The market for any good or service is affected by countless factors. On the demand-side, things such as incomes, relative prices, expectations of price changes and tastes determine the shape and position of the demand curve. For the supply curve, it’s factors including costs of production, the profitability of alternative goods and in some cases, the weather or natural disasters. It is this last factor, which has presented Weetabix with problems.
An established breakfast cereal and brand, Weetabix is well-known for producing a range of high quality products. However, production of some of its most popular products has been stopped, as the quality of the British wheat used to make the various cereals was called into question. Last year, we had little summer to speak of and this led to the ‘worst harvest we have seen in decades’, so much so that the quality of the wheat was not sufficient to be used in making the breakfast cereal. This has caused production to cease on certain products and shortages have already begun to emerge, with some shops completely selling out and facing no prospect of being re-stocked.
Weetabix is now owned by a Chinese state-owned company, but still prides itself on using locally sourced wheat. However, with the weather affecting the harvest, wheat from abroad has had to be used, aiming to reduce the gap between demand and supply. The UK is typically an exporter of wheat, but with the poor harvest has come a drop in the amount of wheat produced and thus exported by some 2m tonnes – this is back to a similar level as was seen in the 1980s. A spokesman for Weetabix said:
Normally they’re proud to claim Weetabix is not just British wheat but from within 50 miles of Burton Latimer … They have had to source a bit from outside the UK, but Weetabix is still proud to say it sources its wheat within the UK … weather permitting.
Supply will be increased once wheat from abroad is used, but it is expected that this will take a couple of weeks. In the meantime, if you’re a consumer of the traditional Weetabix, you don’t need to worry, as it’s the less-known cereals that have been affected. The following articles consider this external factor and how it affects the supply of a product.
Weetabix products hit by poor wheat harvest BBC News (22/4/13)
Weetabix supplies hit by dismal harvest The Guardian, Rupert Neate (22/4/13)
Weetabix move to scale back production and re-engineer process is a commendable one The Grocer (20/4/13)
Britain’s disastrous wheat harvest halts production of Weatbix Minis and Oatibix Mail Online, Leon Watson (22/4/13)
Bad weather threatens wheat harvest Channel 4 News, Tom Clarke (3/4/13)
Weetabix halts production of Minis after poor harvest Farmers Weekly, Philip Case (22/4/13)
Questions
- With a poor harvest, which way would you expect the supply curve to shift? Illustrate this on a diagram.
- How should this shift in supply affect the market price and quantity of wheat, assuming all else remains the same?
- How can this example can be used to explain the interdependence between markets?
- With shortages possibly emerging, what might happen to demand today? Illustrate your answer on a demand and supply diagram.
- Does sourcing wheat from local areas give Weetabix a competitive advantage? If so, how might it be affected if it does choose to import wheat?
When you hear about China, it’s often regarding their huge population, their strong growth or their dominance in exports. But, when it comes to baby milk, China is certainly an importer – and a big one at that. For many new parents, getting the ‘real thing’ when it comes to baby formula is absolutely essential.
Chinese baby formula is feared by many new parents, due to the potential for it to contain hormones and dangerous chemicals. This has led them to go to great lengths to ensure they have sufficient supplies of imported baby formula, often only trusting it if it has been hand carried from overseas. However, such is the demand for this safe version of baby milk that the global response has been to place restrictions on it. Essentially, we are seeing a system of rationing emerging.

Hong Kong was the first government to limit the amount bought to two cans of formula per day, with the potential for a fine of over $64,000 and up to two years in prison for those who do not abide by the rules. The UK has now also responded with restrictions on the quantity that can be purchased and other countries may follow suit if the excess demand continues.
According to Sainsburys:
As a short-term measure, retailers including Sainsbury’s are limiting the amount of baby milk powder that people can buy. In this way we aim to ensure a constant supply for our customers and we therefore hope they won’t be inconvenienced.
The Chinese government has reacted to this and is aiming to restore confidence in the food industry, but as yet there has been little positive effect and until there are 100% guarantees of food safety the surge in demand for baby formula from abroad is likely to continue.
