In two recent blogs we have analysed the headache facing the Monetary Policy Committee, given the persistence of inflationary pressures in the UK economy, in deciding whether to raise interest rates. In Food for thought, Elizabeth Jones describes how, despite the weakness of aggregate demand, cost pressures have fuelled inflation while John Sloman in Time for a rise in Bank Rate looks at the difficult judgement call for the MPC in risking a marked dampening of aggregate demand by raising rates while, on the other hand, failing to dampen inflationary expectations by not raising rates. In this blog Dean Garratt analyses some of the latest inflation figures as detailed in the latest Consumer Price Indices Statistical Bulletin. In particular, he focuses on the inflation rates within the overall consumer price inflation rate.
You might be wondering what we mean when we refer to inflation rates within the overall inflation rate. In answering this we need to consider how the Office for National Statistics goes about estimating the Consumer Price Index (CPI) and the CPI inflation rate (further details are available in Consumer Price Indices – A Brief Guide produced by the ONS). In order to compile the Consumer Price Index (CPI), each month an organisation collects on behalf of the ONS something in the region of 110,000 prices quotations for around 560 items. But, the key point is that these goods and services fall into one of 12 broad product groups which are referred to as level 1 product groups. These include, for example, food and non-alcoholic beverages and transport.
The items included in each of the 12 product groups are reviewed once a year so that the chosen items remain representative of today’s spending patterns. Once the price information for our representative goods and services has been collected, the prices are compared with their levels in the previous January and the change recorded. These changes are then aggregated in both each product group and across all groups. The price changes are aggregated by weighting them according to the typical share of household spending that each good or service represents. This process is repeated each month in the year so as to always calculate the aggregate change in prices since January. The final step is to link the price changes with those from earlier years to form one long price index, both for each product group and for the overall shopping basket, so that at one arbitrary moment in time the index takes a value of 100.
Once we have our price indices we can calculate annual rates of price inflation. The annual rate of CPI inflation in December 2010 is recorded at 3.7%. This means that the Consumer Price Index was 3.7% higher in December 2010 than it was December 2009. Similarly, the annual rate of CPI inflation in November 2010 of 3.3% means that consumer prices rose by 3.3% between November 2009 and November 2010. Across 2010 as a whole the CPI rose by 3.3%, so in excess of the Bank of England’s inflation rate target range, and significantly up on the 2.2% across 2009. The Bank has a symmetrical inflation rate target of 2% plus or minus 1 percentage point (you may want to read more about the Bank’s Monetary Policy Framework).
Let’s look to delve deeper because price indices are also available for product groups at two lower levels known as level 2 and level 3 product groups. For example, from within the food and non-alcoholic beverages group there is a price index wholly for food and within this one for vegetables. Again annual rates of price inflation can be found for level 2 and level 3 product groups.
If we consider food and non-alcoholic beverages we find an annual rate of price inflation for December of 6.1%. This was its highest annual rate since May 2009. Across 2010 as a whole we find that prices rose by 3.4%, very much in accordance with the overall CPI inflation rate. Inflationary pressures within this category are not new with 2008 seeing prices rises by 9.1% as compared with 3.6% for the overall CPI inflation rate. Over the past 5 years, food and non-alcoholic beverage inflation has typically been running at an annual rate of 5% while overall consumer price inflation has been running at 2.8%.
If we now focus on food alone, we find an annual rate of food price inflation in December of 5.7%. While this is a little lower than with the inclusion of non-alcoholic beverages, it is nonetheless a full 2 percentage points above the overall CPI inflation rate. Across the year as a whole food price inflation comes in bang on 3% highlighting the extent of the inflationary pressures in more recent months. This, however, still falls some way short of the pressures seen in 2008 when food prices rose by 10.1%. If we drop to level 3 to focus on groups within the food category we find inflation rates for oils and fats of 11%, for fish of 9% and for fruit of 8.6%.
Within the 12 broad groups the highest annual rate of price inflation is currently to be found for transport where the annual rate of price inflation in December was 6.5%. Across 2010, transport prices rose by 8.3% which compares a tad unfavourably with the 0.8% increase seen in 2009. If we drop down to the level 3 groups within this category we can trace the source of the price pressures more readily. The cost of air passenger transport in December was up over 12 months by 13.5% and, you may not be surprised to learn, the cost of fuel and lubricants was up by 12.9%.
We finish by noting the only level 1 category to see prices fall across 2010: clothing and footwear. This product group saw prices fall by 1% in 2010. But, even here price pressures have emerged. Between April 1992 and August 2010 clothing and footwear consistently recorded annual rates of price deflation. Since September this has ceased with positive annual rates of inflation. The annual rate of inflation for clothing and footwear in December was estimated at 1.5%. Perhaps those socks in my bottom drawer really will have to last me just a little bit longer!
