Tag: price elasticity of demand

The problem of obesity and healthy eating is a growing problem in many countries and governments have long been looking into designing policy to tackle this issue.

Some have gone for healthy eating campaigns and policies to encourage pregnant women to eat better, but one government took it a step further and introduced a Fat Tax. In October 2011, the Danish government introduced a tax on foods that are high in saturated fat in a bid to reduce consumption of these goods. However, this policy is now to be abolished.

The Fat Tax introduced by the government imposed a surcharge on foods that contained more than 2.3% saturated fat. Numerous products were affected, including meats, dairy and as expected – processed foods. The policy was criticised by scientists who said that saturated fat was the wrong target and perhaps they were proved right, but the government’s u-turn, which will now see the tax being abolished. The tax had gradually increased food prices throughout the country and authorities said that it had even put Danish jobs at risk.

With food prices much higher in Denmark with the tax, consumers switched from buying domestically produced goods to crossing the border into Germany and purchasing their cheaper food. This undoubtedly had an adverse effect on the Danish economy, as it represented a cut in consumer expenditure. Perhaps it also helps to explain Germany’s strong economy – it was feeding 2 nations! The Danish tax ministry said:

‘The fat tax and the extension of the chocolate tax — the so-called sugar tax — has been criticised for increasing prices for consumers, increasing companies’ administrative costs and putting Danish jobs at risk … At the same time it is believed that the fat tax has, to a lesser extent, contributed to Danes travelling across the border to make purchases … Against this background, the government and the (far-left) Red Green Party have agreed to abolish the fat tax and cancel the planned sugar tax’

Once the tax is abolished, other policies will need implementing to tackle the problem of obesity and encourage healthy eating, as it continues to be a big problem in this and many other countries. The following articles consider this problem.

Denmark to scrap world’s first fat tax Associated Press (10/11/12)
Denmark to abolish tax on high-fat foods BBC News (10/11/12)
Fat tax repealed The Copenhagen Post (10/11/12)
Businesses call fat tax a failure on all fronts The Copenhagen Post, Ray Weaver (10/11/12)

Questions

  1. Illustrate the effect of a tax being imposed on a diagram. What happens to equilibrium price and quantity?
  2. According to Danish authorities, consumers didn’t change their consumption habits with the tax. What does this suggest about the PED of these products?
  3. How does the amount of tax revenue generated vary with the price elasticity of demand and supply?
  4. What other policies could be implemented to encourage healthy eating?
  5. Why did this fat tax lead to higher food prices?
  6. Explain the way in which such a tax could adversely affect the Danish economy. Does this justify its removal?

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

  1. Illustrate the effect of the global wine harvest on a demand and supply diagram.
  2. 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?
  3. What elements are there in the supply chain from planting vines to consuming wine?
  4. How does the holding of stocks affect (a) the profitability of wine production; (b) the price volatility of wine?
  5. 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?
  6. How is the fallacy of composition relevant in assessing the benefits to owners of vineyards of a good grape harvest?

For some people, a pint of beer is a regular thing each week. Add all your pints of beer together, then add your friend’s pints, their friends’ pints and … you get the idea. Once you’ve done that for the entire population, you have an estimate of total beer consumption in the UK. This can then be compared with total consumption of beer in other countries and between continents.

Prior to 2007, Europe and the Americas were the biggest beer drinking continents, but since then, Asia has emerged as the leader of pints of beer consumed, drinking 67bn litres of beer compared with the Americas’ 57bn and Europe’s 51bn in 2011. In per capita terms, Asia is still some way off, with Japan leading the way as the highest Asian country in 41st place, consuming 64 litres of beer per year per capita of the population. So how is this relevant to economics and business?

Consumption of anything provides jobs – bar workers, manufacturers and in the case of beer, probably law enforcement! It probably also increases utility – after all, why consume it if it’s not going to give you some degree of satisfaction!

We can analyse the demand for beer and see how it varies with changes in price and income. Minimum prices for alcohol have been proposed as a means of reducing consumption, and tax and excise duties are always linked to alcoholic beverages and clearly have an effect on demand. In this case, however, we can also consider the emergence of Asia and how tastes have changed. It is the fastest growing beer market in the world; so what can we deduce from that? As the BBC News article states, it is ‘a sign of a young, upwardly mobile, and increasingly hedonistic population.’

