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Posts Tagged ‘supply side’

A bridge to somewhere

Many politicians throughout the world,
not just on the centre and left, are arguing for increased spending on infrastructure. This was one of the key proposals of Donald Trump during his election campaign. In his election manifesto he pledged to “Transform America’s crumbling infrastructure into a golden opportunity for accelerated economic growth and more rapid productivity gains”.

Increased spending on inffrastructure has both demand- and supply-side effects.

Unless matched by cuts elsewhere, such spending will increase aggregate demand and could have a high multiplier effect if most of the inputs are domestic. Also there could be accelerator effects as the projects may stimulate private investment.

On the supply side, well-targeted infrastructure spending can directly increase productivity and cut costs of logistics and communications.

The combination of the demand- and supply-side effects could increase both potential and actual output and reduce unemployment.

So, if infrastructure projects can have such beneficial effects, why are politicians often so reluctant to give them the go-ahead?

Part of the problem is one of timing. The costs occur in the short run. These include demolition, construction and disruption. The direct benefits occur in the longer term, once the project is complete. And for complex projects this may be many years hence. It is true that demand-side benefits start to occur once construction has begun, but these benefits are widely dispersed and not easy to identify directly with the project.

Then there is the problem of externalities. The external costs of projects may include environmental costs and costs to local residents. This can lead to protests, public hearings and the need for detailed cost–benefit analysis. This can delay or even prevent projects from occurring.

The external benefits are to non-users of the project, such as a new bridge or bypass reducing congestion for users of existing routes. These make the private construction of many projects unprofitable, except with public subsidies or with public–private partnerships. So there does need to be a macroeconomic policy that favours publicly-funded infrastructure projects.

One type of investment that is less disruptive and can have shorter-term benefits is maintenance investment. Maintenance expenditure can avoid much more costly rebuilding expenditure later on. But this is often the first type of expenditure to be cut when public-sector budgets as squeezed, whether at the local or national level.

The problem of lack of infrastructure investment is very much a political problem. The politicians who give the go-ahead to such projects, such as high-speed rail, come in for criticisms from those bearing the short-run costs but they are gone from office once the benefits start to occur. They get the criticism but not the praise.

Articles
Are big infrastructure projects castles in the air or bridges to nowhere? The Economist, Buttonwood’s notebook (16/1/17)
Trump’s plans to rebuild America are misguided and harmful. This is how we should do it. The Washington Post, Lawrence H. Summers (17/1/17)

Questions

  1. Identify the types of externality from (a) a new high-speed rail line, (b) new hospitals.
  2. How is discounting relevant to decisions about public-sector projects?
  3. Why are governments often unwilling to undertake (a) new infrastructure projects, (b) maintenance projects?
  4. Is a programme of infrastructure investment necessarily a Keynesian policy?
  5. What accelerator effects would you expect from infrastructure investment?
  6. Explain the difference between the ‘spill-out’ and ‘pull-in’ effects of different types of public investments in a specific location. Is it possible for a project to have both effects?
  7. What answer would you give to the teacher who asked the following question of US Treasury Secretary, Larry Summers? “The paint is chipping off the walls of this school, not off the walls at McDonald’s or the movie theatre. So why should the kids believe this society thinks their education is the most important thing?”
  8. What is the ‘bridge to nowhere’ problem? Why does it occur and what are the solutions to it?
  9. Why is the ‘castles in the air’ element of private projects during a boom an example of the fallacy of composition?
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The route to recovery: alternative paths

With an election approaching, there is much debate about recovery and cuts and about the relationships between the two. Will rapid cuts stimulate confidence in the UK by business and bankers and thereby stimulate investment and recovery, or will they drive the economy back into recession? The debate is not just between politicians vying for your vote; economists too are debating the issue. Many are taking to letter writing.

In the February 2010 news blog, A clash of ideas – what to do about the deficit, we considered three letters written by economists (linked to again below). There has now been a fourth – and doubtless not the last. This latest letter, in the wake of the Budget and the debates about the speed of the cuts, takes a Keynesian line and looks at the sustainability of the recovery – including social and environmental sustainability. It is signed by 34 people, mainly economists.

Letter: Better routes to economic recovery Guardian (27/3/10)
Letter: UK economy cries out for credible rescue plan Sunday Times, 20 economists (14/2/10)
Letter: First priority must be to restore robust growth Financial Times, Lord Skidelsky and others (18/2/10)
Letter: Sharp shock now would be dangerous Financial Times, Lord Layard and others (18/2/10)

Questions

  1. Summarise the arguments for making rapid cuts in the deficit.
  2. Summarise the arguments for making gradual cuts in the deficit in line with the recovery in private-sector demand.
  3. Under what conditions would the current high deficit crowd out private expenditure?
  4. What do you understand by a ‘Green New Deal’? How realistic is such a New Deal and would there be any downsides?
  5. Is the disagreement between the economists the result of (a) different analysis, (b) different objectives or (c) different interpretation of forecasts of the robustness of the recovery and how markets are likely to respond to alternative policies? Or is it a combination of two of them or all three? Explain your answer.
  6. Why is the effect of the recession on the supply-side of the economy crucial in determining the sustainability of a demand-led recovery?
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A clash of ideas – what to do about the deficit

On February 14, the Sunday Times published a letter by 20 eminent economists calling on the next government to cut the public-sector deficit more rapidly than that planned in last December’s pre-Budget report.