Articles
Inflation is a blip says Bootle BBC News (21/1/11)
Fuel prices could rise by 4p in April BBC News (22/1/11)
Paul Lewis: Why inflation is starting to buy BBC News (20/1/11)
High levels of inflation remains a worry for Beijing BBC News (20/1/11)
Inflation ‘biggest money worry for families’ BBC News (19/1/11)
UK inflation rate rises to 3.7% BBC News (18/1/11)
Inflation hysterics Financial Times (19/1/11)
Top investors raise alarm on inflation Financial Times, Richard Milne, Dan McCrum and Robert Cookson (21/1/11) )
Inflation hits 3.7% after record monthly increase Guardian UK, Graeme Wearden (18/1/11)
We knew inflation would be bad, but not this bad Guardian, Larry Elliott (18/1/11)
The mystery of clothes inflation and the formula effect The Economist (21/1/11)
Data
Latest on inflation Office for National Statistics (18/1/11)
Consumer Price Indices, Statistical Bulletin, March 2010 Office for National Statistics (18/1/11)
Consumer Price Indices, Time Series Data Office for National Statistics
For CPI (Harmonised Index of Consumer Prices) data for EU countries, see:
HICP European Central Bank
Questions
- Describe the process of compiling the Consumer Price Index (CPI). Are we comparing the cost of the same basket of goods and services across years? What about within a given year? (Further details are available in Consumer Price Indices – A Brief Guide).
- Explain the difference between an increase in the level of prices and an increase in the rate of price inflation. Can the rate of price inflation fall even if price levels are rising? Explain your answer.
- Why do you think policy-makers, such as the Monetary Policy Committee, would be interested in the inflation rates within the overall CPI inflation rate?
- What factors do you think lie behind the pressures on; (i) food prices; (ii) clothes prices; and (iii) transport prices? How would your answers help to inform how you would vote on interest rates if you were on the Monetary Policy Committee?
- The following are the consumer price index values for all items, food and non-alcoholic beverages, clothing and footwear and transport in 1988, 2009 and 2010. Use these values to calculate the percentage change between 1988 and 2010 and those between 2009 and 2010. Comment on your findings.
All items: 1988= 63.5; 2009= 110.8; 2010= 114.5
Food and non-alcoholic beverages: 1988= 68.2; 2009= 123.2; 2010= 127.4
Clothing and footwear: 1988= 163.8; 2009= 79.6; 2010= 78.8
Transport: 1988= 55.4; 2009= 112.7; 2010= 122.1
- How serious an economic issue do you think inflation is? Illustrate your answer drawing on real-world examples of the impact of inflation.
The recession caused a large rise in unemployment in many countries. In the USA the rise has been particularly steep, where unemployment now stands at 14.5 million, or 9.8% of the labour force. Unemployment has continued to rise despite renewed growth in the US economy, where the latest annual real GDP growth is 2.6% (measured in Q3 2010). The rise in unemployment has been blamed on ‘sticky wages’ – i.e. the reluctance of wage rates to fall.
But are wages genuinely sticky as far as the average worker is concerned? They may be in many specific jobs with specific employers, but many workers made redundant then find work in different jobs at lower rates of pay. For them, their wage has fallen, even if particular jobs are paying the same as before.
So what are the consequences of this? Does the willingness of workers to accept lower paid jobs mean that the labour market is flexible and that people will thus price themselves into work? If so, why is employment still rising? Or does a reduction in real wages for many people dampen spending and hence aggregate demand, thereby reducing the demand for labour? If so, why is GDP rising?
The following articles look at the apparent stickiness of wages and the implications for the labour market and the macroeconomy.
Articles
Downturn’s Ugly Trademark: Steep, Lasting Drop in Wages Wall Street Journal, Sudeep Reddy (11/1/11)
The Causes of Unemployment Seeking Alpha, Brad DeLong (13/1/11)
Sticky, sticky wages The Economist blogs: Free Exchange, R.A. (11/1/11)
The Causes of Unemployment New York Times blogs: Wonkish, Paul Krugman (16/1/11)
America’s union-bashing backlash Guardian, Paul Harris (5/1/11)
Data
Federal Reserve Economic Data: FRED Federal Reserve Bank of St. Louis (US macroeconomic datasets)
United States GDP Growth Rate Trading Economics
US unemployment statistics Bureau of Labor Statistics
Questions
- Why might nominal wages be sticky downwards in specific jobs in specific companies?
- Why might nominal average wages in the economy not be sticky downwards?
- Why is unemployment rising in the USA?
- Why might there be a problem of hysteresis in the USA that provides an explanation of the reluctance of unemployment to fall?
- Why might a fall in wages end up being contractionary?
