Economics is about choice – and choices occur in all parts of our lives. One area is personal relationships. Are we making the best of our relationships with family, friends and sexual partners? Increasingly economists are examining human behaviour in such contexts and asking what factors determine our decisions and whether such decisions are rational.
A recent book looks at the economics of marriage and goes under the title of ‘Spousonomics‘. Its authors, Paula Szuchman and Jenny Anderson, use economics “to master love, marriage and dirty dishes”. As they say:
Every marriage is its own little economy, a business of two with a finite number of resources that need to be allocated efficiently.
They look at ways in which such resources can be allocated efficiently. They also look at apparently irrational behaviour and seek to explain it in terms of various ‘failures’ (akin to market failures). They also examine how these failures can be rectified to improve relationships.
So is this economics stepping on the toes of relationship counsellors and psychologists? Or is this the legitimate domain of economists seeking to understand how to optimise in the context of scarce resources – including time and patience?
Spousonomics gets to heart of the matter Belfast Telegraph (19/1/11)
Run your marriage with ‘Spousonomics’: A new book says applying economic rules with transform your relationship Mail Online, Lydia Slater (31/1/11)
Spousonomics: How Economics Can Help Figure Out Your Marriage Book Beast (31/1/11)
Spousonomics Lesson #1: Loss Aversion YouTube (15/1/11)
Economist’s Explanation For Why Getting Married Isn’t Rational Huffington Post, Dan Ariely (15/1/11)
How Economics Saved My Marriage Newsweek, Paula Szuchman (30/1/11)
Want your marriage to profit? New York Post, Sara Stewart (29/1/11)
Spousonomics: blog, Paula Szuchman and Jenny Anderson
Questions
- How would you define ‘rational behaviour’ in a personal relationship?
- Why may marriage be a better deal generally for men than for women?
- Give some examples of asymmetry of information in marriage and why this may lead to bad decision making?
- Give some examples of risk averse and risk loving behaviour in personal relationships?
- Why are many actions in marriage apparently irrational? Could such actions be explained if the concept of ‘irrationality’ is redefined?
- Why may a simple demand curve help to explain why sexual relationships tend to wane in many marriages?
- Why does moral hazard occur in marriage? Does a combination or moral hazard and asymmetry of information help to explain divorce?
- Should marriage guidance counsellors study economics?!
Business leaders and politicians pay a great deal of attention to economic forecasts. And yet these forecasts often turn out to be quite wrong. Very few economists predicted the banking crisis of 2008 and the subsequent credit crunch and recession. And the recently released 2010 Q4 growth figures for the UK economy, which showed a decline in real GDP of 0.5%, took most people by surprise.
What is more, forecasters often disagree. If, for example, you look at the forecasts made by various panel members for Consensus Forecasts, you can see the divergence between their various predictions.
So why is economic forecasting so unreliable? Is it the fault of economic models? Or are there too many unpredictable factors that can impact on economies – factors such as business and consumer confidence, or political events, or natural disasters, such as the recent floods in Australia, South Africa and Brazil? Will economic forecasting always be a very inexact science?
Articles
Davos 2011: Why do economists get it so wrong? BBC News, Tim Weber (27/1/11)
Popular Semi-Science Slate, Robert J. Shiller (24/1/11)
Fed Often Gets It Wrong In Its Forecasts on US Economy American Public Media, Justin Wolfers (26/1/11)
Don’t bet on economic forecasting CNBC, Jeff Cox (21/9/10)
Forecasts
Forecasts for the UK economy HM Treasury
Econ Stats: The Economic Statistics and Indicators Database Economy Watch (large database of worldwide annual statistics, including forecasts to 2015)
World Economic Outlook IMF (follow link in right-hand panel)
OECD Economic Outlook: Statistical Annex OECD
European Economic Forecasts European Commission, Economic and Financial Affairs DG
Questions
- For what reasons may economic forecasts turn out to be wrong?.
- To what extent is economic forecasting like weather forecasting? Which is harder and why?
- Wo what extent can the poor accuracy of economic forecasts be blamed on the application of the ‘wrong type of economics’?
- How much variation is there in the independent forecasts of the UK economy reported by the Treasury (see HM Treasury link above)?
