Employment and Unemployment - Measures of Economic Performance

Start with the population of working age (typically 16–64). Everyone in it is either in the labour force (economically active) or economically inactive.

• Employment — being in paid work, whether employed by a firm or self-employed. This includes part-time and temporary work.
• Unemployment — being without a job, able and available to work, and actively seeking work. All three conditions must hold. Someone who is jobless but not looking is not counted as unemployed.
• Underemployment — being in work but not fully using your labour: either working fewer hours than you want (part-time when you want full-time) or in a job below your skill level (a qualified engineer driving a taxi). The underemployed are employed, so they do not appear in the unemployment figures — which is one reason those figures can understate the real slack in the labour market.
• The economically inactive — people of working age who are neither working nor seeking work: students in full-time education, the retired, those caring for family, the long-term sick, and discouraged workers who have given up looking.

The labour force (or working population) is therefore:

$\text{Labour force} = \text{employed} + \text{unemployed}$

The crucial exam distinction is between the unemployed and the economically inactive. Both are jobless, but only the unemployed are actively seeking work. Move someone from "unemployed" to "inactive" (they stop looking) and, paradoxically, measured unemployment falls even though no one got a job — a trap examiners love to set.

In the diagram, the working-age population splits into the labour force (the economically active) and the economically inactive. The labour force itself splits into the employed and the unemployed. Only the two boxes inside the labour force count when we measure unemployment.

Two rates matter, and students routinely confuse them because both look like "percentages of people".

The participation rate (also called the activity rate) measures how much of the working-age population is economically active — in or seeking work:

$\text{Participation rate} = \frac{\text{labour force}}{\text{working-age population}} \times 100$

A rise in the participation rate (e.g. more women entering the workforce, or a later retirement age) increases the size of the labour force.

The unemployment rate measures how much of the labour force is unemployed — note the denominator is the labour force, not the whole population:

$\text{Unemployment rate} = \frac{\text{number unemployed}}{\text{labour force}} \times 100$

Worked example. Suppose a country has a working-age population of 40 million. Of these, 28 million are employed and 2 million are unemployed; the remaining 10 million are economically inactive.

• Labour force = employed + unemployed = $28 + 2 = 30$ million.
• Unemployment rate = $\dfrac{2}{30} \times 100 = 6.7\%$ (to 1 d.p.).
• Participation rate = $\dfrac{30}{40} \times 100 = 75\%$.

Notice the unemployment rate uses 30 million (the labour force) as the denominator, not 40 million (the whole population). Dividing by the wrong base is the single most common calculation slip in this topic — it would give $\frac{2}{40} = 5\%$, which is wrong.

Number vs rate. Watch the difference between the number unemployed and the unemployment rate. If the labour force grows (e.g. through immigration or higher participation), the number unemployed can rise while the rate falls, because the denominator has grown faster. Always read whether a question asks for the number or the rate — and always show your working in a calculation question.

Because "actively seeking work" is hard to observe directly, countries use two main measures, and they rarely give the same number.

1. The ILO measure (Labour Force Survey, LFS). The International Labour Organization defines the unemployed as those who are without a job, available to start within two weeks, and have actively looked for work in the last four weeks. It is estimated from a large sample survey of households (the Labour Force Survey). Because it is based on an internationally agreed definition, it allows comparison between countries and is the headline measure.

2. The claimant count. This simply counts the people claiming unemployment-related benefits (e.g. Jobseeker's Allowance / Universal Credit conditions). It comes from administrative records, so it is cheap, quick and precise to compile.

The two differ — and each has limitations:

	ILO / Labour Force Survey	Claimant count
Who is counted	Anyone seeking work (whether or not they claim benefit)	Only those claiming unemployment benefit
Source	Sample survey of households	Administrative benefit records
Usual size	Higher (wider definition)	Lower (narrower)
Main limitation	Sampling error; survey lag and cost	Excludes those seeking work but ineligible for / not claiming benefit; distorted by benefit-rule changes

The claimant count is usually lower than the ILO figure because many people who are genuinely seeking work do not claim benefit — for example, they may be ineligible (a partner's income, savings, or being a new labour-market entrant), or simply choose not to. A government can even lower the claimant count without reducing unemployment by tightening the rules for who can claim, which is exactly why the ILO measure is preferred for judging the real state of the labour market.

