The output gap is defined as ‘the difference between actual and potential output.’ When actual output exceeds potential output, the gap is positive. When actual output is less than potential output, the gap is negative. The size of the output gap traces the course of the business cycle. In the current recession, the output gap is negative in all major economies. The worry in recent months has been that a persistent large negative gap could lead to a downward deflationary spiral. Evidence is emerging, however, that the recession may be bottoming out and the danger of deflation easing. But just how big is the current negative output gap? As the article below from The Economist states, “Estimating how big the output gap is, and how much of a deflationary threat it still poses, is not easy.”
So how is the output gap measured in practice? How do we measure ‘potential output’? The two articles consider this issue of measurement and the relationship between the output gap and the rate of inflation. The last two links are to data sources giving estimates of the output gap. The first is from the European Commission and the second is from the OECD. As you will see, there are differences in their estimates.
Put out: Uncertainty over the size of the output gap complicates the task of central banks The Economist (2/7/09)
How big is the output gap? FRBSF Economic Letter (12/6/09)
See also:
Box 1.3.2 on page 31 and Table 13 on page 140 of European Economy: Economic Forecast, Spring 2009 European Commission, Economic and Financial Affairs (From the above link, click on the little ‘en’ symbol.)
and: Table 10 from OECD Economic Outlook No. 85, June 2009 OECD (From the above link, click on ‘Demand and output’. The first 10 tables then download as an Excel file.)
Questions
- Why is it difficult to measure potential output? (See both The Economist article and Box 1.3.2 from the European Economy: Economic Forecast, Spring 2009.)
- What is meant by the ‘NAIRU’? Why may it have risen during the recession? How would you set about estimating the value of the NAIRU?
- How might you infer the size of the output gap from the behaviour of inflation?
- Plot the output gap for two countries of your choice using data from both the European Economy and the OECD Economic Outlook for the years 2004 to 2010. Discuss the differences between (a) the two plots for each country and (b) the two countries.
The global economy has been in a recession since December 2007, but have we now passed the worst of it? Whilst companies are still going bankrupt, unemployment is still rising, the housing market is still looking pretty gloomy and government debt surely can’t go up anymore, there are indications that we’ve reached the bottom of the recession. There are murmurs that the economy may start to recover towards of the end of the year.
But, of course, economics wouldn’t be economics if there wasn’t considerable disagreement. Many still believe that the worst is yet to come. According to the OECD, the recession is ‘near the bottom’. Yet, output in the UK is still set to decline by 4.3% in 2009, and by 2010 the budget deficit is predicted to have grown to 14%. Unemployment is at its highest since November 1996, but US consumer confidence is said to be rising and the pound is climbing. Read these articles and make up your mind about the state of the UK and global economy!!
Business and Consumer Surveys (After following link, click on chart) European Commission, Economic and Financial Affairs (29/6/09)
Pound climbs against euro as King sees signs recession easing Bloomberg, Lukanyo Mnyanda, Gavin Finch (20/6/09)
Bank says banking crisis easing BBC News (25/6/09)
First signs of optimism returning to some parts of financial services CBI PRess Release (29/6/09)
Darling and King agreed on tentative recovery Guardian, Ashley Seager (17/6/09)
Sharp contration for UK economy BBC News (30/6/09)
Housing market knocked by price falls Moneywise (22/6/09)
OECD says recession ‘near bottom’ BBC News, Steve Schifferes (24/6/09)
US Federal Reserve says recession is ‘easing’ Telegraph, James Quinn (24/6/09)
Public borrowing at record levels BBC News (18/6/09)
Leading index suggests recession easing UPI.com (18/6/09)
US consumer confidence up in June BBC News (26/6/09)
Blow for housing market as prices fall The Independent, David Prosser (22/6/09)
Most UK businesses freeze pay as recession bites, CBI says Telegraph, Peter Taylor (23/6/09)
Questions
- What are the typical characteristics of a recession? Do the current statistics of the four main macroeconomic objectives fit in with what economic theory tells us?
- Which policies would governments normally implement to get a economy into the expansionary/recovery phase of the business cycle and how do they work?
- Why is consumer confidence so key to economic recovery?
- What type of banking regulation is needed to prevent a similar crisis happening again?
- Movements in the housing market are often seen as indicators of the state of the economy. Why is this?
The traditional macroeconomic issues are well-known: unemployment, inflation, economic growth and the balance of payments. However, the environment, and specifically climate change, have become increasingly important objectives for the global economy. Over recent months, many countries have announced new policies and measures to tackle climate change.
The costs of not tackling climate change are well-documented, but what about the costs of actually tackling it? Why is a changing climate receiving such attention and what are the economics behind this problem? The articles below consider this important issue.