- Using the HM Treasury link, compare the forecasts made of 2010 in January 2010 with those made of 2010 in January 2011. Attempt an explanation of the differences.
It is widely acknowledged that the supply of oil and gas will eventually run out. As these resources are depleted, prices will inevitably rise. However, with heating and energy bills at extremely high levels, a new ‘resource’ in Sweden has been used to heat buildings: Body Heat!
Hundreds of thousands of people pass through Stockholm Central Station every day and rather than letting the body heat these people generate go to waste, a Swedish firm, Jernhusen, is now ‘collecting’ their heat, converting it into hot water and then using this as a new heating resource. Klass Johnasson, one of the creators of the system said:
This is old technology being used in a new way. The only difference here is that we’ve shifted energy between two different buildings.
The Swedish firm has found that the system is not only environmentally friendly, but it is also good business practice, as it has reduced the energy costs of the block by some 25%, which, during a recession and with high energy prices, is no small thing!
The costs and benefits of such a system will inevitably vary from country to country, but in Sweden’s case, it is a viable method of heating, given their high energy prices and low winter temperatures. They are not stealing the heat from anyone, but are simply converting the excess heat that is already there. Obviously, the fact that the firm owns the station, and also the land between the station and their building, is helpful in ‘transferring’ the energy, but the firm argues that even if this wasn’t the case, it’s nothing co-operation wouldn’t solve. Is this the future of low-cost and low-carbon heating?
Harvesting energy: body heat to warm buildings BBC News, Xanthe Hinchey (9/1/11)
How Sweden turns human body heat into useful energy BBC News (19/4/10)
Passengers passing by Stockholm Central Station reduce 25% of used heating energy The Green Optimistic, Mihai Sandru (12/1/11)
Body heat: the new energy source ecPulse (11/1/11)
Questions
- Think about how we define abundance. Is body heat an abundant resource?
- Why are energy and oil prices so high? How does scarcity affect their price?
- Could this source of heating be described as a market failure? If so, how could we illustrate this on a diagram?
- Consider the Swedish firm’s profit-maximising price and output. The new heating method is said to reduce their costs – will it affect their average and/or marginal costs? Show the impact on a diagram. What happens to the firm’s profits?
- Is this heating method something other firms could benefit from? How could they decide whether it is cost-effective?
- Is there a role for the government to encourage more firms to use this method? Explain your answer.
This week, we have seen some major potential changes in the UK’s welfare state. One key change involves child benefit. (see Who won’t benefit from child benefit?) However, a more recent development stems from a problem that has built up over a number of years and is not just peculiar to the UK: Pensions.
As technology advances and medical procedures improve, there has been a general increase in life expectancy for both men and women across the world. People are living for longer and longer and hence pensioners can be in retirement for over 30 years. This is over double the retirement time we used to see decades ago. Therefore, pensioners are eligible to receive their state pension or their private pension for much longer and hence the cost is becoming unsustainable.
Lord Hutton has led a review into public sector pension schemes and has concluded that public sector workers should be paying higher contributions. Lord Hutton has said that employees should be working for longer and hence retiring later. This would increase their contributions throughout their lives and also reduce the time period over which they receive a pension, hence cutting costs. There was also a recommendation that ‘final-salary pension schemes should be scrapped and changed to so-called ‘career-average’ schemes. The final-salary scheme benefits high earners and not those who make gradual progression up the career ladder. This possible change should certainly reduce the pension you are eligible to receive and hence should positively affect the sustainability of pension provision in the UK.
However, public sector workers who may face higher contributions and have already, in some cases, faced pay cuts or pay freezes, are unsurprisingly upset. They argue that accepting work in the public sector means accepting a lower wage than they could achieve in the private sector. The compensation, they argue, is the reward of a higher pension, which could be about to change. However, the independent review has found that the contributions made by the public sector do not reflect the true cost of the benefit they receive in their pension. This is likely to be a contentious issue for some time to come. Below are some articles considering this, but keep a look out for further developments.
