Tag: stock markets

6 October 2011

Is the time right for a Tobin tax?

On several occasions in the past on this site we’ve examined proposals for a Tobin tax: see, for example: A ‘Robin Hood’ tax (Feb 2010), Tobin or not Tobin: the tax proposal that keeps reappearing (Dec 2009) and A Tobin tax – to be or not to be? (Aug 2009). A Tobin tax is a tax on trading in financial products, sometimes known as a ‘financial transactions tax’ (FTT). It could also be levied on trading in foreign currencies. It is considered in Economics (7th ed) (section 26.3) and Economics for Business (5th ed) (section 32.4).

The tax would be levied at a very low rate: somewhere between 0.01% and 0.5% and would be too small to affect trading in shares or other financial products for purposes of long-term investment. It would, however, dampen speculative trades that take advantage of tiny potential gains from very short-term price movements. Such trades account for huge financial flows between financial institutions around the world and tend to make markets more volatile. The short-term dealers are known as high-frequency traders (HFTs) and their activities now account for the majority of trading on exchanges. Most of these trades are by computers programmed to seek out minute gains and respond in milliseconds. And whilst they add to short-term liquidity for much of the time, this liquidity can suddenly dry up if HFTs become pessimistic.

The President of the European Commission, José Manuel Barroso, has announced that the Commission has adopted the idea of a financial transactions tax with the backing of Germany, France and other eurozone countries. This Tobin tax could be in operation by 2014. According to the Commission, it could raise some €57bn a year. Unlike earlier proposals for a Tobin tax (sometimes called the ‘Robin Hood tax’), the money raised would probably be used to reduce EU deficits, rather than being given in aid to developing countries.

The UK government has been highly critical of the proposal, arguing that, unless adopted world-wide, it would divert trade away from the City of London.

The following articles consider how such a tax would work and its potential advantages and disadvantages.

Theory inches ever closer to practice Guardian, Larry Elliott (28/9/11)
Osborne expected to oppose EU’s proposal for Tobin tax on banks Guardian, Jill Treanor (28/9/11)
Tobin tax could ‘destroy’ business models Accountancy Age, Jaimie Kaffash (30/9/11)
Tobin tax is likely, says banking chief Accountancy Age, Jaimie Kaffash (5/10/11)
Could a transactions tax be good for capitalism? BBC News, Robert Peston (3/10/11)
EU to propose tax on financial transactions BusinessDay (South Africa), Mariam Isa (5/10/11)
European politicians plot to block UK veto on ‘Tobin tax’ The Telegraph, Louise Armitstead (3/10/11)
Opinion Divided on EU Transaction Tax Tax-News, Ulrika Lomas (5/10/11)
Tobin taxes and audit reform: the blizzard from Brussels The Economist (1/10/11)

Questions

What are HFTs and what impact do they have on the stability and liquidity of markets?
Explain how a Tobin tax would work.
What would be the potential advantages and disadvantages of the Tobin tax as proposed by the European Commission (the ‘financial transactions tax’)?
Are financial markets efficient? Can a market be ‘excessively efficient’?
How are ‘execute or cancel’ orders used by HFTs?
Why do HFTs have an asymmetric information advantage?
How does a financial transactions tax differ from the UK’s stamp duty reserve tax?
Explain why the design of the stamp duty tax has prevented the flight of capital and trading from London. Could a Tobin tax be designed in such a way?

13 September 2011

The brutal face of supply and demand

Stock markets have been plummeting. The FTSE 100 index was 6055 on 7 July 2011; by 10 August, it was 17% lower at 5007. Since then it has risen as high as 5418, but by 13 September was down to 5092. Other stock markets have fared worse. The French index fell 30% between early July and September 13, and the German DAX index fell 32% over the same period.

These falls in share prices reflect demand and supply. Investors are worried about the future of the eurozone and the health of the European economy as Greek default looks more and more likely and as the debts of various other European countries, such as Portugal, Ireland and Spain, seem increasingly unsustainable in an environment of sluggish economic growth. They are also worried about high public-sector debt in the USA and the likelihood that global recovery will peter out.

The ‘bear’ market (falling share prices) reflects increased selling of shares and a lack of demand. Not only are investors worried about the global economy, they are also speculating that share prices will fall further, thereby compounding the falls (at least until the ‘bottom’ is reached).

But why have share prices fallen quite so much? And does it matter to the general public that this is happening? The following articles seek to answer these questions.