Tougher climate target unveiled BBC News (16/10/08)
Brown proposes £60 billion climate fund BBC News (26/6/09)
EU says tackling climate change will cost global economy €400 billion a year Irish Times, Frank McDonald (26/6/09)
Obama makes 11th-hour climate change push Washington AFP, Ammenaul Parisse (25/6/09)
UK to outline emission cut plans BBC News (26/6/09)
What’s new in the EU: EU examines impact of climate change on jobs The Jerusalem Post, Ari Syrquin (25/6/09)
Climate change: reducing risks and costs The Chronicle Herald, Jennifer Graham (25/6/09)
Obama to regulate ‘pollutant’ CO2 BBC News (17/4/09)
Billions face climate change risk BBC News (6/5/07)
Obama vows investment in science BBC News (27/4/09)
Japan sets ‘weak’ climate target BBC News (10/6/09)
Questions
- Why is climate change an example of market failure?
- Apart from imposing limits on emissions, what other interventionist policies could be used? What are the advantages and disadvantages of each of them?
- According to the EU, the cost of tackling climate change is very high. So, why are we doing it? See if you can carry out a cost-benefit analysis!
- Why is climate change presenting a problem for insurance companies? Can it be overcome?
- Why is finance such an issue between developed and developing countries in relation to tackling climate change?
- What is the likely impact of climate changing policies on the labour market? Will we be able to adapt in the current economic crisis?
The early part of the current recession, dating from April 2008, had much in common with the Great Depression dating from June 1929. But the Great Depression lasted three years. So does this grim prospect await the world this time round? Or have we learned the lessons of the past and will the policies of giving economies a large fiscal stimulus, combined with bank rescues and quantitative easing, help to pull the world out of recession this year? The following articles look at the issues.
The recession tracks the Great Depression Martin Wolf, Financial Times (16/6/09)
A Tale of Two Depressions Barry Eichengreen, Kevin H. O’Rourke, Vox (4/6/09)
Economics: How the world economy might recover its poise Financial Times (15/6/09)
Weak recovery in sight but damage from crisis likely to be long-lasting, says OECD OECD (24/6/09)
OECD sees strongest outlook since 2007 Financial Times (24/6/09)
Press Release Board of Governors of the US Federal Reserve System (24/6/09)
You might also like to watch the following two videos. The first uses historical footage to examine the Wall Street Crash of 1929 and the Great Depression that followed. The second is an interview with Joseph Stiglitz about whether the recession of 2008/9 is heading for another Great Depression.
The 1929 Crash (1 of 6) Nibelungensohn, YouTube (27/2/09). Note that you can link to the other five parts of this from this link.
Joseph Stiglitz: ‘This is worse than the Great Depression’ NBC Nightly News (10/2/09)
Questions
- Why may the past be a poor guide to the present and future?
- What dangers are there from the policies of expanding aggregate demand through fiscal and monetary policies?
- Explain why the ‘race to full recovery is likely to be long, hard and uncertain.
Many industries are struggling in the current climate and, in particular, car sales have been at an all time low. General Motors was the biggest car company in the world, but recently we have seen them becoming the biggest industrial bankruptcy, which will have consequences for many car manufacturers around the world. UK car sales were 25% lower in May 2009 than at the same time last year and Chrysler will sell most of their assets to Fiat when they form a strategic alliance in a bid to help them exit bankruptcy protection.
The troubles of the carmakers have passed up the production chain to automotive suppliers, component manufacturers and engineering firms, and down the chain to the dealerships at a time when consumer confidence has taken a knock. The following articles look at some of the recent developments in the car industry and consider their likely economic impact.
UK new car sales 25% lower in May BBC News (4/6/09)
Creditors cry foul at Chrysler precedent The Wall Street Journal, Ashby Jones, Mike Spector (13/6/09)
The decline and fall of General Motors The Economist (4/6/09)
GM pensioner’s fears for future BBC News (1/6/09)
Opel staff face wait for job news BBC News (2/6/09)
From biggest car maker to biggest bankruptcy BBC News (1/6/09)
GM sales executive lays out company’s direction Chicago Tribune, Bill Vidonic (14/6/09)
Chrysler and Fiat complete deal BBC News (10/6/09)
Fiat gambles on Chrysler turnaround Telegraph, Roland Gribben (1/6/09)
Obama taskforce faces Congress over car industry rescue Times Online, Christine Seib (10/6/09)
Has pledge of assistance revved up the car industry? EDP24, Paul Hill (10/6/09)
Questions
- What is a strategic alliance and how should it help Chrysler?
- What are some of the methods that governments have used to help stimulate the car industry? Consider their advantages and disadvantages.
- Think about the consequences beyond the car industry of the decline of General Motors. Who is likely to suffer? Will there be any winners?
- General Motors was established in 1908. How were they able to expand so quickly and what do you think are the main reasons for their current decline?
- The article in The Economist suggests that, despite the current problems in the car industry and the global recession, selling cars will never really be a problem. What do you think are the reasons for this?