Articles
Public sector pensions report explained BBC News (7/10/10)
Public sector pensions review: Q&A Telegraph (9/10/10)
Pensions reforms to focus on high earners Independent, Simon Read (9/10/10)
Why Lord Hutton could make public pensions bills bigger … not smaller Financial News, Mark Cobley and William Hutchings (8/10/10)
Lord Hutton: I busted the myth that public sector pensions are gold-plated Telegraph, Lord Hutton (8/10/10)
Key points of UK public sector pension review Reuters (8/10/10)
Public pensions review recommends higher contributions BBC News (7/10/10)
Public sector workers paying ‘less tax’ due to generous pension rules Telegraph, Myra Butterworth (8/10/10)
Asda closes final salary pension scheme Telegraph, Jamie Dunkley (9/10/10)
Hutton report: he’s no friend of gold-plated pensioners Guardian, Patrick Collinson (9/10/10)
Asda to close final salary pension scheme BBC News (8/10/10)
Lord Hutton: what the pension revolution means for public servants Telegraph, Emma Simon (8/10/10)
Report
Independent Public Service Pensions Commission: Interim Report Pensions Commission, Lord Hutton October 2010
Questions
- What is the purpose of a pension? Think about the idea of redistribution.
- Why should average-career pension schemes be less costly than final-salary pension schemes? Which is the most equitable arrangement?
- What are the key problems that have led to the pensions problem in the UK?
- What are the main recommendations of the independent pension review?
- How is opportunity cost relevant to problem of pensions provision?
- Is it fair that public sector workers should pay higher contributions towards their pensions?
- The BBC News article, Public sector review recommends higher contributions states that: “The recent decision to uprate pensions in line with the consumer prices index (CPI) rather than the retail prices index (RPI) has shaved 15% from the cost of the schemes.” Explain why this is the case?
One of the key problems faced by all countries over the past three years has been a lack of consumer demand. Firms face demand from a number of sources and when the domestic economy is struggling and domestic demand is weak, a key source of demand will be from abroad. By this, we are of course referring to exports. However, it was not just one country that plunged into recession: the global economy was affected. So, when one country was suffering from a weak domestic market, it turned to its export market and hence to other countries for demand. However, with these economies also suffering from recession, the export market was unable to offer any significant help. In order to boost exports, governments have tried to make their export markets more competitive and one method is to cut the value of the currency. Japan, South Korea, Thailand, Columbia and Taiwan are just some of the countries using this strategy.
Following these interventions, the Brazilian finance minister has commented that a new trade war has begun. Speaking to a group of industrial leaders in Sao Paulo, Mr. Mantega said:
‘We’re in the midst of an international currency war. This threatens us because it takes away our competitiveness.’
As more and more governments intervene in the currency market in a bid to boost exports, those refraining from intervening will suffer. Furthermore, interest rates throughout the developed world have remained low, as central banks continue their attempts to boost economics. However, this has led vast amounts of money to be transferred into countries, such as Brazil, where there is a better supply of high-yield assets. This has worsened the state of affairs in Brazil, as the Brazilian currency is now thought to be the most heavily over-valued currency in the world. This adversely affects Brazil’s export market and its trade balance. The following articles look at the lastest developments in this new ‘war’.
Articles
Currencty ‘war’ warning from Brazil’s finance minister BBC News (28/9/10)
Brazil warns of world currency war Telegraph (28/9/10)
Brazil warns of world currency ‘war’ Associated Press (28/9/10)
Brazil defends exporters in global currency battle Reuters (15/9/10)
Kan defends Japan’s intervention in the currency markets Associated Press (25/9/10)
US and China are still playing currency Kabuki Business Insider, Dian L. Chu (21/9/10)
How to stop a currency war The Economist (14/10/10)
What’s the currency war about? BBC News, Laurence Knight (23/10/10)
Exchange rate data
Exchange rate X-rates.com
Statistical Interactive Database – interest and exchange rates data Bank of England
Currencies BBC News
Currency converter Yahoo Finance
Questions
- Demand for a firm’s products comes from many sources. What are they? Illustrate this on a diagram.
- Why is a weak currency good for the export market?
- How will a country’s trade balance be affected by the value of its currency?
- Explain the process by which investors putting money into high-yield assets in countries like Brazil leads to currency appreciation.
- What are the options open to a government if it wants to devalue its currency? What are the advantages and disadvantages of each method?