down and with the need to produce a greater proportion of energy from renewables, this trend cannot continue.
But new renewable sources, such as wind and solar, take a time to construct. New nuclear takes much longer (see the News Item, Going nuclear). And electricity from these low-carbon sources, after taking construction costs into account, is much more expensive to produce than electricity from coal-fired power stations.
So how will the change in balance between demand and supply affect prices and the security of supply in the coming years. Will we all have to get used to paying much more for electricity? Do we increasingly run the risk of the lights going out? The following video explores these issues.
Webcast
UK may face power shortages as 10% of energy supply is shut down BBC News, Joe Lynam (4/4/13)
Data
Electricity Statistics Department of Energy & Climate Change
Quarterly energy prices Department of Energy & Climate Change
Questions
- What factors have led to a rise in electricity prices over the past few years? Distinguish between demand-side and supply-side factors and illustrate your arguments with a diagram.
- Are there likely to be power cuts in the coming years as a result of demand exceeding supply?
- What determines the price elasticity of demand for electricity?
- What measures can governments adopt to influence the demand for electricity? Will these affect the position and/or slope of the demand curve?
- Why have electricity prices fallen in the USA? Could the UK experience falling electricity prices for similar reasons in a few years’ time?
- In what ways could the government take into account the externalities from power generation and consumption in its policies towards the energy sector?
European wine producers have seen one of the worst grape harvests for decades. With exceptionally wet weather in the northern European growing areas and exceptionally hot and dry weather in the southern ones, yields are well down in most countries.
In France, the world’s largest wine producer, wine production is forecast to be 19% down on the previous year. In Italy and Spain, Europe’s second and third largest producers, production is forecast to be 3% and 6% down respectively. Production in the EU as a whole, which produces some 57% of world output, is expected to be 9% down and at a historically low level. What is more, the past five years in the EU have all seen modest harvests.
And the poor harvests are not confined to Europe. Argentina’s production is some 24% down on 2011, with New Zealand’s 17% down. And despite a few countries expecting an increase, including the USA and Chile, overall world production is expected to be 6% down on 2011 and more than 7% down on the average for 2008–11.
So is this good news or bad? At first sight it would seem to be bad, especially for the countries with large falls in output. It would also seem to be bad news for the consumer, with prices set to rise.
But for some it’s good news. If prices rise, then producers experiencing an increase in output will have a double gain. And a fall in output is only part of the story. For some producers, the smaller yield has been accompanied by an increase in quality. And then there’s the question of stocks. For several years, global production of wine has exceeded consumption. Indeed the gap widened after the financial crisis and recession of 2007–9 as consumption of wine fell. This year’s poor global harvest should help to slow down the increase in stocks or may even lead to a reduction in stocks, depending on the extent to which demand recovers.
Articles
World Wine Output to Fall to 37-Year Low, Depleting Stocks BloombergBusinessweek, Rudy Ruitenberg (30/10/12)
World wine drought after weather ruins harvests The Telegraph, John-Paul Ford Rojas (31/10/12)
Wine Experts: Drought, Cold Bring Worst Harvest in 50 Years Skye (30/10/12)
Wine experts: worst grape harvest in half century Washington Examiner (17/10/12)
Small 2012 harvest sparks supply fears thedrinksbusiness.com, Gabriel Savage (30/10/12)
Wine shortage to follow poor 2012 grape harvest BBC News (31/10/12)
Hot summer cools business prospects for Madrid vintners BBC News, Jaime Gonzales (24/9/12)
World awash in wine, so Europe’s poor grape harvest won’t hit Edmonton goblets just yet Edmonton Journal, Dan Barnes (17/10/12)
Data
Wine in figures Wines from Spain
2012 global economic vitiviniculture data Wines from Spain (Note that the countries in Table 1 have been entered in the wrong order.)
Questions
- Illustrate the effect of the global wine harvest on a demand and supply diagram.
- Will a fall in grape production of x per cent lead to a rise in the price of wine of more or less than x percent? How is the price elasticity of demand relevant to your answer?
- What elements are there in the supply chain from planting vines to consuming wine?
- How does the holding of stocks affect (a) the profitability of wine production; (b) the price volatility of wine?
- The Greek grape harvest is predicted to be higher in 2012 than in 2011. How will this affect the prices of Greek wines in (a) Greece; (b) outside Greece?
- How is the fallacy of composition relevant in assessing the benefits to owners of vineyards of a good grape harvest?
Induced hydraulic fracturing or “fracking”, is a technique used to make fractures in shale beds, normally deep underground, through the injection of liquids under high pressure. The idea is to release oil or gas. Fracking has transformed the oil industry by allowing vast reserves to be tapped.
