Tag: forecasting

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

  1. 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.
  2. Under what circumstances would speculation against stock market price movements be (a) stabilising and (b) destabilising?
  3. What is the implication for stock market prices of a ‘wall of money’?
  4. 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?
  5. 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?

The annual Agricultural Outlook for the next ten years has just been published jointly by the OECD and the UN Food and Agriculture Organization (FAO). Click here and here for audio presentations of the report by the FAO’s Jacques Diouf and the OECD’s Angel Gurría.

The report argues that world recovery will raise agricultural prices. This will be partly the direct result of higher demand and partly the result of higher prices of agricultural inputs, such as fertilisers and fuel. But prices will not rise back to the peak levels of 2007/8. These higher prices, however, would have a positive effect on world food output, especially in the BRICs (Brazil, Russia, India and China). This, in turn, would limit the price rises.

So is this good news for food producers and consumers? The following articles look at the issues

Articles
Economic upturn, energy to lift farm prices-FAO/OECD Reuters, Gus Trompiz (15/6/10)
Higher average farm prices expected, food security concerns persist, say OECD and FAO FAO Media Centre (15/6/10)
Food commodity prices to rise Financial Times, Javier Blas (15/6/10)
Price increases fuel fears of food ‘crises’ Financial Times, Javier Blas (15/6/10)
Emerging economies ‘to enjoy food production boom’ BBC News (15/6/10)
Rising crop prices can be ‘good news’ for farmers: UN/OECD MSN News, Malaysia (15/6/10)
Food prices to rise by up to 40% over next decade, UN report warns Guardian (15/6/10)
Wheat, oils and dairy prices to stay up 40% for next decade, FAO BakeryAndSnacks.com, Jess Halliday (15/6/10)
Food prices could soar up by 40 per cent in next decade, UN report warns UN News Centre (15/6/10)

Report and data
OECD-FAO Agricultural Outlook 2010-2019: portal page OECD and FAO
OECD-FAO Agricultural Outlook 2010-2019: Highlights OECD and FAO
OECD-FAO Agricultural Outlook 2010-2019: Database OECD and FAO
Commodity prices Index Mundi

Questions

  1. Explain what is likely to happen to food prices. What are the explanations given in the report?
  2. Represent the analysis on a supply and demand diagram (or diagrams).
  3. What is the relevance of (a) income elasticity of demand, (b) price elasticity of demand, (c) cross-price elasticity of demand, (d) price elasticity of supply, in explaining the likely future movements of food prices and why some food prices are likely to rise faster than others?
  4. What factors are likely to impact on the production of food in developing countries?

The OECD published its latest interim assessment of the world economy on April 7. This showed a world gradually bouncing back from recession, with growing GDP (albeit at variable speeds in different countries), rising industrial production, increasing business confidence, a stabilising of financial markets, an easing of credit conditions and yet continuing low inflation.

The UK is forecast to have an annualised rate of growth of GDP in quarter 2 of 3.1%. This is the second highest of the G7 countries, behind only Canada. This would seem like good news – an economic spring for the UK.

Despite continuing growth in the OECD countries, in most of them recovery is fragile. The OECD thus recommends caution in removing the stimulus measures adopted in most countries and hence caution in embarking on measures to cut public-sector deficits. As the report states:

Despite some encouraging signs on activity, the fragility of the recovery, a frail labour market and possible headwinds coming from financial markets underscore the need for caution in the removal of policy support. Central banks have already begun to rein in the exceptional liquidity stimulus injected during the recession. Further action in this area will need to be guided by financial conditions. The normalisation of policy interest rates should be carried out at a pace that will be contingent on the strength of the recovery in individual countries and the outlook for inflation beyond the near-term projection horizon. As for fiscal policy, the sharp increase in government indebtedness in the OECD area during the downturn calls for ambitious, clearly communicated medium-term consolidation programmes in many countries. Consolidation should start in 2011, or earlier where needed, and progress gradually so as not to undermine the incipient recovery.

The following webcast from the OECD presents the report.

Webcast
Interim Assessment OECD, Pier Carlo Padoan, OECD Chief Economist (7/4/10)

Report
Portal to report and webcast OECD
What is the economic outlook for OECD countries? An interim assessment OECD, Pier Carlo Padoan (7/4/10)

Articles
Economy set to speed up and beat UK’s rivals, says OECD Independent, Sean O’Grady (8/4/10)
Economy poised for rapid expansion Financial Times, Norma Cohen and Daniel Pimlot (8/4/10)
OECD sees slower growth in US, Europe, Japan Sydney Morning Herald (8/4/10)
UK business confidence ‘hits four-year high’ BBC News (12/4/10)
British companies confident of recovery but need investment, BDO warns Telegraph, Angela Monaghan (12/4/10)

Questions

  1. What are the main findings in the report?
  2. What are the policy implications of the findings?
  3. What are the implications of developments in financial markets? What are the possible ‘headwinds’?
  4. What factors could threaten the recovery of the UK economy?

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?

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?