Articles
Shares tumble on fears over Greek default Guardian, Graeme Wearden (12/9/11)
European Factors-Shares set for steep fall on Greece worries Reuters (12/9/11)
Markets set for turmoil after G-7 letdown BusinessDay (South Africa), Mariam Isa (12/9/11)
What will happen if Greece defaults? The Conversation (Australia), Sam Wylie (12/9/11)
Germany and Greece flirt with mutual assured destruction The Telegraph, Ambrose Evans-Pritchard (11/9/11)
Market Swings Are Becoming New Standard New York Times, Louise Story and Graham Bowley (11/9/11)
The next bull market The Bull (Australia) (12/9/11)
Prepare For Recession And Bear Market Forbes, Sy Harding (9/9/11)
Eurozone crisis: What market turmoil means for you BBC News, Kevin Peachey (8/9/11)

Questions

What factors have led to the recent falls in stock market prices? Explain just why these factors have contributed to the falls.
What is likely to happen to stock market prices in the coming weeks? Why is it difficult to predict this?
What is meant by the efficient capital markets hypothesis? If markets were perfectly efficient, why would it be impossible to predict future movements in stock market prices? Why may stock markets not be perfectly efficient?
What factors determine stock market prices over the longer term?
How are share prices influenced by speculation? Distinguish between stabilising and destabilising speculation.
Explain the various ways in which members of the general public can be affected by share price falls. Are you affected in any way? Explain.
If Greece defaults, what will determine the resulting effect on stock markets?
To what extent does the stock market demonstrate the ‘brutal face of supply and demand’?

6 August 20116 August 2011

Down the big dipper again

Friday 5 August 2011 saw the end of a very bad fortnight for stock markets around the world. In Japan the Nikkei 225 had fallen by 8.2%, in the USA the Dow Jones had fallen by 9.8%, in the UK the FTSE 100 was down 11.6% and in Germany the Dax was down 14.9%. In the first five days of August alone, £148 billion had been wiped off the value of the shares of the FTSE 100 companies and $2.5 trillion off the value of shares worldwide.

But why had this happened and what are likely to be the consequences?

The falls have been caused by the growing concerns of investors about the health of the global economy and the global financial system. There are worries that the European leaders at their summit on 21 July did not do enough to prevent the default of large countries such as Spain and Italy. There are concerns that the US political system, following the squabbling in Congress over raising the sovereign debt ceiling for the country, may not be up to dealing with the country’s huge debts. Indeed, the rating agency, Standard & Poor’s, downgraded the USA’s credit rating from AAA to AA+. This is the first time that the USA has not had top rating.

Then there are worries about the general slowing down of the world economy and how this will compound the problem of sovereign debt as it hits tax revenues and makes it harder to reduce social security payments. Underlying all this is the fear that the problem of indebtedness that contributed to the banking crisis of 2007/8 has not gone away; it has simply been transferred from banks to governments. As Robert Peston states in his article, linked to below:

The overall volume of indebtedness in the economy is therefore still with us – although it has been shuffled from financial sector to public sector.

And if you took the view four years ago that the quantum of debt in the system was unsustainably large, then you would argue that by propping up the banks, the day of reckoning was being postponed, not cancelled.

… just like the awakening in 2007 to the idea that many of the housing loans and associated financial products were worthless, so there is a growing fear that a number of financially overstretched governments, especially in the eurozone, will not be able to repay their debts in full.

Which brings us to the consequences. Key to the answer is confidence. If governments can reassure markets over the coming days and weeks that they have credible policies to support highly indebted countries in the short term and to sustain demand in the global economy (e.g. through further quantitative easing in the USA (QE3)); and if they can also reassure markets that they have tough and credible policies to reduce their debts over the longer term, then confidence may return. But it will not be an easy task to get the balance right between sustaining recovery in the short term and fiscal retrenchment over the long term. Meanwhile consumers are likely to become even more cautious about spending – hardly the recipe for recovery.