Experts also say that the increased consumption of beer in Asian countries is closely correlated with growing incomes and prosperity. A consumer research analyst from Standard Chartered, Nirgunan Tiruchelvam, said:

“Beer has a clearer correlation with strong economic growth … People tend to drink beer in times of growth. They drink spirits when times are good and when times are bad.”

Data suggest that when a certain level of prosperity is reached in a nation, beer sales begin to rise. As many Asian economies begin to develop rapidly, beer sales have taken off. This could be regarded as a good thing for Europe. With stagnant Western economies, beer producers within Europe may be grateful for a growing demand in Asia. Indeed, many of the world’s biggest breweries are expanding rapidly, providing jobs and income. Consumers in Europe will also be happy to see that beer production remains profitable in other parts of the world. With unemployment still high and recession ongoing, a pint of beer will be a much needed pick-me-up for many people. At least, that’s what the evidence from the Great Depression of the 1930s suggested!!

It’s not good news for everyone, however. Beer production has also increased in Asian countries, most notably in China, which now leads the world as the largest beer producer. This clearly reduces the export potential for European beer producers.

Also, many argue that the growing consumption of beer in Asia is simply an illustration of growing Western influence and it is likely to create severe medical problems in the future. Binge drinking and under-age consumption is already a big problem in Western countries and this could soon begin to extend across the world. The following articles consider the growth in consumption of beer.

Brewers thirsty for expansion as taste for beer grows in emerging markets Guardian, Simon Neville (3/9/12)
Beer in Asia: the drink of economic growth BBC News, Saira Syed (6/9/12)
Study says world beer production hits new high Long Island Business News, Associated Press (8/8/12)
Global beer sales go up for 27th year running News Track India (9/8/12)

Questions

  1. Use a supply and demand diagram to analyse recent trends in beer consumption across the world.
  2. Which factors have caused demand in emerging markets to increase? Based on your answer to the previous question, how might that have affected equilibrium prices?
  3. How has growth in beer consumption throughout Asia benefited Western producers?
  4. What would you expect the price and income elasticities of demand to be for a product such as beer? Explain your answer.
  5. To what extent do you think this trend in beer production is a sign of globalisation?
  6. Evaluate the extent to which the growth in consumption and production of beer in Asia is a good thing. You should consider everyone who and everything might be affected!

With droughts and poor harvests in both North America and in Russia and the Ukraine, there are worries that food prices are likely to see sharp rises in the coming months. This is clearly bad news for consumers, especially the poor for whom food accounts for a large proportion of expenditure.

But it’s also bad news more generally, as higher food prices are likely to have a dampening effect on the global economy, struggling to recover from five years of low or negative growth. And it’s not just food prices. Oil prices are rising again. Since mid June, they have risen by nearly 25%. This too is likely to have a dampening effect.

Another contributing factor to rising food prices is a response, in part, to rising oil prices. This is the diversion of land from growing food to growing crops for biofuels.

G20 countries held a conference call on 28 August to discuss food prices. Although representatives decided against an emergency meeting, they agreed to reassess the situation in a few weeks when the size of the US harvest would be clearer. If the situation proved as bad as feared, then the G20 would call an emergency meeting of the Rapid Response Forum, to consider what could be done.

But is the sole cause of rising food prices a lack of production? Are there other problems on the supply side, such as poor distribution systems and waste? And what about the role of demand? How is this contributing to long-term increases in food prices? The articles consider these various factors and what can be done to dampen food prices.

