Category: Economics: Ch 21

The current recession has seen the re-emergence of many of the intellectual battles fought amongst economists between the two worlds wars and again from the 1960s to the 1980s. The current debate has hinged around the appropriate policy response to the current recession. Is the solution a Keynesian one of stimulating aggregate demand; or is it a new classical one of keeping public spending under control to make room for private spending and to allow the market to function to best effect? And what about banking reform? What are the arguments here? The following articles by Lord Skidelsky examine the debate.

Robert Skidelsky, Economists clash on shifting sands Financial Times (9/6/09)
Robert Skidelsky, Economic reform needs a dose of reality Guardian (27/7/09)

See also the following video:
Robert Skidelsky, The financial challenge of our times Guardian (2/3/09)

Questions

  1. Explain the ways in which economics is (a) similar to and (b) different from the natural sciences.
  2. For what reasons would new classical economists criticise the fiscal stimulus packages pursued by many countries in the past few months?
  3. Under what circumstances would a fiscal stimulus crowd out private spending? Do these circumstances apply (a) today; (b) over the next two years?
  4. Why may crowding out in practice depend on issues of confidence?
  5. What ‘Keynesian lessons’ have been learned from the banking crisis and recession?

Preliminary figures for Quarter 2 UK GDP suggest that the UK economy has been declining faster than many had expected. Does this mean that the recession in the UK will be more prolonged, or can we expect a return to growth by the end of the year? How much does the outcome depend on policy decisions taken now and what should be done in terms of quantitative easing and other policy measures?

The answers to these questions depend to some extent on the reliability of the figures, which, after all, are only preliminary estimates. Past estimates have tended to understate the level of output and growth, but could the latest estimates understate the depth of the recession? The following articles look at the figures and their implications for policy. The two articles from The Economist look at the global context.

UK economy continues to contract BBC News (24/7/09)
Recession Britain Guardian (24/7/09)
‘Shocking’ GDP figures raise fears of long road to recovery Herald (25/7/09)
Hopes of early end to recession dashed Independent (25/7/09)
Treasury defiant on growth despite gloom over GDP Times Online (26/7/09)
UK GDP: What the economists say Guardian (24/7/09)
Hamish McRae: The GDP figures were profoundly gloomy … but they were wrong Independent (26/7/09)
The shrinking economy BBC News, Stephanomics (24/7/09)
Here comes August, the cruellest month of all Observer (26/7/09)
Rebalancing global growth: a long way to go Economist (23/7/09)
Unpredictable tides Economist (23/7/09)
Gross domestic product, Preliminary estimate, 2nd quarter 2009 Office for National Statistics, Statistical Bulletin (24/7/09)
Gross domestic product, Preliminary estimate, 4th quarter 2008 Office for National Statistics, Statistical Bulletin (24/7/09)

Questions

  1. What factors will determine whether the UK economy starts to growth again by the end of 2009?
  2. Plot the quarterly growth rate of GDP from 2007 Q1. Plot two lines on the same graph: one from the 2008 Q4 estimates and one from the 2009 Q2 estimates (see last two links above). How would you explain the discrepancies between the figures?
  3. What policy measures would you recommend to the Bank of England and the government in the light of the GDP estimates?
  4. ’The deeper and longer the recession, the more will potential (as well as actual) output fall.’ Do you agree with this statement? Explain your answer.
  5. Referring to the two Economist articles, what conditions are necessary for sustained long-term economic growth?

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

  1. 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.)
  2. 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?
  3. How might you infer the size of the output gap from the behaviour of inflation?
  4. 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.

Recent evidence from the Institute of Economic and Social Research shows that the UK economy grew in April and May and that 2009 Quarter 2 figures will also show a rise in output. Although annual growth in GDP will still be negative, as the previous three quarters were all negative, recent growth suggests that the recession might have ‘bottomed out’ and that recovery is beginning.

Of course, it’s early days to tell whether these are real ‘green shoots’ or whether the economy will slide back into negative growth once more, but confidence is returning. One sign of this is the recent appreciation of sterling (see). The following articles look the rise of the pound, why it is occurring and whether the green shoots will flourish or wither.

Pound hits 2009 high against euro BBC News (11/6/09)
Sterling: what’s the outlook now? Telegraph (11/6/09)
Sterling hits year’s high versus euro ThisIsMoney (11/6/09)
Sterling leaves euro in its wake on hopes of UK recovery The Herald (11/6/09)
Jeremy Warner: Recession may be over but not the pain Independent (11/6/09)
Taking stock of the different economic signals Times Online (11/6/09)

Questions

  1. Why has the pound been appreciating?
  2. What are the implications of an appreciation of the pound for the UK economy?
  3. Why is the dollar likely to fall as the prospects for the world economy brighten?
  4. What evidence is there that the UK economy is now beginning to recover? What will determine whether or not the recovery will be sustained?

Imagine putting together a dream team of economists to tackle the current recession. Who would you choose? Larry Elliott, the Guardian’s economics editor considers this game of ‘fantasy economics’ in the linked article below. In the process, he makes a number of criticisms of economists for saying little about what caused the current crisis and how such crises could be avoided in the future.

As students studying economics you might want to defend economists against this attack. After all, virtually every time you turn on the radio or television or open a paper, there are economists explaining what has happened and what should be done about it. So see if you can mount a defence against this attack – and maybe put together your own dream team of economists!

It’s a funny old game: where is the dream team of economists to tackle the slump? Guardian (1/6/09)

Profiles of many the economists referred to in Larry Elliott’s article can be found at the History of Economic Thought website. You can access this from the Sloman Hot Links tab above and then click on site C18.

Questions

  1. Explain why economies with deregulated financial markets are likely to experience macroeconomic instability (‘boom-bust cycles’).
  2. What are the benefits of studying perfectly competitive markets and general equilibrium theory?
  3. Write a brief defence of the use of mathematics in economics.
  4. Does experimental economics allow economists to take a ‘more nuanced and relevant approach’ to studying economic behaviour and devising appropriate policy?