Although the main ingredient of the fracking liquid is water, it is also necessary to include sand and a gelling agent to increase the viscosity of the liquid and bind in the sand. The commonest gelling agent is guar gum, a gel made from powdered guar seeds, which are grown in the semi-desert regions of India and Pakistan. Guar gum is also widely used in the food industry as a binding, thickening, texturising and moisture control agent.
With the rapid growth in fracking, especially in the USA, the demand for guar gum has rocketed – and so has its price. In just one year the price of guar beans, from which the seeds are extracted, has risen ten fold from about 30 rupees (about 34 pence) to around 300 rupees per kilo. This has transformed the lives of many poor farmers. Across the desert belt of north-west India, fields are being planted with guar.
But will it last? What will the oil and gas extraction companies do in response to the higher price? What will the food industry do? What will happen to the demand and supply of guar gum over the longer term? Is it risky for farmers in India and Pakistan to rely on a single crop, or should they take advantage of the high prices while they last? These types of questions are central to many mono-crop economies.
Webcast
The little green bean in big fracking demand CNN, Mallika Kapur (10/9/12)
Articles
Frackers in frantic search for guar bean substitutes Reuters, Braden Reddall (13/8/12)
After first-half surge, US drillers find respite in guar wars Reuters (20/7/12)
Guar Gum Exports From India to Drop on Halliburton Stocks BloombergBusinessweek, Prabhudatta Mishra (3/9/12)
Frackers Seek Guar Bean Substitutes The Ithaca Independent, Ed Sutherland (13/8/12)
Synthetic Fracking Ingredient to Replace Guar Bean Greener Ideas, Madison E. Rowe (15/8/12)
From emu farms to guar crops: Why the desert is fertile for Ponzi schemes The Economic Times of India, Vikram Doctor (10/9/12)
Guar gum replacer cuts cost by up to 40% Food Manufacture, Lorraine Mullaney (4/9/12)
Less Guar Needed: TIC Gums Introduces Ticaloid Lite Powder TIC Gums (27/8/12)
Immediate Supply of Guar Gum Available in the US PRLog (1/9/12)
Questions
- Why have guar bean, powder and gum prices risen so rapidly? Use a demand and supply diagram to illustrate your answer.
- How is the price elasticity of supply of guar likely to differ between the short term and the long term? What will be the implications of this for guar prices and the livelihood of guar growers?
- How is the price elasticity of demand for guar likely to differ between the short term and the long term? What will be the implications of this for guar prices and the livelihood of guar growers?
- What would you advise guar growers to do and why?
- What is the role of speculation in determining the price of guar?
- What is a ‘ponzi scheme’? Why is the ‘desert so fertile for ponzi schemes’? (Note that the symbol for a rupee is Rs or ₹, that 100,000 rupees are referred to as 1 Lakh and that 100 Lakh are referred to as 1 Crore.)
A bumper olive crop in Spain would seem to be good news for Spanish olive growers. But the effect has been a fall in the prices of olives and olive oil. With 43% of the global supply, Spain is the world’s largest olive oil producer and changes in Spanish output have a big effect on the world price.
Premium extra virgin olive oil has fallen to its lowest level (even in nominal terms) since 2002. Today the price is around $2900 (£1850) a tonne in the wholesale market; in May 2006 it peaked at nearly $5854 – double today’s price.
And while this is bad news for Spanish farmers, for farmers in countries without bumper harvests, the low prices are even harder to bear.
The problem is being exacerbated by a fall in demand in many countries currently suffering recession, such as Greece, Portugal and Italy – all big olive oil consumers. Although olive oil prices have fallen, it is still more expensive than various substitutes. Many people are thus buying these cheaper alternatives, such as sunflower oil, especially for cooking.
What is more, cheaper substitutes for olive oil are increasing in supply. Take the case of rape seed oil in the UK. As the Mail Online article, linked to below, reports:
“UK rape planting is thought to have hit an all-time high this year as British farmers take advantage of the high prices being demanded for rapeseed – base ingredient of many vegetable oils and other edible oils.
Much of the UK crop is used by the local food industry, although some analysts are predicting strong UK yields will give farmers the opportunity to export more to Europe. Because of rising export demand, oil users in the UK claim there is little to indicate the price they are paying for rapeseed oil will drop substantially in the near future.”
The market for olive oil is global. Crop yields in one part of the world, both of olives and of substitute crops, affect global prices and hence growers’ incomes worldwide.