Videos
Markets turmoil: What you need to know BBC News, Jonty Bloom (5/8/11)
Turmoil on stock markets persists as share prices fall BBC News, Robert Peston (5/8/11)
Global stock market crash – video analysis Guardian, Larry Elliott and Cameron Robertson (5/8/11)
S&P downgrade US AAA credit rating BBC News, Marcus George (6/8/11)
U.S. loses AAA credit rating Reuters, Paul Chapman (6/8/11)
U.S. loses AAA credit rating from S&P CNN (5/8/11)
US loses AAA rating ITN (6/8/11)
Shares slump amid euro fears Channel 4 News, Faisal Islam (4/8/11)
What triggered the turmoil? Financial Times, Sarah O’Connor and Edward Hadas (5/8/11)
Fears eurozone woes will spread BBC News, Stephanie Flanders (5/8/11)

Articles
FTSE 100 tumbles in worst week since height of the crisis The Telegraph, Richard Blackden (5/8/11)
Global recession fears as stock markets tumble to nine-month low The Telegraph, Alistair Osborne (3/8/11)
Global markets on the brink of crisis Guardian, Larry Elliott (5/8/11)
A week of financial turmoil: interactive Guardian, Nick Fletcher, Paddy Allen and James Ball (5/8/11)
Turmoil on stock markets persists BBC News (5/8/11)
Bank worries bring echoes of 2008 BBC News, Stephanie Flanders (5/8/11)
The origins of today’s market mayhem BBC News, Robert Peston (5/8/11)
Time for a double dip? The Economist (6/8/11)
Rearranging the deckchairs The Economist (6/8/11)
High hopes, low returns The Economist (4/8/11)
The debt-ceiling deal: No thanks to anyone The Economist (6/8/11)
Six years into a lost decade The Economist (6/8/11)
Debt crisis Q&A: what you need to know about Standard & Poor’s credit rating The Telegraph, Richard Tyler (6/8/11)
U.S. Will Roll Out QE3 After S&P Rating Cut, Li Daokui Says Bloomberg (6/8/11)
China flays U.S. over credit rating downgrade Reuters, Walter Brandimarte and Gavin Jones (6/8/11)
US credit rating downgraded to AA+ by Standard & Poor’s Guardian, Larry Elliott, Jill Treanor and Dominic Rushe (5/8/11)
Reaction to the US credit rating downgrade Guardian (6/8/11)
Market turmoil and the economics of self-harm Guardian, Mark Weisbrot (5/8/11)
Week ahead: Markets will sort through credit downgrade Moneycontrol (6/8/11)

S&P Statement
S&P statement on lowering US long-term debt to AA+ Guardian (6/8/11)

Questions

Why have share prices been falling?
Does the fall reflect ‘rational’ behaviour on the part of investors? Explain.
Why does ‘overshooting’ sometimes occur in share price movements?
Why has the USA’s credit rating been downgraded by Standard & Poor’s? What are the likely implications for the USA and the global economy of this downgrading?
How is the downgrading likely to affect the return on (a) existing US government bonds; (b) new US government bonds?
Why might worries about the strength of the global recovery jeopardise that recovery?
To what extent has the debt problem simply been transferred from banks to governments? What should governments do about it in the short term?

22 February 20119 March 2011

A crude time for oil

Oil is a commodity like any other – its price is affected by demand and supply. Back in 2003, with the impending war in Ira and strikes in Venezuela, oil prices increased and continued to do so as further supply concerns developed in Saudi Arabia, Russia and Nigeria. This upward trend continued until 2008, when with the growing banking turmoil and demand for oil falling, the price began to decline. However, the crisis in Libya is only making matters worse. Its credit-rating has been downgraded with the potential for it to be lowered further and concerns are deepening about the country’s crude exports. As Libya is the world’s 12th largest exporter of oil, these supply concerns have started to push up oil prices once more.

With inflation rates already high and political turmoil pushing oil prices up further, consumers and firms are feeling the squeeze. These changes have also been reflected on stock markets across the world. Analyst, Michael Hewson at CMC Markets said:

‘Given the fact that we have seen massive gains in stock markets over the last few months, investors have been nervous about a possible correction for some time… The tensions in the Middle East with Libya imploding and concerns that the unrest could spread to Saudi Arabia could provide a catalyst for (this) correction.’

The disruption in the Middle East has caused companies such as Eni of Italy and Repsol YPF of Spain to shut down production, leading to output losses of some 22% of Libya’s production. As supply contracts from this region, prices will inevitably rise. However, the Saudi oil Minister has said that he is ready to boost production to offset any decline, but that at present there is no oil crisis. So, what can we expect to happen to oil prices in the coming months? It will all depend on changes in demand and supply.

