Tag: price elasticity of supply

In the past few weeks, the prices of gold and silver have been soaring and have hit all-time (nominal) highs. Over the past 12 months, gold has risen by 31%, while silver has risen by 149% and 64% since the start of February. Part of this reflects the general rise in commodity prices (see also). Oil is trading at around $125 per barrel, up 43% on a year ago; wheat is up 66%, maize by 114%, coffee (Arabica) by 118% and cotton by 122%.

Part of the reason for the rise in the price of precious metals, however, has been the weakness of the dollar. In such times, gold and silver are often seen as a ‘safe haven’ for investors.

So why have commodity prices been rising and why has the dollar been falling? What is likely to happen to the prices of gold and silver in the coming weeks and months? Is their meteoric rise set to continue? Will the ratio of the gold price to the silver price continue to fall? The following articles investigate.

Articles
Gold and silver prices jump to new record highs BBC News (25/4/11)
Gold rises 7% in April as US dollar continues to weaken BBC News (29/4/11)
Gold and silver set new highs after S&P move Financial Times, Jack Farchy (22/4/11)
Real Interest Rates Explain the Gold Price Perfectly…Too Perfectly? The Market Oracle, Andrew Butter (25/4/11)
Silver, platinum to outshine gold Toronto Sun, Sharon Singleton (25/4/11)
Gold Bugs Beware Of Fed Extermination Forbes blogs: Great Speculations, Mark Sunshine (25/4/11)
Shock and Au: Hedging Against Fear EconomyWatch, Alice Briggs (26/4/11)
Keeping an Eye on the Gold/Silver Ratio Seeking Alpha, Evariste Lefeuvre (25/4/11)

Data
Commodity Prices Index Mundi
Commodities Financial Times
Commodities BBC Market Data

Questions

  1. Why have the prices of gold and silver risen so much recently?
  2. Why has silver risen more than gold?
  3. Why may higher rates of world inflation make investors turn to precious metals for investment?
  4. How are future decisions by the Fed likely to affect the price of gold?
  5. According to the efficient capital markets theory (strong version), the current price of a commodity should already reflect all knowable factors that are likely to affect the price? Does this mean that speculative buying (or selling) is pointless?
  6. How is the price elasticity of supply of silver and gold relevant in explaining the magnitude of their price movements?

Are we heading for ‘perfect storm’ in commodity production and prices? Certainly the prices of many commodities have soared in recent months. These include the prices of foodstuffs such as dairy products, cooking oils and cereals, crude oil, cotton, metals and many other raw materials. The overall world commodity price index has risen by 28% in the past 12 months. The following are some examples of specific commodities:

Price rises in the 12 months to February 2011

• Wheat 62%
• Maize 59%
• Coffee 70%
• Beef 39%
• Sugar 46%
• Palm kernal oil 142%
• Soybean oil 50%
• All food price index 32%
• Crude oil 20%
• Cotton 132%
• Fine wool 55%
• Softwood timber 25%
• Iron ore 78%
• Copper 29%
• Tin 55%
• All metals index 58%
• Rubber 79%.

The problems are both short term and long term, and on both the demand and supply sides; and the effects will be at micro, macro and global levels. Some hard choices lie ahead.

The following webcast, articles and reports explore both the current position and look into the future to ask whether rising commodity prices are likely to continue or even accelerate.

The first link is to a BBC World Debate which considers the following issues: “Is scarcity of natural resources a serious challenge for developing and advanced economies? How great is the risk that scarcity might lead to conflict, both within and between nations? Might a scramble for resources lead to a retreat from globalisation and to greater protectionism?”

