Unemployment: WACE Year 12 Economics Unit 4
“Define and measure unemployment and the participation rate, distinguish the types of unemployment, explain the concept of full employment and the NAIRU, and analyse the costs of unemployment”
Unemployment is the number of people willing and able to work who cannot find a job, measured by the ABS as a percentage of the labour force. There are several types (cyclical, structural, frictional, seasonal and others). Full employment is not zero unemployment but the level where cyclical unemployment is gone, known as the NAIRU. Unemployment carries heavy economic and social costs.
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What this dot point is asking
SCSA wants you to define and calculate the unemployment and participation rates, distinguish the types, explain full employment and the NAIRU, and analyse the costs. Expect a labour-force calculation and a short or extended response.
Measuring unemployment
A person is unemployed if they are of working age, without work, actively seeking work and available to start. The labour force is the sum of the employed and the unemployed. People not seeking work are outside the labour force.
Unemployment rate = (number unemployed / labour force) x 100. Participation rate = (labour force / working-age population) x 100. For example, with 0.7 million unemployed and a labour force of 14 million, the unemployment rate is 5 percent.
The ABS measures these monthly through the labour force survey. Note that working even one hour counts as employed, which is why economists also track underemployment (people who want more hours) and the hidden unemployed (discouraged job-seekers who have stopped looking and so are not counted).
Types of unemployment
- Cyclical (demand-deficient): caused by a downturn in the business cycle when aggregate demand is too low. This is the type policy stimulus targets.
- Structural: a mismatch between the skills or location of workers and the jobs available, often caused by technological change or industry decline.
- Frictional: short-term unemployment as people move between jobs.
- Seasonal: tied to seasonal patterns such as harvests and holiday retail.
- Hard-core and long-term: people who face persistent barriers to employment.
After the COVID-19 shock pushed unemployment above 7 percent in 2020, Australia's labour market recovered strongly, with the unemployment rate falling to around 3.5 percent in 2022 and 2023, near a 50-year low. This tight labour market contributed to wage and inflation pressure, illustrating the trade-off the RBA must manage between unemployment and inflation.
Full employment and the NAIRU
Full employment does not mean zero unemployment, because frictional and structural unemployment always exist even in a strong economy.
Full employment is the level of unemployment at which cyclical unemployment has been eliminated and only frictional, structural and seasonal unemployment remain. The non-accelerating inflation rate of unemployment (NAIRU) is the lowest unemployment rate the economy can sustain without triggering accelerating inflation.
Pushing unemployment below the NAIRU through demand stimulus tends to generate wage and price inflation, which is why the RBA cannot aim for zero unemployment. Estimates of Australia's NAIRU have been revised down over time toward the low-to-mid 4 percent range.
Costs of unemployment
- Lost output: the economy produces below capacity, forgoing goods and services permanently.
- Lower incomes and living standards for the unemployed and their families.
- Higher budget cost: more welfare spending and less tax revenue.
- Social costs: poorer physical and mental health, family stress, crime and erosion of skills (hysteresis), where long spells of unemployment make workers permanently less employable.
Suppose the unemployment rate falls from 5.0 to 4.6 percent. That looks like a stronger labour market. But check the participation rate: if it fell at the same time because discouraged workers stopped looking, the improvement may be illusory, since those people simply left the labour force rather than finding jobs. Always read the unemployment rate alongside participation and underemployment.
Full employment is not a zero unemployment rate. Frictional and structural unemployment persist even in a booming economy, so full employment is the NAIRU, the lowest sustainable rate consistent with stable inflation. Aiming for zero unemployment would force the economy past the NAIRU and accelerate inflation.
Exam-style questions
Questions in the style of SCSA exam questions on this dot point, each with a worked answer. They are written by ExamExplained unless tagged "Past paper"; the year shows the paper a question is modelled on.
WACE 2023-style6 marksAn economy has a working-age population of 20 million, a labour force of 13 million and 0.65 million unemployed. Calculate the unemployment rate and the participation rate, and explain why the unemployment rate alone can understate labour market slack.Show worked answer →
A 6 mark response needs both calculations and the slack point.
Unemployment rate. percent.
Participation rate. percent.
Understated slack. The headline rate counts anyone who worked even one hour as employed, so it omits underemployment (people who want more hours). It also omits the hidden unemployed (discouraged workers who have stopped looking and so leave the labour force), which can make the unemployment rate fall even when slack remains. Reading it alongside participation and underemployment gives a truer picture.
Markers reward both correct calculations and at least two reasons (underemployment, hidden unemployed) the headline rate understates slack.
WACE 2022-style8 marksDistinguish between the main types of unemployment and analyse the economic and social costs of high unemployment.Show worked answer →
An 8 mark response needs the types and the costs.
Types. Cyclical (demand-deficient, from a downturn, the target of stimulus); structural (skills or location mismatch from technological change or industry decline); frictional (short-term, between jobs); and seasonal (tied to seasonal patterns). Long-term and hard-core unemployment reflect persistent barriers.
Economic costs. Lost output as the economy produces below capacity, lower incomes for the unemployed, and a higher budget cost (more welfare spending, less tax revenue).
Social costs. Poorer physical and mental health, family stress, and erosion of skills (hysteresis), where long spells make workers permanently less employable, raising structural unemployment.
Markers reward at least three types correctly distinguished and both economic and social costs.