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?!
Skin cancer is on the increase in the UK. Calls are thus being made by both retailers and cancer charities for a cut in VAT on sun cream.
At present the VAT rate on sun cream in the UK is the standard rate of 17.5%, which is due to increase to 20% in January 2011. But would cutting the rate to 5%, as is being proposed, be effective in cutting skin cancer rates? What information would you, as an economist, need to assess this claim?
Articles
Government urged to cut VAT on sun cream amid skin cancer fears Guardian, Rebecca Smithers (27/7/10)
Brits Get Burned By Vat Rise On Suncream PRLog (7/7/10)
Why we still think bronzing is tan-tastic Irish Independent, Susan Daly (27/7/10)
Evidence on sun creams
Sunscreen Wikipedia
Sun creams Cancer Research UK
Questions
- What would determine the incidence of a cut in VAT on sun creams between consumers and retailiers?
- If there were a 50:50 incidence of a VAT cut between consumers and retailers and the VAT was cut from 17.5% to 5%, what percentage fall in the retail price would you expect?
- Assume that the price elasticity of demand for sun cream is –1 and price elasticity of supply is +1, how much would sales of sun cream rise if the VAT rate fell from 17.5% to 5%? Are these realistic values for the price elasticity of demand and supply?
- Under what circumstances may promoting the use of sun creams encourage the development of skin cancer?
- Are people being rational if they choose to expose themselves to the sun for long periods in order to receive a ‘fashionable’ tan? How are time preference rates (personal discount rates) relevant here?
- What market failures are involved in the tanning industry? If the use of sunbeds contributes towards skin cancer, should they be banned?
In the aftermath of the credit crunch and the recession, many banks had to be bailed out by central banks and some, such as Northern Rock and RBS, were wholly or partially nationalised. Tougher regulations to ensure greater liquidity and higher proportions of capital to total liabilities have been put in place and further regulation is being planned in many countries.
So are banks now able to withstand future shocks?
In recent months, new threats to banks have emerged. The first is the prospect of a double-dip recession as many countries tighten fiscal policy in order to claw down debts and as consumer and business confidence falls. The second is the concern about banks’ exposure to sovereign debt: i.e. their holding of government bonds and other securities. If there is a risk that countries might default on their debts, then banks would suffer and confidence in the banking system could plummet, triggering a further banking crisis. With worries that countries such as Greece, Spain, Portugal, Italy and Ireland might have problems in servicing their debt, and with the downgrading of these countries by rating agencies, this second problem has become more acute for banks with large exposure to the debt of these and similar countries.
To help get a measure of the extent of the problem and, hopefully, to reassure markets, the Committee of European Banking Supervisors (CEBS) has been conducting ‘stress tests’ on European banks. On 24 July, it published its findings. The following articles look at these tests and the findings and assess whether the tests were rigorous enough.
Articles
Bank balance: EU stress tests explained Financial Times, Patrick Jenkins, Emily Cadman and Steve Bernard (13/7/10)
Seven EU banks fail stress test healthchecks BBC News, Robert Peston (23/7/10)
Interactive: EU stress test results by bank Financial Times, Emily Cadman, Steve Bernard, Johanna Kassel and Patrick Jenkin (23/7/10)
Q&A: What are the European bank stress tests for? BBC News (23/7/10)
Europe’s Stress-Free Stress Test Fails to Make the Grade Der Spiegel (26/7/10)
A test cynically calibrated to fix the result Financial Times, Wolfgang Münchau (25/7/10)
Europe confronts banking gremlins Financial Times (23/7/10)
Leading article: Stressful times continue Independent (26/7/10)
Europe’s banking check-up Aljazeera, Samah El-Shahat (26/7/10)
Finance: Stressed but blessed Financial Times, Patrick Jenkins (25/7/10)
Were stress test rigorous enough? BBC Today Programme, Ben Shore (24/7/10)
Banks’ stress test ‘very wooly’ BBC Today Programme, Peter Hahn and Graham Turner(24/7/10)
Stress test whitewash of European banks World Socialist Web Site, Stefan Steinberg (26/7/10)
Stress tests: Not many dead BBC News blogs: Peston’s Picks, Robert Peston (23/7/10)
Not much stress, not much test Reuters, Laurence Copeland (23/7/10)
Stress-testing Europe’s banks won’t stave off a deflationary vortex Telegraph, Ambrose Evans-Pritchard (18/7/10)
European banking shares rise after stress tests BBC News (26/7/10)
Euro banks pass test, gold falls CommodityOnline, Geena Paul (26/7/10)
Report
2010 EU-wide Stress Testing: portal page to documents CEBS
Questions
- Explain what is meant by a bank stress test?
- What particular scenarios were tested for in the European bank stress tests?
- Assess whether the tests were appropriate? Were they too easy to pass?
- What effect did the results of the stress tests have on gold prices? Explain why (see final article above).
- What stresses are banks likely to face in the coming months? If they run into difficulties as a result, what would be the likely reaction of central banks? Would there be a moral hazard here? Explain.
Here’s an exciting bit of news. Lake Eyre in South Australia is filling and the Lake Eyre Yacht Club’s sailing regatta started on 5 July. So what, you may ask! Well, Lake Eyre is in the middle of one of the driest deserts in the world. It virtually never rains there and most of the time, the ‘lake’ is one huge dry salt pan.