This policy of rationing is clearly not only going to affect Chinese parents looking to import baby formula, but is already having an impact on domestic residents. Parents living in the UK are feeling the rationing effects and are also being restricted in terms of how many cans of formula they can buy per day. For many families this isn’t a problem, but for those with multiple children and for whom a trip to the supermarket is not a simple task, the restrictions on baby milk purchases is likely to become a problem. The following articles consider this topic.
Baby milk rationing: Chinese fears spark global restrictions BBC News, Celia Hatton (10/4/13)
Stop rationing information about baby formula milk The Telegraph, Rosie Murray-West (9/4/13)
Baby milk rationed in UK over China export fear BBC News (8/4/13)
Baby Formula rationed in UK over China demand Sky News (9/4/13)
Supermarkets limit sales of baby milk to stop bulk buying to feed China market Independent, Emma Bamford (8/4/13)
Cahinese thirst for formula spurs rationing Financial Times, Amie Tsang and Louise Lucas (7/4/13)
Entrepreneurs milk Chinese thirst for formula Financial Times, Amie Tsang and Louise Lucas (7/4/13)
Baby milk powder rationing introduced by supermarkets The Guardian, Rebecca Smithers (8/4/13)
Questions
- Using a diagram of demand and supply, illustrate how a shortage for a product can emerge. How does the price mechanism usually work to eliminate a shortage?
- What actions can be taken to deal with a shortage?
- How will more stringent regulations by the Chinese government help to restore confidence in Chinese baby milk formula?
- What impact will the imports of baby milk formula into China have on China’s exchange rate and its balance of payments?
- How could this situation be taken advantage of by entrepreneurs? Could it be used as a viable business opportunity?
In the blog No accounting for trade, the rise in the UK’s balance of trade deficit was discussed. Many factors have contributed to this weakening position and no one market is to blame. But, by analysing one product and thinking about the factors that have caused its export volumes to decline, we can begin to create a picture not just of the UK economy (or more particularly Scotland!), but of the wider global economy.
Scotch whisky may not have been the drink of choice for many British adults, but look outside Great Britain and the volume consumed is quite staggering. For example, French consumers drink more Scotch whisky in one month than they drink cognac in one year. The volume of Scotch whisky exported from our shores was £4.23 billion for 2011, accounting for 90% of all sales and making its way into 200 markets. However, one problem with this product is that it is highly susceptible to the business cycle. Add to this the time required to produce the perfect Scotch (in particular the fact that it must be left to mature) and we have a market where forecasting is a nightmare.
Producers typically look to forecast demand some 10 years ahead and so getting it right is not always easy, especially when the global economy declines following a financial crisis! So what has been the impact on exports of this luxurious drink? In the past few years, it has been as key growth market for UK exports rising by 190% in value over the past decade. But in 2012 the volume of Scotch whisky exports fell by 5% to 1.19 billion bottles. What explains the decline in sales?
The biggest importer of Scotch whisky is France and its volumes were down by 25%. Part of this decline is undoubtedly the economic situation. When incomes decline, demand for normal goods also falls. Many would suggest Scotch whisky is a luxury and thus we would expect to see a relatively large decline following any given fall in income. However, another factor adding to this decline in 2012 is the increased whisky tax imposed by the French government. Rising by 15% in 2012, commentators suggest that this caused imports of Scotch whisky to rise in 2011 to avoid this tax, thus imports in 2012 took a dive. Spain is another key export market and its economic troubles are clearly a crucial factor in explaining their 20% drop in volume of Scotch whisky imported.
But, it’s not all bad news: sales to Western Europe may be down, but Eastern Europe and other growth countries/continents, such as the BRICs and Africa have developed a taste for this iconic product. Latvia and Estonia’s value of Scotch whisky imports were up by 48% and 28% respectively, as Russian demand rises and China, still growing, is another key market. Gavin Hewitt, chief executive of the Scotch Whisky Association said:
A combination of successful trade negotations, excellent marketing by producers, growing demand from mature markets, particularly the USA, and the growing middle class in emerging economies helped exports hit a record £4.3bn last year.