In order to minimise this risk and support a sustainable recovery, the next government should set out a detailed plan to reduce the structural budget deficit more quickly than set out in the 2009 pre-Budget report.

The exact timing of measures should be sensitive to developments in the economy, particularly the fragility of the recovery. However, in order to be credible, the government’s goal should be to eliminate the structural current budget deficit over the course of a parliament, and there is a compelling case, all else being equal, for the first measures beginning to take effect in the 2010-11 fiscal year.

Then on 18 February the Financial Times published two letters, between them from more than 60 economists, backing Alistair Darling’s policy of delaying cuts until the recovery is firmly established. They openly disagreed with the 20 economists who wrote to the Sunday Times.

… while unemployment is still high, it would be dangerous to reduce the government’s contribution to aggregate demand beyond the cuts already planned for 2010-11 (which amount to 1 per cent of gross domestic product). Further immediate cuts – even supposing they are practicable – would not produce an offsetting increase in private sector aggregate demand, and could easily reduce it. History is littered with examples of premature withdrawal of the government stimulus, from the US in 1937 to Japan in 1997. With people’s livelihoods at stake, a responsible government should avoid reckless actions.

… A sharp shock now would not remove the need for a sustained medium-term programme of deficit reduction. But it would be positively dangerous. If next year the government spent less and saved more than it currently plans, this would not “make a sustainable recovery more likely”. The weight of evidence points in the opposite direction.

So why do such eminent economists have apparently such divergent views on tackling the public-sector deficit? Is there any common ground between them? What does the disagreement imply about the state of macroeconomics? Read the letters and articles and then try answering the questions.

Tories right on cuts, say economists Sunday Times, David Smith (14/2/10)
Letter: UK economy cries out for credible rescue plan Sunday Times, 20 economists (14/2/10)
Economists reject calls for budget cuts Financial Times, Jean Eaglesham and Daniel Pimlott (18/2/10)
Letter: First priority must be to restore robust growth Financial Times, Lord Skidelsky and others (18/2/10)
Letter: Sharp shock now would be dangerous Financial Times, Lord Layard and others (18/2/10)
Economists urge swift action to reduce budget deficit BBC News (14/2/10)
Economists back delay on government spending cuts BBC News (19/2/10)
Economists back delay on government spending cuts BBC News (19/2/10)
Men of letters III BBC News blogs: Stephanomics, Stephanie Flanders (19/2/10)
Daily View: When to cut spending? (including podcast) BBC News blogs, Clare Spencer (19/2/10)
Cautious economists and cutters battle it out in print Guardian (20/2/10)
The great economics rift reopens Guardian, Gavyn Davies (19/2/10)
Focus on growth. Don’t argue about cuts Times Online, Eamonn Butler (20/2/10)
Recession’s ruins hide plenty of spare capacity Sunday Times, David Smith (14/2/10)

Questions

  1. To what extent is the disagreement between the two sets of economists largely one of the timing of the cuts?
  2. Is the disagreement the result of (a) different analysis, (b) different objectives or (c) different interpretation of forecasts of the robustness of the recovery and how markets are likely to respond to alternative policies? Or is it a combination of two of them or all three? Explain your answer.
  3. How would new classical economists respond to the Keynesian argument that it is necessary to focus on aggregate demand if the economy is to experience a sustained recovery?
  4. How would Keynesian economists respond to the argument that rapid cuts will reassure markets and allow private-sector recovery to more than compensate for reduced public-sector activity?
  5. Why is the effect of the recession on the supply-side of the economy crucial in determining the sustainability of a demand-led recovery?
  6. Distinguish between the cyclical and structural deficits. How would the policies advocated by the two groups of economists impact on the structural deficit?
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The Blair economic legacy

Now that Tony Blair has announced that he is to step down as Prime Minister, the media has started to consider his legacy. The two articles focus on the economic legacy. While the BBC one is quite factual in its approach, the article by Larry Elliott from the Guardian is less complementary about his legacy.

The business of Tony Blair’s decade BBC News Online (10/05/07)
Blair’s legacy: a fantasy island trying to live beyond its means at every level Guardian (14/05/07)
Blair’s economic record (video) BBC News Online (10/05/07)


Questions
1. Explain why Larry Elliott considers that we are living on a ‘fantasy island’.
2. Explain the main economic changes that have been implemented during Tony Blair’s time in office.
3. Discuss the extent to which the economic situation has improved under Tony Blair for (a) firms and (b) consumers.
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