Webcast
World Debate: Resources BBC World Debate, Louise Arbour, President and CEO, International Crisis Group; James Cameron, Global Agenda Council on Climate Change; He Yafei, Ambassador and Permanent Representative of China to the UN; Malini Mehra, Founder and CEO, Centre for Social Markets; Kevin Rudd, Minister of Foreign Affairs, Australia (19/1/11)

Articles
Global Food Prices Continue to Rise Reuters, Steve Savage (7/3/11)
The 2011 oil shock The Economist (3/3/11)
Global Food Prices Will Probably Be Sustained at Record This Year, UN Says Bloomberg, Supunnabul Suwannaki (9/3/11)
Food prices to stay high as oil costs, weather weigh livemint.com, Apornrath Phoonphongphiphat (9/3/11)
‘Perfect storm’ threatens agriculture in developing nations Manila Bulletin, Lilybeth G. Ison (9/3/11)
IMF sees no immediate respite from high food prices Commodity Online (7/3/11)
Drought, supply, speculation drive world food prices to record high NZ Catholic (8/3/11)
The Factors Affecting Global Food Prices Seeking Alpha, David Hunkar (7/3/11)
World food prices climb to record as UN sounds alarm on further shortages FnBnews (India), Rudy Ruitenberg (9/3/11)
Food crisis: It’s a moral issue for all of us New Straits Times (Malaysia), Rueben Dudley (8/3/11)
Oil prices: Green light from the black stuff Guardian (5/3/11)
Cotton hits $2 a pound Guardian, Terry Macalister (17/2/11)
Supermarkets are raising prices faster than inflation, says UBS The Telegraph, Philip Aldrick (1/3/11)
What next for commodity prices? BBC News, Jamie Robertson (5/5/11)

Reports
FAO Cereal Supply and Demand BriefFood & Agriculture Organization, United Nations (March 2011)
Rising Prices on the Menu Finance & Development (IMF), Thomas Helbling and Shaun Roache (March 2011)

Data
Commodity prices Index Mundi
Commodities Financial Times, market data

Questions

  1. Identify the various factors that are causing rises in commodity prices. In each case state whether they are supply-side or demand-side factors.
  2. How can the price elasticity of demand and supply, the income elasticity of demand and the cross-price elasticity of demand be used to analyse the magnitude of the price rises?
  3. To what extent are rising food prices the result of (a) short-term (i.e. reversible) factors; (b) long-term trends?
  4. Why are food prices in the shops rising faster in the UK than in many other countries?
  5. To what extent is the future of food security and prices and moral issues?
  6. Why may current oil price rises become an opportunity for the future?
  7. What might be the respective roles be of government, business and consumers in responding to natural resource constraints?

Demand and supply determine prices, but when it comes to factors of production, such as labour, their ‘price’ is largely influenced by their productivity. This helps to explain why doctors are paid more than cleaners and Premiership footballers more than amateurs. But, can it really explain a £50 million transfer price for Fernando Torres, as he moves from Liverpool to Chelsea? Undoubtedly he’s a good footballer, but are his skills worth the price paid? The same question can be asked about David Luiz – a price of £25 million; Andy Carroll – a price of £36 million and a bargain price for Luis Suarez – a mere £23 million! How can teams, such as Chelsea afford to spend so much money, despite making a loss of £70.9 million in the year to June 2010? How much would they have lost had they not won the Premier league and the FA cup?

With the country facing the possibility of returning to recession and the trouble that Portsmouth FC found itself in last season, UEFA’s ‘financial fair play’ rules seemed like a good idea. But, they appear to have been thrown out the window. £200 million was spent on a handful of footballers, as libraries across the UK are shut down due to a lack of funds. The Premier League in the UK generated a higher income than any other, equal to £2.3 billion. However, 14 of our clubs made substantial losses. The amount owed to banks or the owners backing these clubs came in at a mere £3 billion. As the big clubs in the UK push up the prices, more and more ‘small’ clubs are being competed out of the market.

Torres makes record move from Liverpool to ChelseaBBC Sport(31/1/11)
Chelsea and Liverpool drive astonishing £134 million manic Monday Telegraph, Jason Burt (1/2/11)
Champions Chelsea report £70.9 million loss BBC News (31/1/11)
Chelsea announces 70.9 million pound annual loss despite winning Premier League and FA Cup The Canadian Press, Stuart Condie (1/2/11)
Financial restraint goes out of the window when the big clubs struggle Guardian, David Conn (1/2/11)

Questions

  1. How are the prices of footballers determined? Use a diagram to illustrate your answer.
  2. What factors explain why Premier League footballers are paid so much more than those in the Conference?
  3. What type of market structure is the UK football league?
  4. As prices are bid upwards, is there an argument that smaller clubs are being competed out of the transfer market? What type of market structure is football becoming?
  5. How is that Chelsea can make £70 million loss but still have the finance to spend £50 million on new players?
  6. What policies could be used to ensure lower prices are paid for footballers? Would they be effective and are they needed?