Furthermore, while the volume of exports worldwide did fall, the value of these exports rose to £4.27 billion, a growth of 1%. This suggests that although we are exporting fewer bottles, the bottles that we are exporting are more expensive ones. Clearly some people have not felt the impact of the recession. For Scotland and the wider UK, these declining figures are concerning, but given the cyclical nature of the demand, as the world economy slowly begins to recover, sales are likely to follow suit. Gavin Hewitt continued his comments above, saying:
We are contributing massively to the Government’s wish for an export-led recovery. There is confidence in the future of the industry, illustrated by the £2bn capital investment that Scotch whisky producers have committed over the next three to four years.
The following articles consider the rise and fall of this drink and its role as a key export market across the world.
Scottish whisky industry puts export hope in new market BBC News (2/4/13)
Scotch whisky sales on the slide The Guardian, Simon Neville (2/4/13)
Growth stalls for Scotch whisky exports BBC News (2/4/13)
Scotch whisky accounts for 25pc of UK’s food and drink exports The Telegraph, Auslan Cramb (2/4/13)
Whisky sales fall but value of exports hits new high Herald Scotland (3/4/13)
Scotch whisky exports rise to record value The Telegraph, Auslan Cramb (2/4/13)
Scotch whisky exports hit by falling demand in France The Grocer, Vince Bamford (2/4/13)
New markets save Scotch from impact of austerity Independent, Tom Bawden (2/4/13)
Scotch exports hit by falling demand Financial Times, Hannah Kichler (2/4/13)
Questions
- Which is the better measure of an industry’s performance: the value or the volume of goods sold?
- Why would you expect volumes of Scotch sold to decline during an economic downturn?
- When a higher tax was imposed on Scotch whisky in France, why did volumes fall? Use a demand and supply diagram to illustrate the impact of the tax.
- What type of figure would you expect Scotch whisky to have for income elasticity of demand? Does it vary for different people?
- Why is forecasting demand for Scotch so difficult? What techniques might be used?
- Why does demand for Scotch whisky remain high and even rising in many emerging markets?
- Is the market for Scotch whisky exports a good indication of the interdependence of countries across the world?
The exchange rate for sterling is determined in much the same way as the price of goods – by the interaction of demand and supply.
When factors change that cause residents abroad to want to hold more or fewer pounds, the demand curve for sterling will shift. If, instead, factors change that cause UK residents to want to buy more or less foreign currency, then the supply curve of sterling will shift. It is these two curves that determine the equilibrium exchange rate of sterling.
There are concerns at the moment that sterling is about to reach a peak, with expectations that the pound will weaken throughout 2013. But is a weakening exchange rate good or bad for the UK?
With lower exchange rates, exports become relatively more competitive. This should lead to an increase in the demand for UK products from abroad. As exports are a component of aggregate demand, any increase in exports will lead to the AD curve shifting to the right and thus help to stimulate a growth in national output. Indeed, throughout the financial crisis, the value of the pound did fall (see chart above: click here for a PowerPoint) and this led to the total value of UK exports increasing significantly. However, the volume of UK exports actually fell. This suggests that whilst UK exporters gained in terms of profitability, they have not seen much of an increase in their overall sales and hence their market share.
Therefore, while UK exporters may gain from a low exchange rate, what does it mean for UK consumers? If a low exchange rate cuts the prices of UK goods abroad, it will do the opposite for the prices of imported goods in the UK. Many goods that UK consumers buy are from abroad and, with a weak pound, foreign prices become relatively higher. This means that the living standards of UK consumers will be adversely affected by a weak pound, as any imported goods buy will now cost more.
It’s not just the UK that is facing questions over its exchange rate. Jean-Claude Junker described the euro as being ‘dangerously high’ and suggested that the strength or over-valuation of the exchange rate was holding the eurozone back from economic recovery. So far the ECB hasn’t done anything to steer its currency, despite many other countries, including Japan and Norway having already taken action to bring their currencies down. Mario Draghi, the ECB’s president, however, said that ‘both the real and the effective exchange rate of the euro are at their long-term average’ and thus the current value of the euro is not a major cause for concern.