Articles

Libyan crisis threatens to spark oil crisis Financial Times, Javier Blas and David Blair (22/2/11)
Libya protests: oil prices rise as unrest continues BBC News (22/2/11)
Oil producers, users sign charter as prices spike Associated Press (21/2/11)
Oil shock fears as Libya erupts Telegraph, Ambrose Evans-Pritchard (22/2/11)
Arab protests pose energy threat BBC News, Damian Kahya (22/2/11)
All eyes on Bahrain as Gulf tremors frighten oil markets Telegraph, Ambrose Evans-Pritchard (22/2/11)
Saudi Arabia seeks to calm market with words not oil Reuters (22/2/11)
Saudi Arabia says oil market needs no intervention Associated Press (21/2/11)
Peace in Bahrain is key to stopping oil prices from surging Live Oil Prices (22/2/11)

Data

Commodity Prices Index Mundi
Crude Oil Price Chart WTI

Questions

What are the key factors that influence the supply of oil? How will each factor affect the supply curve?
What are the key factors that influence the demand for oil? How will each factor affect the demand curve?
Putting your answers to questions 1 and 2 together and using your knowledge of recent events in the oil market, explain the changes in oil prices.
How are oil prices affected by OPEC?
How have rising oil prices affected the stock market? What’s the explanation for this relationship?
How might higher prices affect the economic recovery? Think about the impact on consumers and firms.

2 July 2010

The death cross: should we be very afraid? Or is it mere financial astrology?

What’s going to happen to stock market prices? If we knew that, we could be very rich! Nevertheless, financial analysts constantly try to predict the movements of shares in order to decide when to buy and when to sell. One thing they do is to look at charts of price movements and look for patterns. These ‘chartists’, as they are sometimes called, refer to something known as the ‘death cross’ or ‘dark cross’.

So what is the death cross? Imagine a chart of the movements of share prices, such as the FTSE 100 in the UK or the Dow Jones Industrial Average and S&P 500 in the USA. These movements can be shown as a moving average. In other words, for each day you plot the average of the past so many days. Typically, 200-day (sometimes 100-day) and 50-day moving averages are plotted. The 200-day (or 100-day) is taken as the long-term moving average and the 50-day as the short-term moving average. In a falling market, if the short-term moving average crosses below the long-term moving average, this is called the ‘death cross‘ as it signifies growing downward pressure in the market. The fall in the long-term average in these circumstances will indeed lag behind the fall in the short-term moving average.

Markets around the world are experiencing the death cross. So should be be worried? Or is this like looking for patterns in tea leaves, or the stars, and using them to make bogus predictions? So: science or mumbo jumbo?

First the science: the death cross indicates a fall in confidence. And at present, there is much for investors to worry about. Burgeoning debts, austerity measures and fears of a double-dip recession are spooking markets.

Now the mumbo jumbo. Just because markets are falling at the moment, this does not prove that they will go on falling. Markets are often spooked, only to recover when ‘sanity’ returns. People may soon start to believe that a second credit crunch will not return, given all the regulatory and support measures put in place, the huge amount of liquidity waiting to be invested and the support packages from the ECB and IMF for Greece and, potentially, for other eurozone countries having difficulties servicing their debts. In other words, patterns may repeat themselves, but not necessarily. It depends on circumstances.

Articles
Market’s Swoon Prompts Fears Of the Dreaded ‘Death Cross’ CNBC, Jeff Cox (1/7/10)
Death Cross in S&P 500 May Not Lead to Rout: Technical Analysis Bloomberg Businessweek, Alexis Xydias (30/6/10)
Are the markets about to encounter the”Death Cross”? BBC News, Jamie Robertson (1/7/10)
MarketBeat Q&A: Debunking the ‘Death Cross’ Wall Street Journal blogs, Matt Phillips (30/6/10)

Technical analysis and market data
Moving Average Crossovers TradingDay.com, Alan Farley
Death Cross Investopedia
FTSE 100 historical prices Yahoo Finance
S&P 500 historical prices Yahoo Finance
Dow Jones historical prices Yahoo Finance

Questions

Explain what is meant by the death cross and use a diagram to illustrate it. What is menat by the golden cross. Again, use a diagram to illustrate it.
Under what circumstances would speculation against stock market price movements be (a) stabilising and (b) destabilising?
What is the implication for stock market prices of a ‘wall of money’?
How much faith should be put in chartist explanations of stock market prices? Do criticisms of chartism apply to all time-series analysis that is used for forecasting?
Look back at newspaper articles from a year ago and see what they were predicting about stock market prices. Have their preductions been borne out? If so, why? If not, why not?