- What lessons can be learned from the Great Depression about cures for unemployment?
- How might unemployment be brought down in the USA?
- Why may making wages somewhat more flexible, as opposed to perfectly flexible, not be a good thing?
One of the interesting things about the recent recession was the dilemma that it posed for governments. As aggregate demand fell, unemployment rose, incomes fell, which reduced demand further and so national output began to decline. Obviously there were many other factors contributing to this decline, in particular the housing market, but the long and the short of it is, aggregate demand was falling. With the AD curve shifting inwards, we would expect the average price level to fall at the same time: i.e. inflation doesn’t tend to be much of a problem during a recession. It is this fact that posed something of a dilemma. In the recession, not only was aggregate demand low, but inflation was rising. The explanation for this: in large part due to rising commodity prices – a supply-side shock. Governments had to deal with low national output and inflation: this combination made policy changes much more complex.
While prices for many goods and commodities did fall significantly after their peak in 2008, there has been a gradual rise again and there seems to be no end in sight. Headline food prices, in particular, have increased almost to their 2008 levels, although in real terms prices are still lower. Onions in India; cabbage, pork and mackerel in South Korea; chillies in Indonesia – the list goes on. The rapidly rising prices of these basic foodstuffs has, in many cases, led to emergency government intervention. However, there are fewer concerns this time round, as many hope that the causes of these higher prices are not just the increases in demand but crucially temporary supply shocks. Bloomberg’s Businessweek Assistant Managing Editor, Sheelah Kolhatkar, said:
There are a lot of reasons [for rising prices]. Weather is cited as a big one. There’s been sort of freak weather in different parts of the world. Russia experienced a drought. There are floods in Australia. There’s been sort of freezing weather in Florida. Our own Midwest experienced flooding earlier this year. And because the market for a lot of these food commodities is global, when something strange happens somewhere, that can affect a crop.
On the other hand, there are growing concerns at the timing of this inflation: the developed world has barely escaped from recession. How is it that inflation can already be a problem? Furthermore, with loose monetary policy in many countries, rising food and commodity prices could continue for some time.
An interesting question to consider is which countries will be affected the most? In Britain, like other developed countries, food consumption accounts for between 15 and 20 per cent of a household budget. However, in developing countries, food can take up between 50 and 75 per cent of a houshold budget, so any rise in food prices is disastrous.
What does it mean for the recovery? Well, if food (a necessity) is increasing in price, households have little choice but to pay the higher prices. This means they have less disposable income for other goods, hence aggregate demand may be adversely affected. The following articles will hopefully give you some ‘food for thought’!
Articles
Soaring food prices cast shadow over trading Financial Times, Dave Shellock (14/1/11)
Next shock will be high food prices Sydney Morning Herald (17/1/11)
Commodities can still shock BBC News blogs, Stephanomics, Stephanie Flanders (13/1/11)
Many countries face catastrophe as inflation creeps up the food chain Independent, Hamish McRae (16/1/11)
Soaring demand soaks food oil reserves Sydney Morning Herald, Luzi Ann Javier (17/1/11)
Government to subsidise essential food items Sunday Observer, Gammi Warushamana (16/1/11)
Brace for higher food prices Jamaica Observer, Julia Richardson (16/1/11)
Jordanians protest against soaring food prices Guardian, Johnny McDevitt (15/1/11)
Inflation, the old enemy, is back. But this is no time to be frightened Guardian, Larry Elliott (16/1/11)
Global effort to calm food prices Washington Post, Steve Mufson (15/1/11)
The link between commodity prices and Monetary Policy Seeking Alpha (14/1/11)
Australian floods bost commodity prices, shares and funds Telegraph, Ian Cowie (13/1/11)
Soaring cost of oil and food will result in turmoil Belfast Telegraph Hamish McRae (18/1/11)
Q&A: Why food prices and fuel costs are going up BBC News (14/1/11)
Data
Commodity Prices Index Mundi
Questions
- What is the difference between headline food prices and real prices?
- What are the demand-side factors causing food prices to increase?
- What factors have affected the supply-side of the food market? Use a diagram to illustrate both the demand and supply-side factors.
- Can you identify some of the key differences between the causes of the rising food prices in 2008 and the rising food prices we’re seeing at the moment?
- Who are the winners and losers of rising food prices?
- What methods of government intervention are available to stabilise prices? Are they likely to be efficient and equitable?
- How is the exchange rate affecting food prices?
- Why could a loose monetary policy make food price inflation even worse?
- What are the main consequences of rising food and commodity prices? Think about the impact on different groups within society.