The world’s population is set to go on rising – at least to 2050. And as population rises, so will the demand for food. But here we come up against a potentially catastrophic illustration of the law of diminishing returns. Population is set to grow, but the world supply of land is pretty well fixed. And with global warming, some land may become unusable.

According to Sir John Beddington, an expert in population biology and lead author of a government-commissioned report, The Future of Food and Farming, there could be serious consequences of this population rise, including rapid rises in the demand for food, rising food prices, rising land prices, the degradation of land, growing food poverty in many developing countries, growing political unrest and serious environmental damage. As the report’s Executive Summary states:

The global food system will experience an unprecedented confluence of pressures over the next 40 years. On the demand side, global population size will increase from nearly seven billion today to eight billion by 2030, and probably to over nine billion by 2050; many people are likely to be wealthier, creating demand for a more varied, high-quality diet requiring additional resources to produce. On the production side, competition for land, water and energy will intensify, while the effects of climate change will become increasingly apparent. The need to reduce greenhouse gas emissions and adapt to a changing climate will become imperative. Over this period globalisation will continue, exposing the food system to novel economic and political pressures.

Any one of these pressures (‘drivers of change’) would present substantial challenges to food security; together they constitute a major threat that requires a strategic reappraisal of how the world is fed.

The report specifically looks at five key challenges for the future:

A. Balancing future demand and supply sustainably – to ensure that food supplies are affordable.
B. Ensuring that there is adequate stability in food prices – and protecting the most vulnerable from the volatility that does occur.
C. Achieving global access to food and ending hunger – this recognises that producing enough food in the world so that everyone can potentially be fed is not the same thing as ensuring food security for all.
D. Managing the contribution of the food system to the mitigation of climate change.
E. Maintaining biodiversity and ecosystem services while feeding the world.

So what can be done and how realistic are the policy solutions? The following broadcasts and articles examine the arguments

Webcasts and podcasts

Articles

Report

Questions

  1. Summarise the main findings of the report.
  2. Does increasing the output of food per agricultural worker contradict the law of diminishing returns? Explain.
  3. What are the current failings of the system of global food supply?
  4. Why are problems of food supply likely to intensify?
  5. What externalities are involved in global food production? What impact do these have?
  6. In what ways might the externalities be internalised?
  7. What are the benefits and dangers of new technologies as means of increasing food supply?
  8. To what extent do the goals of increasing food supply and environmental sustainability conflict with each other?
  9. Explain the main drivers of change that affect food supply and demand? In what ways do these drivers interact with each other?
  10. “Although the challenges are enormous there are real grounds for optimism.” Explain the report’s authors’ thinking here.

BP has just published its latest projection of energy trends – its Energy Outlook 2030. According to the press release:

World energy growth over the next twenty years is expected to be dominated by emerging economies such as China, India, Russia and Brazil while improvements in energy efficiency measures are set to accelerate.

The following podcast from the Financial Times features a discussion of the report and the factors affecting oil prices and their relationship to economic growth

Webcast
Emerging economies seen driving energy demand Financial Times videos, John Authers and Vincent Boland (19/1/11)

Articles
Energy outlook Financial Times, Lex column (19/1/11)
BP energy outlook: main points The Telegraph (20/1/11)
High energy prices need not mean doom Sydney Morning Herald, Jeremy Warner (21/1/11)

Report
BP Energy Outlook 2030 (January 2011)

Data
Power slide The Economist: Daily Chart (19/1/11)

Questions

  1. What are the most powerful driving forces behind the demand for energy?
  2. Why does the report forecast virtually no increase in energy demand in developed countries? What assumptions are made about growth rates in OECD and non-OECD countries?
  3. What factors would lead to a substitution of sustainable energy sources for fossil fuels? What would detrmine the size of such substitution?
  4. What is the role of the price elasticity of demand for and supply of oil and the income elasticity of demand for oil in determining oil consumption in different parts of the world?
  5. Why may high energy prices not necessarily mean ‘doom’?