Webcast
Debt hit countries suffer from olive oil price dip Euronews (28/5/12)
News articles
Olive oil price slides as glut hits southern Europe Gulf News, Javier Blas (29/5/12)
Farmers feel squeeze as olive oil price slips The National, Gregor Stuart Hunter (29/5/12)
Olive oil surplus adds to economic pain in Spain The Week (29/5/12)
Olive oil price fall brings further pain for Spain, Italy and Greece The Telegraph (28/5/12)
Pass notes No 3183: Olive oil Guardian (28/5/12)
More Storage Aid for Virgin Olive Oil Olive Oil Times, Julie Butler (17/5/12)
Yellow Britain from the air: Rapeseed’s relentless march across the country pictured in vivid colour as farmers cash in after price of crop’s oil soars Mail Online, Sean Poulter (29/5/12)
Data
Commodity Prices Index Mundi
Olive Oil, extra virgin Monthly Price – US Dollars per Metric Ton Index Mundi
Questions
- Identify the factors that have contributed to the fall in the price of olive oil. Illustrate the effects on a demand and supply diagram.
- Explain what is meant by the fallacy of composition and how it relates to a price taker, such as a farmer.
- How do the price elasticities of demand and supply of olive oil help to explain the magnitude of the price fall?
- What developments in other vegetable oils are affecting the olive oil market? What determines the magnitude of these effects?
- What actions have been taken by the EU to support the olive oil market? Is this the most appropriate policy response?
- Why are Middle Eastern olive producers unable to compete on cost with the major EU producing countries?
Stock markets have been plummeting. The FTSE 100 index was 6055 on 7 July 2011; by 10 August, it was 17% lower at 5007. Since then it has risen as high as 5418, but by 13 September was down to 5092. Other stock markets have fared worse. The French index fell 30% between early July and September 13, and the German DAX index fell 32% over the same period.
These falls in share prices reflect demand and supply. Investors are worried about the future of the eurozone and the health of the European economy as Greek default looks more and more likely and as the debts of various other European countries, such as Portugal, Ireland and Spain, seem increasingly unsustainable in an environment of sluggish economic growth. They are also worried about high public-sector debt in the USA and the likelihood that global recovery will peter out.
The ‘bear’ market (falling share prices) reflects increased selling of shares and a lack of demand. Not only are investors worried about the global economy, they are also speculating that share prices will fall further, thereby compounding the falls (at least until the ‘bottom’ is reached).
But why have share prices fallen quite so much? And does it matter to the general public that this is happening? The following articles seek to answer these questions.
Articles
Shares tumble on fears over Greek default Guardian, Graeme Wearden (12/9/11)
European Factors-Shares set for steep fall on Greece worries Reuters (12/9/11)
Markets set for turmoil after G-7 letdown BusinessDay (South Africa), Mariam Isa (12/9/11)
What will happen if Greece defaults? The Conversation (Australia), Sam Wylie (12/9/11)
Germany and Greece flirt with mutual assured destruction The Telegraph, Ambrose Evans-Pritchard (11/9/11)
Market Swings Are Becoming New Standard New York Times, Louise Story and Graham Bowley (11/9/11)
The next bull market The Bull (Australia) (12/9/11)
Prepare For Recession And Bear Market Forbes, Sy Harding (9/9/11)
Eurozone crisis: What market turmoil means for you BBC News, Kevin Peachey (8/9/11)
Stock market indices
FTSE 100: historical prices, 1984 to current day Yahoo Finance
Dow Jones Industrial Average: historical prices, 1928 to current day Yahoo Finance
Nikkei 225 (Japan): historical prices, 1984 to current day Yahoo Finance
DAX (Germany): historical prices, 1990 to current day Yahoo Finance
CAC 40 (France): historical prices, 1990 to current day Yahoo Finance
Hang Seng (Hong Kong): historical prices, 1986 to current day Yahoo Finance
SSE Composite (China: Shanghai): historical prices, 2000 to current day Yahoo Finance
BSE Sensex (India): historical prices, 1997 to current day Yahoo Finance
Stock markets BBC
Questions
- What factors have led to the recent falls in stock market prices? Explain just why these factors have contributed to the falls.
- What is likely to happen to stock market prices in the coming weeks? Why is it difficult to predict this?
- What is meant by the efficient capital markets hypothesis? If markets were perfectly efficient, why would it be impossible to predict future movements in stock market prices? Why may stock markets not be perfectly efficient?
- What factors determine stock market prices over the longer term?
- How are share prices influenced by speculation? Distinguish between stabilising and destabilising speculation.
- Explain the various ways in which members of the general public can be affected by share price falls. Are you affected in any way? Explain.
- If Greece defaults, what will determine the resulting effect on stock markets?
- To what extent does the stock market demonstrate the ‘brutal face of supply and demand’?
The UK economy faces a growing problem of energy supplies as energy demand continues to rise and as old power stations come to the end of their lives. In fact some 10% of the UK’s electricity generation capacity will be shut down this month.
But new renewable sources, such as wind and solar, take a time to construct. New nuclear takes much longer (see the News Item, Going nuclear). And electricity from these low-carbon sources, after taking construction costs into account, is much more expensive to produce than electricity from coal-fired power stations.
