Tag: risk

“As snow sweeps the country, the UK has coped in the way it usually does – with surprise, confusion and chaos.” Not only have the transport authorities in many areas struggled to cope, but individuals too have been caught out. Many have rushed to stock up on things such as blankets, fires, de-icing equipment and warming foods.

But why does Britain cope worse than many other countries? Should more resources be diverted into keeping roads, airports and rail lines open? And how have individuals responded? How much have they stocked up on a range of cold-weather items and why? The linked article looks at these issues?

Why can’t the UK deal with snow? EU Infrastructure, Timon Singh (6/1/10)

Questions

  1. Does it make economic sense for the UK to invest relatively little in snowy-weather infrastructure?
  2. How should a local authority decide whether or not to (a) buy an additional gritting lorry; (b) increase its stock piles of grit? How would risk attitudes affect the decision?
  3. Why might a lower proportion of people get to work in the recent snowy weather than in equivalent weather 20 years ago?
  4. How might you define a ‘thermal elasticity of demand’ for a product, where the determinant of demand is the temperature?
  5. What factors determine the thermal elasticity of demand for a product? How is the short-term elasticity likely to be different from the longer-term elasticity and why?
  6. What would you need to include in measuring the full social costs to the economy of the cold spell?

In these news blogs, we’ve considered a Tobin tax on a number of occasions: see A Tobin tax – to be or not to be? and Tobin’s nice little earner. On 10 December 2009, the Treasury published a discussion document, Risk, reward and responsibility: the financial sector and society. This, amongst other things, considers the case for a financial transactions tax – a form of Tobin tax. As Box 4.A on page 35 states:

“James Tobin’s original proposal for a transaction tax was to tax foreign exchange transactions. The purpose of the tax was to tackle excessive exchange rate fluctuation and speculation on currency flows, as Tobin felt that short-term movements in capital flows could severely limit the ability of governments and central banks to follow appropriate domestic policies for their economies.

However, the recent crisis has shown that there is considerable risk inherent in other financial markets. In some of these markets trading volumes have also grown enormously compared to the value of underlying assets. As set out above, instability may result from these markets due to the complex nature of counterparty networks and a lack of transparency, and the transmission of financial shocks through the system.

Recent attention has therefore focused on a broader tax on financial transactions – potentially, this would include trading in a wide range of instruments, currently traded both on and off-exchange.”

The goverment in the UK has recently taken one step in increasing taxes on the financial sector. In its 2009 pre-Budget report, delivered on 9 December (see Cutting the deficit and tackling the recession. Incompatible goals?), a new tax on bank bonuses was imposed. The rate is 50% on bonuses over £25,000. Since then a similar tax has been imposed in France and Germany’s Chancellor, Angela Merkel, said that she found it a ‘charming idea’, although probably not practical under German law. She did support, however, the use of a Tobin tax on financial transactions, similar to the one being considered in the UK. Such a tax, to be effective, would ideally have to be imposed worldwide, but at least by a large number of countries.

So is the case for a Tobin tax gathering momentum? The following video podcast considers the tax’s aims, effectiveness and practicality – as do the articles.

Video podcast
Radical Tobin Tax proposal could go mainstream BBC Newsnight, Paul Mason (10/12/09)

Articles
Now’s the time for a Tobin tax Guardian, George Irvin (11/12/09)
EU leaders urge IMF to consider Tobin tax Financial Times, Tony Barber and George Parker (11/12/09)
We can always get to Utopia – even from here Irish Times, Paul Gillespie (12/12/09)
HM Treasury makes case for Tobin tax City A.M., Julia Kollewe (11/12/09)
The Tobin Tax – a brief history Telegraph (8/11/09)
European Union presses IMF to consider Tobin tax Telegraph (11/12/09)

Questions

  1. How do current proposals for a Tobin tax differ from Tobin’s original proposals (see Sloman and Wride, Economics 7th edition, pages 756–8 or Sloman and Hinde, Economics for Business 4th edition, pages 743–5)?
  2. Explain how a Tobin tax could be used to reduce destabilising speculation without preventing markets moving to longer-term equilibria.
  3. How might the use of a Tobin tax on financial transactions help to curb some of the ‘excessive rewards’ made from financial dealing?
  4. Examine the advantages and disadvantages of using a Tobin tax on financial transactions. How might the disadvantages be reduced?
  5. What considerations would need to be taken into account in setting the rate for a Tobin tax on financial transactions?

Should economists have foreseen the credit crunch? A few were warning of an overheated world economy with excessive credit and risk taking. Most economists prior to 2007/8, however, were predicting a continuation of steady economic growth. Inflation targeting, fiscal rules and increasingly flexible markets were the ingredients of this continuing prosperity. And then the crash happened!

So why did so few people see the downturn coming? Were the models used by economists fundamentally flawed, or was it simply a question of poor assumptions or poor data? Do we need a new way of modelling the economy, or is it simply a question of updating theories from the past? Should, for example, models become much more Keynesian? Should we abandon the new classical approach of assuming that markets are essentially good at pricing in risk and that herd behaviour will not be seriously destabilising?

The following podcast looks at these issues. “Aditya Chakrabortty’s joined in the studio by the Guardian’s economics editor Larry Elliott, as well as Roger Bootle, the managing director of Capital Economics, and political economist and John Maynard Keynes biographer Robert Skidelsky. Also in the podcast, we hear from Nobel prize-winning economist, Elinor Ostrom, Freakonomics author Steven Levitt, and UN advisor and developmental economist Daniel Gay.”

