Author: John Sloman

Politicians often make use of economic statistics to promote their point of view. A good example is a claim made by the UK Prime Minister on 23 January 2014. According to the latest statistics, he said, most British workers have seen their take-home pay rise in real terms. The Labour party countered this by arguing that incomes are not keeping up with prices.

So who is right? Studying economics and being familiar with analysing economic data should help you answer this question. Not surprisingly, the answer depends on just how you define the issue and what datasets you use.

The Prime Minister was referring to National Statistics’ Annual Survey of Hours and Earnings (ASHE). This shows that in April 2013 median gross weekly earnings for full-time employees were £517.5, up 2.25% from £506.10 in 2012, and mean gross weekly earnings for full-time employees were £620.30, up 2.06% from £607.80 in 2012 (see Table 1.1a in the dataset). CPI inflation over this period was 2.4%, representing a real fall in median gross weekly earnings of 0.15% and mean gross weekly earnings of 0.34%.

But when adjustments are made for increases in personal income tax allowances, then, according to the government, except for the richest 10% of the working population, people had an average increase in real take-home pay of 1.1%.

But does this paint the complete picture? Critics of the government’s claim that people are ‘better off’, make the following points.

First, the ASHE dataset is for the year ending April 2013. The ONS publishes other datasets that show that real wages have fallen faster since then. The Earnings and Working Hours datasets, published monthly, currently go up to November 2013. The chart shows real wages from January 2005 to November 2013 (with CPI = 100 in December 2013). You can see that the downward trend resumed after mid 2013. In the year to November 2013, nominal average weekly earnings rose by 0.9%, while CPI inflation was 2.1%. Thus real weekly earnings fell by 1.2% over the period (click here for a PowerPoint of the chart).

Second, there is the question of whether CPI or RPI inflation should be used in calculating real wages. RPI inflation was 2.9% (compared to CPI inflation of 2.4%) in the year to April 2013. The chart shows weekly earnings adjusted for both CPI and RPI.

Third, if, instead of looking at gross real wages, the effect of income tax and national insurance changes are taken into account, then benefit changes ought also to be taken into account. Some benefits, such as tax credits and child benefit were cut in the year to April 2013.

Fourth, looking at just one year (and not even the latest 12 months) gives a very partial picture. It is better to look at a longer period and see what the trends are. The chart shows the period from 2005. Real wages (CPI adjusted) are 8.0% lower than at the peak (at the beginning of 2009) and 5.0% lower than at the time of the election in 2010. The differences are even greater if RPI-adjusted wages are used.

But even if the claim that real incomes are rising is open to a number of objections, it may be that as the recovery begins to gather pace, real incomes will indeed begin to rise. But to assess whether this is so will require a careful analysis of the statistics when they become available.

Articles

UK pay rising in real terms, says coalition BBC News (24/1/14)
Are we really any better off than we were? BBC News, Brian Milligan (24/1/14)
Government take-home pay figures ‘perfectly sensible’ BBC Today Programme, Paul Johnson (24/1/14)
Take-Home Pay ‘Rising Faster Than Prices’ Sky News, Darren McCaffrey (25/1/14)
David Cameron hails the start of ‘recovery for all’ The Telegraph, Peter Dominiczak (23/1/14)
Is take-home pay improving? The answer is anything but simple The Guardian, Phillip Inman and Katie Allen (24/1/14)
Cameron’s ‘good news’ about rising incomes is misleading says Labour The Guardian, Rowena Mason (24/1/14)
The Tories’ claim that living standards have risen is nonsense on stilts New Statesman, George Eaton (24/1/14)
FactCheck: Conservative claims on rising living standards Channel 4 News, Patrick Worrall (25/1/14)
Living standards squeeze continues in UK, says IFS BBC News (31/1/14)
Richest have seen biggest cash income squeeze but poorest have faced higher inflation IFS Press Release (31/1/14)

Data

Average Weekly Earnings dataset ONS (22/1/14)
Annual Survey of Hours and Earnings, 2013 Provisional Results ONS (12/12/13)
Consumer Price Inflation, December 2013 ONS (14/1/14)
Inequality and Poverty Spreadsheet Institute for Fiscal Studies
An Examination of Falling Real Wages, 2010 to 2013 ONS (31/1/14)

Questions

  1. Why are mean weekly earnings higher than median weekly earnings?
  2. Explain the difference between RPI and CPI. Which is the more appropriate index for determining changes in real incomes?
  3. Find out what benefit changes have taken place over the past two years and how they have affected household incomes.
  4. How have gross weekly earnings changed for the different income groups? (The ASHE gives figures for decile groups.)
  5. Which is better for assessing changes in incomes: weekly earnings or hourly earnings?
  6. How would you define a change in living standards? What data would you need to be able to assess whether living standards have increased or decreased?