So, whatever your view about intervening in the market to steer your currency, there will be winners and losers. Now that countries are so interdependent, any changes in the exchange rate will have huge implications for countries across the world. Perhaps this is why forecasting currency fluctuations can be so challenging. The following articles consider changes in the exchange rate and the impact this might have.
A pounding for sterling in 2013? BBC News, Stephanomics, Stephanie Flanders (17/1/13)
UK drawn into global currency wars as slump deepens Telegraph, Ambrose Evans-Pritchard (16/1/13)
Foreign currency exchange rate predictions for GBP EUR, Forecasts for USD and NZD Currency News, Tim Boyer (15/1/13)
Euro still looking for inspiration, Yen firm Reuters (16/1/13)
Daily summary on USD, EUR, JPY, GBP, AUD, CAD and NZD International Business Times, Roger Baettig (16/1/13)
UK inflation bonds surge on Index as pound falls versus euro Bloomberg, Business News, Lucy Meakin (10/1/13)
Questions
- Which factors will cause an increase in the demand for sterling? Which factors will cause a fall in the supply of sterling?
- In the article by Stephanie Flanders from the BBC, loose monetary policy is mentioned as something which is likely to continue. What does this mean and how will this affect the exchange rate?
- Explain the interest- and exchange-rate transmission mechanisms, using diagrams to help your answer.
- If sterling continues to weaken, how might this affect economic growth in the UK? Will there be any multiplier effect?
- What is the difference between the volume and value of exports? How does this relate to profit margins?
- Why are there suggestions that the euro is over-valued? Should European Finance Ministers be concerned?
- Should governments or central banks intervene in foreign exchange markets?
- If all countries seek to weaken their currencies in order to make their exports more competitive, why is this a zero-sum game?
Trade is generally argued to be good for economic growth, as it allows countries to specialise in those goods in which they have a comparative advantage and thus produce and consume more of all goods in total. However, trade inevitably leads to winners and losers, especially as countries impose tariffs on imports in order to protect domestic industries. This has been the case in the banana industry.
Banana growers in the former European colonies have long been protected by EU tariffs, helping to prevent competition from their Latin American banana growers. But, now things could be about to change. In December 2009, most of the nations concerned reached an agreement in Geneva for tariffs imposed by the EU to be gradually reduced.

The European Union had imposed no duty on bananas from their former colonies, but had imposed tariffs on banana imports from other countries. This meant that those countries now benefiting from zero import duty could sell their bananas for a much lower price, therefore restricting the other nations (who did have to pay an import duty) from competing effectively.
With the World Trade Organisation in attendance, an agreement was signed that puts an end to this trade dispute dating back over 2 decades. The Director General of the WTO, Pascal Lamy said:
‘This is a truly historic moment … After so many twists and turns, these complicated and politically contentious disputes can finally be put to bed. It has taken so long that quite a few people who worked on the cases, both in the Secretariat and in member governments have retired long ago.’
This trade war has been ongoing for many years and this agreement represents a big step in the right direction. With a fairer playing field in this banana market, countries in Latin America will now be much more able to compete with other nations. As economists argue that trade is good, a reduction in protectionist measures should be seen as a good thing and will benefit the countries concerned. The following articles consider this trade resolution.
Banana war ends after 20 years BBC News (8/11/12)
WTO: Historic signing ends 20 years of EU-Latin American banana disputes 4-Traders, WTO (8/11/12)
EU, Latin America nations mark end of ‘banana war’ Fox News (8/11/12)
Banana war ends after 20 years The Telegraph (9/11/12)
Infamous banana dispute ends Sky News (9/11/12)
Questions
- What is comparative advantage and how does it lead to gains from trade?
- How does a tariff help protect a country’s domestic industry?
- Using a diagram, illustrate the effect of a tariff being imposed on banana imports from Latin America. Is there a cost to society of such a policy?
- Now, show what happens when this tariff is removed by the EU. Who benefits and who loses?
- What is the role of the World Trade Organisation?
- How does a tariff affect a country’s ability to compete with other nations?