The Business: A crisis of economics Guardian podcast (25/11/09)

See also the following news items from the Sloman Economics news site:
Keynes is dead; long live Keynes (3/10/09)
Learning from history (3/10/09)
Macroeconomics – Crisis or what? (6/8/09)
The changing battle grounds of economics (27/7/09)
Repeat of the Great Depression – or learning the lessons from the past? (23/6/09)
Animal spirits (30/4/09)
Keynes – do we need him more than ever? (26/10/08)

Questions

  1. Why did most economists fail to predict the credit crunch and subsequent recession? Was it a problem with the models that were used or the data that was put into these models, or both?
  2. What was the Washington consensus? To what extent did this consensus contribute to the current recession?
  3. What is meant by systemic risk? How does this influence the usefulness of ‘micro’ financial models?
  4. What particular market failures were responsible for the credit crunch?
  5. What is meant by ‘rational behaviour’? Is it reasonable to assume that people are rational?
  6. Is macroeconomics too theoretical or too mathematical (or both)? If you think it is, how can macroeconomics be reformed to improve its explanatory and predictive power?
  7. Does a ‘really good economist’ need to have a good grounding in a range of social sciences and in economic history?

In a speech to Scottish business organisations, Mervyn King, the Governor of the Bank of England, argued that it might be necessary to split banks up. The aim would be to separate the core retail banking business, of receving deposits and lending to individuals and businesses, from the more risky and exotic wholesale acitivites of banks, such as securitisation, speculation and hedging – so-called ‘casino banking’.

Governments around the world, as represented at the G20 meeting at Pittsburg in September, have favoured tougher regulation of banks. But Mervyn King believes that this is not enough. It may not prevent the reckless behaviour that resulted in the credit crunch and bank bailouts by the government. “Never has so much money been owed by so few to so many. And, one might add, so far with little real reform.” And if regulation were to fail and banks were to get into difficulties, what would happen? There would have to be another bailout. As Mervyn King said, “The belief that appropriate regulation can ensure that speculative activities do not result in failures is a delusion.”

There are two key problems.

The first is Goodhart’s Law. If rules are set for bank behaviour, banks may adhere to the letter of the rules, but find ways around them to continue behaving in risky ways. The rules may cease to be a good measure of prudent behaviour.

The second is moral hazard. If banks know that they will be bailed out if they get into difficulties because they are too big to fail, then this encourages them to take the risks. As Mervyn King said in his speech, “The massive support extended to the banking sector around the world, while necessary to avert economic disaster, has created possibly the biggest moral hazard in history. The ‘too important to fail’ problem is too important to ignore.”

So should the banks be split? Is there any likelihood that they will? Or are Mervyn King’s proposals merely another headache for the government? The following articles looks at the issues. The first link below is to his speech.

Speech by Mervyn King, Governor to Scottish business organisations, Edinburgh (20/10/09)
Mervyn King: bail-outs created ‘biggest moral hazard in history’ (including video of part of speech) Telegraph (20/10/09)
Governor warns bank split needed BBC News (20/10/09)
A sombre warning BBC News, Stephanomics (20/10/09)
Alistair Darling rebuffs Mervyn King’s attack over timidity of banking reforms Guardian (21/10/09)
King and Brown in rift over whether to split the banks Independent (22/10/09)
Tucker set to join calls for stricter controls on banks Scotsman (22/10/09)
Testing times for bank regulators Financial Times (21/10/09)
Mervyn King is right – the economy is changing and we’re blindfolded, without a map Telegraph, Edmund Conway (22/10/09)

Questions

  1. Explain what is meant by ‘moral hazard’ in the context of bank bailouts. Are the any ways in which banks could be prevented from failing during a crisis without creating a moral hazard?
  2. Does regulation necessarily involve Goodhart’s Law? To what extent is it possible to devise regulation and avoid Goodnart’s Law?
  3. What are the arguments for and against splitting banks’ core business from more risky ‘casino banking’?
  4. Does the separation of retail and investment banking necessarily involve splitting banks into separate organisations? If they are not split, how can the government or central bank underwrite retail banking without underwriting riskier investment banking?

In times of recession, some companies can do well, even in industries where there are supply problems. One such example is Pacific Andes, a Hong Kong based frozen seafood firm. Many fishing companies have found times tough in an era of dwindling fish stocks and fishing quotas imposed by governments anxious to preserve stocks. The following article looks at Pacific Andes and how it has managed to prosper despite supply challenges and the global recession.

Casting a wide net The Standard (Hong Kong) (24/8/09)

Details of overfishing in the UK can be found at: EyeOverFishing
The site provides a “map of the UK fisheries system, the problems with it, and solutions that are possible today”.

Questions

  1. To what extent can the concept of income elasticity of demand be used to help explain why Pacific Andes has managed to prosper during the recession?
  2. What specific business strategies has Pacific Andes adopted and why?
  3. Why, if overfishing is to the detriment of the fishing indsutry, do fishing fleets still overfish many parts of the oceans? Explain why this is an example of the ‘tragedy of the commons’.
  4. What would you understand by an ‘optimum level of fishing’ for a particular type of fish in a particular part of the oceans? Explore whether the concept of a ‘social optimum’ in this context is the same as an ‘environmental optimum’?