Articles
G20 points to ‘worrying’ food prices Financial Times, Javier Blas (28/8/12)
US food prices to surge on drought Gulf News(30/8/12)
Best to get used to high food and energy prices – they’re here to stay The Telegraph, Jeremy Warner (29/8/12)
Feeling a drought The Economist (14/8/12)
Q&A: World food and fuel prices BBC News (14/8/12)
G20 considers global meeting as food prices rise BBC News (28/8/12)
Biofuels and Food Prices (direct link) BBC ‘In the Balance’ programme (25/8/12)
U.N. body urges G20 action on food prices, waste Reuters, Patrick Lannin (27/8/12)
Ethanol industry hits back over food price claims EurActiv (28/8/12)
The era of cheap food may be over Guardian, Larry Elliott (2/9/12)

Data
Food Price Index Index Mundi

Questions

  1. Why have food prices been rising in recent weeks?
  2. Use a demand and supply diagram to demonstrate what has been happening to food prices.
  3. What determines the price elasticity of demand for wheat? What might this elasticity vary over time?
  4. What is the role of speculation in determining food prices?
  5. Illustrate on an aggregate demand and supply diagram the effect of a commodity price shock. What is likely to be the policy response from central banks?
  6. What determines the price elasticity of supply of food in (a) the short term and (b) the long term?
  7. What determines the cross price elasticity of supply of food to the price of oil? Is the cross price elasticity of supply positive or negative?
  8. What can governments do to reduce food prices, or at least reduce food price inflation?
  9. What benefits may come from higher food and fuel prices over the longer term?

Oil prices have been falling in recent months. By early June they had reached a 17-month low. The benchmark US crude price (the West Texas Intermediate price) fell to $83.2 at the beginning of the month, and Brent Crude (the North Sea reference price for refining into petrol) fell to $97.7 (see chart). (For a PowerPoint of the chart below, click here.)

At the same time various commodity prices have also been falling. The IMF all commodities price index has fallen by 7.2% over the past 12 months and by 6.2% in May alone. Some commodities have fallen much faster. In the 12 months to May 2012, natural gas fell by 44%, wheat by 25%, lamb by 37%, Arabica coffee by 36%, coconut oil by 45%, cotton by 47%, iron ore by 23% and tin by 29%.

Although part of the reason for the fall in the price of some commodities is increased supply, the main reason is weak world demand. And with continuing problems in the eurozone and a slowdown in China and the USA, commodity price weakness is likely to continue.

So is this good news? To the extent that commodity prices feed through into consumer prices and impact on the rate of inflation, then this is good news. As inflation falls, so central banks will be encouraged to make further cuts in interest rates (in the cases where they are not already at a minimum). For example, the Reserve Bank of Australia cut its cash rate last week from 3.75% to 3.5%. This follows on from a cut from 4.25% on 1 May. In cases where there is no further scope for interest rate cuts (e.g. the US Federal Reserve Bank, whose interest rate is between 0% and 0.25%), then the fall in inflation may encourage a further round of quantitative easing.

But falling commodity prices are also a reflection of bad news, namely the low economic growth of the world economy and fears of turmoil from a possible Greek exit from the euro.

Update
A day after this was written (9/6/12), a deal was agreed between eurozone ministers to provide support of up to €100 billion for Spanish banks. This helped to reduce pessimism about the world economy, at least temporarily. Stock markets rose and so too did oil prices, by around 1%. But if pessimism increases again, then the fall is likely to resume.

Articles

Oil prices hit a 17-month low on China slowdown fears BBC News (8/6/12)
Oil gives up gains without signs of Fed move BloombergBusinessweek, Sandy Shore (7/6/12)
Oil Heads for Longest Run of Weekly Losses in More Than 13 Years BloombergBusinessweek, (8/6/12)
Gold plunges as Bernanke gives no hint of stimulus Live5News(7/6/12)
Oil Price Tumbles Below $83 on Weak Economy Money News(8/6/12)
World food price index expected to fall for May Reuters(6/6/12)
Oil price losing streak continues Guardian, Julia Kollewe (8/6/12)

Data

Spot fuel prices US Energy Information Administration
Commodity Prices Index Mundi
Crude Oil Price Index Index Mundi

Questions

  1. Why have crude oil prices fallen to their lowest level for 17 months?
  2. How can the concepts of income elasticity of demand, price elasticity of supply and price elasticity of demand help to explain the magnitude of the fall in crude oil prices?
  3. Would a fall in inflation linked to a fall in commodity prices be a fall in cost-push or demand-pull inflation? Explain.
  4. What are the macroeconomic implications of the fall in crude oil prices?
  5. What factors are likely to have significant impact on crude oil prices in the coming months
  6. Why is it difficult to predict crude oil prices over the coming months?