World leaders are meeting at the World Economic Forum in Davos, in the Swiss Alps. This annual conference is an opportunity for politicans, economists and businesspeople from around the world to discuss the state of the world economy and to consider policy options.

To coincide with the conference, the BBC’s Newsnight has produced the following slide show, which presents some economic facts about the world economy. The slide show provides no commentary and there is no commentary either in this blog – just some questions for you to ponder.

Using the economics you’ve learned so far, try answering these questions, which focus on the reasons for the patterns in the figures, the likely future patterns and the policy implications.

Slide show
Davos: 22 facts people should know BBC Newsnight (23/1/14)

Data

For additional international data to help you answer the questions, see:
Economic Data freely available online Economics Network

Questions

  1. Go through each of the slides in the Newsnight presentation and select the ones of most interest to you. Then, as an economist, provide an explanation for them.
  2. Identify some patterns over time in the statistics. Then project forward 20 years and discuss whether the patterns are likely to have changed and, if so, why.
  3. What policies could governments adopt to reverse any undesirable trends you have identified? How likely are these policies to be implemented and how successful are they likely to be?

In December 2013, Uruguay passed a law permitting the growing, distribution and consumption of marijuana. The legislation comes into effect in April 2014. The state will regulate the industry to ensure good quality strains of the crop are grown and sold. It will also tax the industry.

Uruguay is the first country to legalise cannabis, but in July 2012, Colorado and Washington states in the USA passed laws permitting the sale and possession of small amounts of the drug for recreational use. (It was already legal to possess the drug for medical use.) The laws took effect a few months later. It is heavily taxed, however, especially in Washington, where it is taxed at a rate of 25% three times over: when it is sold to the processor; when the processor sells it to the retailer; and when the retailer sells it to the consumer. In Massachusetts, Nevada and Oregon, medical cannabis shops will be permitted to open this year. In the Netherlands, although the sale of cannabis is still illegal, ‘coffee shops’ are permitted to sell people up to 5 grams per day.

So should cannabis be legalised? People have very strong views on the subject and this can make a calm assessment of the issue more difficult. The economist’s approach to legalising cannabis involves seeking to identify and measure the costs and benefits of doing so. If the benefits exceed the costs, then it should be legalised; if not, it should remain illegal (or made illegal). The problem is that the size of the costs and benefits are not easy calculate as they involve estimates of things such as consumption levels, tax revenues, crime reduction, the effects on the consumption of other drugs, including legal drugs such as alcohol and tobacco.

Nevertheless, various estimates of these costs and benefits have been made and provide a basis for discussion.

Possible benefits of cannabis legalisation include: increased tax revenues for the government; reduction in crime, and hence reduction in law enforcement and prison costs; encouraging people with addiction problems to seek help, as they would not fear arrest; reduction in the price, benefiting users; regulating quality of the drug; reducing the consumption of alcohol and more dangerous drugs if these are substitutes for cannabis; moral arguments concerning freedom of individuals to choose their lifestyle.

Possible costs include: increased consumption of cannabis, with attendant health and social side effects; increased consumption of other drugs if they are complements, or if cannabis is an ‘entry level’ drug to harder drugs; moral objections to drug taking.

Clearly some of these costs and benefits are easier to measure than others. Moral arguments are almost impossible to assess quantitatively, even when various underlying moral standpoints are agreed.

The following articles look at recent events and at the arguments, both economic and non-economic.

Articles

As Uruguay moves to legalise cannabis, is the ‘war on drugs’ finished? Metro (20/1/14)
Regulating the sale of marijuana: Global perspective Journalist’s Resource, John Wihbey (17/1/14)
Next Step in Uruguay: Competitive, Quality Marijuana Independent European Daily Express (IEDE) (12/1/14)
U.S. support for legalization of marijuana at an all-time HIGH Mail Online, Anna Edwards (7/1/14)
14 Ways Marijuana Legalization Could Boost The Economy Huffington Post, Harry Bradford (7/11/12)
Colorado pot legalization: 30 questions (and answers) The Denver Post, John Ingold (13/12/12)
Economists Predict Marijuana Legalization Will Produce ‘Public-Health Benefits’ Forbes, Jacob Sullum (1/11/13)