Neither measure captures underemployment or discouraged workers, so both can understate the true amount of spare capacity in the labour market.

Examiners want you to name the cause, define it, and give an example. There are five main types.

1. Frictional unemployment. Short-term unemployment as people move between jobs — searching, applying, waiting to start. It exists even in a healthy economy because job matching takes time. Example: a graduate spending two months finding their first job. It is largely voluntary and usually short-lived.

2. Structural unemployment. A mismatch between the skills or location of the unemployed and the jobs available, caused by a long-term change in the structure of the economy — an industry declines and its workers' skills are no longer demanded. Example: coal miners or steelworkers made unemployed as those industries close, unable to fill vacancies in, say, software. It tends to be long-term and involuntary, and includes occupational and geographical immobility.

3. Seasonal unemployment. Unemployment that recurs at particular times of the year because demand for certain labour is seasonal. Example: ski instructors in summer, or fruit pickers and seaside hotel staff in winter. It is predictable and temporary.

4. Cyclical (demand-deficient) unemployment. Unemployment caused by a fall in aggregate demand during a downturn or recession. As spending falls, firms produce less and lay workers off across the whole economy. Example: widespread job losses during the 2008–09 recession. It is involuntary and is the type governments most target with demand-side policy. See the diagram below.

5. Real-wage (classical) unemployment. Unemployment caused when the real wage is held above the market-clearing level, so the quantity of labour supplied exceeds the quantity demanded — an excess supply of labour. Example: a minimum wage set above equilibrium, or strong trade-union bargaining pushing wages up. It is involuntary for those who would work at the equilibrium wage.

In the diagram, aggregate demand falls from AD₀ to AD₁ (e.g. a slump in consumer and investment spending). Equilibrium moves from E₀ — at full-employment output Yf — to E₁ at the lower output Y₁. Firms need fewer workers to produce less, so the gap between Y₁ and Yf represents lost output and cyclical (demand-deficient) unemployment.

Voluntary vs involuntary. Voluntary unemployment is where a person is unwilling to accept a job at the going wage rate (e.g. holding out for a better offer, or where benefits make low-paid work unattractive) — much frictional and some real-wage unemployment is voluntary. Involuntary unemployment is where a person is willing to work at the going wage but cannot find a job — cyclical and structural unemployment are largely involuntary. The distinction matters for policy: involuntary unemployment is the stronger case for government action.

The significance of migration. Net immigration of working-age people increases the labour force (both the employed and those seeking work). Its effect on unemployment depends on whether the economy generates enough jobs: if migrants fill genuine skill shortages and spend their incomes (raising AD), employment can rise with little effect on the unemployment rate; if jobs do not expand, the larger labour force can raise measured unemployment in the short run. Migration also affects the participation rate, the age structure of the workforce, and — because migrants often go where jobs are — can reduce structural/geographical unemployment by improving labour mobility. Net emigration shrinks the labour force and can worsen skill shortages (a "brain drain").

The costs of unemployment. These are a favourite AO3 chain and split cleanly by who bears them:

Who	Cost of unemployment
Individuals	Lost income and lower living standards; loss of skills and confidence; stress, ill-health and social exclusion; hysteresis (the longer out of work, the harder to return).
Firms	Lower consumer spending (weaker demand for their products); but a larger pool of available labour can lower wage pressure.
Government	Higher spending on unemployment benefits; lower tax revenue (less income tax, VAT, National Insurance) — a worsening budget position; possible rise in crime and health spending.
The economy	Lost output — the economy produces inside its PPF, so goods and services that could have been made are lost forever; lower potential growth if long-term unemployment erodes the workforce's skills.

Hysteresis deserves special mention: prolonged unemployment can become self-perpetuating. The long-term unemployed lose skills, up-to-date experience and motivation, and employers may screen them out — so a temporary rise in unemployment (e.g. from a recession) can raise the economy's long-run or "natural" rate of unemployment. This is why economists warn against letting cyclical unemployment persist.

One caveat for balance: a small amount of frictional unemployment is normal and even healthy — it reflects a flexible labour market where people move to better-matched jobs. The damaging kind is high, long-term, involuntary unemployment.