Bank rate in the UK has been at the historically low level of 0.5% since March 2009 and the MPC decision on 13 January was to leave the rate unchanged (see also). But inflation has been well above the Bank of England’s target of 2% since December 2009 and it could well rise further as international commodity prices are soaring. Some economists are thus arguing that Bank rate should rise. This is crucial, they say, to dampen inflationary expectations.
Other economists, however, argue that aggregate demand is likely to remain depressed and that the economy is operating with a large negative output gap. What is more, house prices are falling, as are real wages (see Bosses gain – workers’ pain)
In the following extract from BBC Radio 4’s Today Programme, two economists, Charles Goodhart and Willem Buiter, both former members of the MPC, debate the issue.
Podcast
Should interest rates rise? BBC Today Programme (13/1/11)
Data
Economic and Labour Market Review, Office for National Statistics (For inflation data see Tables Chapter 3, Table 3.01; for interest rates see Tables Chapter 5, Table 5.08)
Monetary Policy Committee Decisions Bank of England
Questions
- What are the arguments for a rise in Bank rate at the current time?
- What are the arguments against a rise in Bank rate at the current time?
- What information would you require to decide which of the arguments was the more powerful?
- Why is it difficult to decide the size of the output gap?
- To what extent do the arguments for and against a rise in Bank rate depend on the factors determining expectations, and what expectations are important here?
- To what extent are exchange rates relevant to the effectiveness of interest rate policy?
It is the Bank of England’s responsibility to ensure that inflation remains on target. They use interest rates and the money supply to keep inflation within a 1% band of the inflation target set by the government = 2%. However, for the past 12 months, we have had an inflation rate above the 3% maximum and this looks set to continue. Official figures show that the CPI inflation rate has risen to 3.3% in November, up from 3.2% in October 2010 – above the inflation target. There was also movement on the RPI from 4.5% to 4.7% during the same months. The ONS suggests that this increase is largely down to record increases in food, clothing and furniture prices: not the best news as Christmas approaches. It is not just consumers that are facing rising prices, as factories are also experiencing increasing costs of production, especially with the rising cost of crude oil (see A crude story). Interest rates have not changed, as policymakers believe prices will be ‘reined in’ before too long.
However, the government expects inflation to remain above target over the next year, especially with the approaching increase in VAT from 17.5% to 20%. As this tax is increased, retail prices will also rise and hence inflation is likely to remain high. There is also concern that retailers will use the increase in VAT to push through further price rises. A report by KPMG suggests that 60% of retailers intend not only to increase prices to cover the rise in VAT, but to increase prices over and above the VAT rise.
Despite the planned VAT rise spelling bad news for inflation, it could be the spending cuts that offset this. As next year brings a year of austerity through a decrease in public spending, this could deflate the economy and hence bring inflation back within target. However, there are suggestions that more quantitative easing may be on the cards in order to stimulate growth, if it appears to be slowing next year. The Bank of England’s Deputy Governor, Charles Bean said:
“It is certainly possible that we may well want to undertake a second round of quantitative easing if there is a clear sign that UK output growth and with it inflation prospects are slowing,” Bean told a business audience in London.”
The following articles consider the rising costs experienced by firms, the factors behind the inflation and some of the likely effects we may see over the coming months.
Articles
UK inflation rises to a surprise six-month high The Telegraph, Emma Rowley (14/12/10)
UK inflation rate rises to 3.3% in November BBC News (14/12/10)
Inflation unexpectedly hits 6-month high in November Reuters, David Milliken and Christina Fincher (14/12/10)
Food and clothing push up inflation Associated Press (14/12/10)
Retailers ‘to increase prices by more than VAT rise’ BBC News (14/12/10)
VAT increase ‘will hide price rises’ Guardian, Phillip Inman (14/12/10)
Slower growth may warrant more QE Reuters, Peter Griffiths and David Milliken (13/12/10)
Factories feel squeeze of inflation The Telegraph, Emma Rowley (13/12/10)
Figures show rise in input prices The Press Association (13/12/10)
November producer input prices up more than expected Reuters (13/12/10)
Data
Inflation ONS
Inflation Report Bank of England
Questions
- What is the difference between the RPI and CPI? How are each calculated?
- Why are interest rates the main tool for keeping inflation on target at 2%? How do they work?
- Is the inflation we are experiencing due to demand-pull or cost-push factors? Illustrate this on diagram. How are expectations relevant here?
- Explain why the rise in VAT next year may make inflation worse – use a diagram to help your explanation.
- Explain the process by which rising prices of crude oil affect manufacturers, retailers and hence the retail prices we see in shops.
- How are the inflation rate, the interest rate and the exchange rate linked? What could explain the pound jumping by ‘as much as 0.2pc against the dollar after the report’ was released?
- Explain why the public spending cuts next year may reduce inflation. Why might more quantitative easing be needed and how could this affect inflation in the coming months?