Papers
Economics of Cannabis Legalization Hemp Today, Dale Gieringer (10/10/93)
Pros & Cons of Legalizing Marijuana About.com: US Liberal Politics, Deborah White
Would Marijuana Legalization Increase the Demand for Marijuana? About.com: Economics, Mike Moffatt
Time to Legalize Marijuana? – 500+ Economists Endorse Marijuana Legalization About.com: Economics, Mike Moffatt
A cost benefit analysis of cannabis legalisation Institute for Social and Economic Research, University of Essex
Licensing and regulation of the cannabis market in England and Wales: Towards a cost–benefit analysis Institute for Social and Economic Research, University of Essex, Mark Bryan, Emilia Del Bono and Stephen Pudney (9/13)
What Can We Learn from the Dutch Cannabis Coffeeshop Experience? Rand Drug Policy Research Center, Robert J. MacCoun (7/10)

Podcast

Licensing and regulating the cannabis market in England and Wales Institute for Social and Economic Research, University of Essex, Stephen Pudney (15/9/13)

Questions

  1. If a country legalises cannabis, what is likely to happen to the price of cannabis? Use a demand and supply diagram to illustrate your argument, considering the effects on both demand and supply. How are the price elasticities of demand and supply relevant to your answer?
  2. What externalities are there from drug use?
  3. What externalities are there from making cannabis illegal?
  4. Distinguish between complementary and substitute goods for cannabis? How is the demand for these likely to be affected by legalising cannabis?
  5. Go through each of the benefits and costs of legalising cannabis and identify difficulties that might be experienced in quantifying these costs and benefits?
  6. If cannabis were legalised, how would you set about determining the optimum rate of tax on cannabis production, processing, distribution and sale?
  7. Consider the arguments for and against legalising cannabis from the perspective of (a) a free-market liberal and (b) a social democrat who sees government intervention as an important means of achieving various social goals.

When the rest of the developed world went into recession after the financial crisis of 2007/8, the Australian economy kept growing, albeit at a slightly lower rate (see chart 1: click here for a PowerPoint). Then as the world economy began to grow again after 2009, Australian grow accelerated. Partly this was the result of a strong growth in demand for Australian mineral exports, such as coal, iron ore and bauxite, especially from China and other east Asian countries.

But in 2013, Australian growth slowed and jobs grew by their lowest rate for 17 years. Employment actually fell by 22,600 in December and unemployment was only prevented from rising by a fall in the participation rate. The Australian dollar, which has been depreciating in recent months, fell further on the news about jobs, reaching its lowest level for over two years (see chart 2: click here for a PowerPoint).

      Chart 1
    Chart 2

The following articles look at the reasons behind Australia’s slowing growth and at possible reactions of the Australian government and the Reserve Bank of Australia (Australia’s central bank). They also look at the link between economic performance and policy on the one hand and the exchange rate on the other.

Aussie Hits a 4 Year Low As Jobs Picture Turns Grim FX Street, Boris Schlossberg (16/1/14)
Unemployment rises: Rate cut on the cards? The Motely Fool, Mike King (16/1/14)
Australia posts its lowest annual jobs growth in 17 years The Guardian (16/1/14)
Australian dollar drops to four-year low after unemployment figures released The Guardian (16/1/14)
Unemployment … Coming to a Suburb Near You Pro Bono Australia News (13/1/14)
Jobs disappear in growth crunch Sydney Morning Herald, Glenda Kwek (17/1/14)

Questions

  1. Why has Australian economic growth slowed?
  2. Why has the Australian dollar been depreciating in recent months?
  3. Why did the Australian dollar fall further on the news that economic growth had slowed and employment had fallen?
  4. Find out what has been happening to commodity prices in the past three years (see Economic Data freely available online and especially site 26) How has this affected (a) the current account of Australia’s balance of payments; (b) the exchange rate of the Australian dollar?
  5. If commodity prices are in US dollars, how is a depreciation of the Australian dollar likely to affect Australia’s balance of payments?
  6. How are possible fiscal and monetary responses in Australia likely to affect the exchange rate of the Australian dollar?
  7. What determines the magnitude of the rise or fall in demand for Australian exports as the world economy grows or declines? How are the determinants of the price and income elasticities of demand for Australian exports relevant to your answer?

Conservative Party leaders are considering the benefits of an above-inflation rise in the minimum wage. This policy has been advocated by both the Labour Party and the Liberal Democrats as a means of helping the lowest paid workers. From 2008 to 2013, minimum wage rates fell 5.2% in real terms: in other words, nominal increases were less than the increase in both the RPI and CPI (see UK minimum wage: a history in numbers).

Advocates of a real rise in the minimum wage argue that not only would it help low-paid workers, many of whom are in severe financial difficulties, but it would benefit the Treasury. According to Policy Exchange, a free-market think tank closely aligned to the Conservative Party, increasing the minimum wage by 50p would save the Government an estimated £750m a year through higher tax revenues and lower benefit payments.