But just a few times per century, the rainfall many kilometres away is heavy enough to fill the dry river beds of Cooper Creek, Finke River, Georgina River and Diamantina River. These ‘rivers’ drain about one sixth of the whole of Australia (about the size of Germany, France, Italy combined) – but a sixth where rainfall is normally very low. But this season’s rains have been exceptionally high; the rivers are flowing – and the lake is filling.
When the lake does fill, it teems with life. Fish eggs that have lain buried in the salt for years hatch. Sea birds fly in nearly 1000 kilometres from the Southern Ocean. And it’s then that the enthusiasts come to play.
What’s this got to do with economics? Well economics is about scarcity and choice. Many of the choices we make are not simple buying and selling choices. Many clubs and other organisations thrive on the enthusiasm of their members. They’re not there to make money but certainly add to people’s ‘utility’. And enthusiasm, and hope, is what the members of the Lake Eyre Yacht Club have in abundance. Let’s hope they get lots of utility from sailing in the desert over the coming weeks.
Articles
Outback Sailors 10 News (6/7/10)
Floods and boat race brings life to desert lake ABC News (7/7/10)
Flightseeing Lake Eyre Stuff.co.nz, James Shrimpton (25/5/10)
Gone (not fishing) flying over Lake Eyre Australian Daily Telegraph, Maralyn Parker (6/6/10)
The Lake Eyre Yacht Club Lounge of the Lab Lemming, Chuck Magee (21/3/10)
Lake Eyre Regatta ExplorOz, The Landy blog (14/6/10)
Boom follows boom in the Lake Eyre Basin ABC Western Queensland, Julia Harris (23/3/10)
Entries flood in for rare outback regatta ABC News (23/6/10)
Yacht club sails into history with a desert regatta The Age (7/7/10)
Chasing water to Lake Eyre ABC Rural, Caitlyn Gribbin (6/7/10)
Lake Eyre brims with life ABC News, Paul Lockyer (15/6/10)
Yachting regatta in Australian desert for first time in 20 years Telegraph, Bonnie Malkin (7/7/10)
Plain sailing for desert regatta Gulf Times (7/7/10)
Information sites
Lake Eyre Yacht Club
Current Lake Status Lake Eyre Yacht Club
Lake Eyre Wikipedia
Lake Eyre Rita’s Outback Guide
Questions
- What attitude do the members of Lake Eyre Yacht Club have towards risk and uncertainty?
- How would you set about estimating the consumer surplus that members are likely to gain from attending the regatta and sailing on the lake?
- How price elastic would you expect the demand for and supply of services to be, such as ferry crossings and accommodation?
- What business opportunities are likely to be associated with sailing on the lake? Would it be ‘rational’ to set up such a business?
As the news from the Gulf of Mexico goes from very bad to even worse, so BP is increasingly coming under the international spotlight for its approach to risk management and safety. Was it sufficiently cautious? Could the accident on April 20 that killed 11 men and has been gushing some 800,000 gallons per day of crude oil into the sea have been averted? When the consequences of a pipe rupture are so catastrophic, is ‘catastrophic risk’ appropriately priced? As Tony Hayward, BP’s Chief Executive, told the Financial Times (see links below): “It was ‘an entirely fair criticism’ to say the company had not been fully prepared for a deep-water oil leak.”
One insight into BP’s approach to risk has come to light with the leaking of a 2002 memo from BP on how human life ought to be valued in any cost–benefit analysis of a project. As the Chicagoist summarises the memo:
A two page document prepared by risk managers in 2002 titled “Cost benefit analysis of three little pigs” shows the type of thinking BP put into risk assessment. The memo shows, in cartoonish fashion, that blast resistant trailers for BP’s workers weren’t necessary, because the cost was too high. In 2005, a refinery caught fire, killing 15 and injuring 170 people.
So how should catastrophic risk be taken into account? What does a company do when the probability of a disaster is extremely low and yet the costs of such a disaster, were it to occur, are extremely high?
BP’s Shocking Memo The Daily Beast, Rick Outzen (25/5/10)
Old BP document calculates worth of human life with “Three Little Pigs” diagram Yahoo News, Brett Michael Dykes (25/5/10)
Industry can cut accident risks, says BP chief Financial Times, Ed Crooks and Edward Luce (2/6/10)
BP ‘not prepared’ for deep-water spill Financial Times, Ed Crooks (2/6/10)
The BP Oil Spill’s Lessons for Regulation Project Syndicate, Kenneth Rogoff (1/6/10)
US oil firms ‘unprepared’ for major offshore disaster BBC News (15/6/10)
Questions
- What is meant by catastrophic risk?
- Why is it difficult to put an accurate valuation on outcomes with a very low probability of occurrence?
- Explain the table entitled “Cost benefit analysis of three little pigs” in the Rick Outzen blog.
- How should human life be valued?
- What value should be put on a serious injury (of a particular type)?
- Should BP (or any other company, for that matter) ever conduct operations that risk human life? Explain your answer.
- On what basis should BP have decided whether or not to install a $500,000 acoustic trigger that could have shut off the well when the blowout protector failed?
- How is the existence of environmental externalities relevant to BP’s decisions on safety?