But even such a rise to £6.81 would still leave the minimum wage substantially below the living wage of £8.80 in London and £7.65 in the rest of the UK, as estimated by the Living Wage Foundation (see The cost of a living wage). Although many businesses are now paying at least the living wage, many others, especially small businesses, argue that a rise in the minimum wage above the rate of inflation would force them to consider cutting the number of employees or reducing hours for part-time workers.

Meanwhile, in the USA 13 states have raised their minimum wage rates from the 1st January 2014 (see). Some of the rises, however, were tiny: as little as 15 cents. In a couple of cases, the rise is $1. Currently 21 states and DC have minimum wage rates above the Federal level of $7.25 (approx. £4.40); 20 states have rates the same as the Federal level; 4 states have rates below the Federal level. At $9.32 per hour, Washington State has the highest state minimum wage; the lowest rates ($5.15) are in Georgia and Wyoming. In 5 states there is no minimum wage at all. As the ABC article below states:

The piecemeal increases at the local level are occurring amidst a national debate over low wages and income inequality. Fast food and retail workers have been staging protests and walking off work for more than a year, calling for better pay and more hours. Currently, fast food workers nationally earn an average of about $9 per hour.

Workers from McDonald’s, Wendy’s, Burger King and other fast food joints are calling for $15 per hour. Wal-Mart workers organizing as part of the union-backed OUR Walmart aren’t asking for a specific dollar amount increase, but they say it’s impossible to live on the wages they currently receive.

President Obama has been throwing his weight behind the issue. Earlier this month, the President said in a speech that it’s “well past the time to raise the minimum wage that in real terms right now is below where it was when Harry Truman was in office.” But such legislation has a bleaker outlook if it reaches the Republican-led House of Representatives. House Speaker John Boehner has said that raising the minimum wage leads to a pullback in hiring.

So what are the costs and benefits of a significant real rise is the minimum wage on either side of the Atlantic? The articles explore the issues.

Articles: UK
Lib Dems accuse Tories of ‘stealing’ their policy as George Osborne prepares to approve above-inflation rise in minimum wage Independent, Andrew Grice (7/1/14)
Lib Dems accuse Tories of ‘nicking’ party’s policy on low wages The Guardian, Nicholas Watt (7/1/14)
Cut housing benefit? A higher minimum wage would help The Guardian, Patrick Collinson (6/1/14)
Miliband prepares to wage war The Scotsman, Andrew Whitaker (8/1/14)
Increasing the minimum wage is only a half answer to poverty New Statesman, Helen Barnard (8/1/14)
Raise the bar: Economically and socially, Britain needs higher wages Independent (7/1/14)
Another Tory says there’s a ‘strong case’ for raising the minimum wage The Spectator, Isabel Hardman (8/1/14)
Fairness and the minimum wage Financial Times (7/1/14)
Osborne wants above-inflation minimum wage rise BBC News (16/1/14)
George Osborne backs minimum wage rise to £7 an hour The Guardian, Nicholas Watt, (16/1/14)
Minimum wage: in his efforts to defeat Labour, Osborne risks mimicking them The Telegraph, Benedict Brogan (16/1/14)
Minimum wage announcement is not just good economics The Guardian, Larry Elliott (16/1/14)

Articles: USA
13 states raising pay for minimum-wage workers USA Today, Paul Davidson (30/12/13)
Minimum wage increase: Wage to rise in 13 states on Jan. 1 ABC15 (30/12/13)
NJ minimum wage sees $1 bump on Jan. 1 Bloomberg Businessweek, Angela Delli Santi (31/12/13)
Minimum wage hike a job killer ctpost, Rick Torres (7/1/14)
A Business Owners Case For Raising The Minimum Wage Grundy Country Herald, David Bolotsky (7/1/14)
Raising the Minimum Wage Isn’t Just Good Politics. It’s Good Economics, Too. New Republic, Noam Scheiber (31/12/13)
Minimum wage rises across 13 US states Financial Times, James Politi (1/1/14)

Information
National Minimum Wage rates GOV.UK
UK minimum wage: a history in numbers Guardian Datablog
List of minimum wages by country Wikipedia

Questions

  1. Draw two diagrams to demonstrate the direct microeconomic effect of a rise in the minimum wage for two employers, both currently paying the minimum wage, where the first is operating in an otherwise competitive labour market and the other is a monopsonist.
  2. What is meant by the term ‘efficiency wage rate’? How is the concept relevant to the debate about the effects of raising the minimum wage rate?
  3. What are the likely macroeconomic effects of raising the minimum wage rate?
  4. What is the likely impact of raising the minimum wage rate on public finances?
  5. Is raising the minimum wage rate the best means of tackling poverty? Explain your answer.