CFA Level I Exam · Understanding Business Cycles

Unemployment and Inflation Measures Explained for CFA Level 1

Q: How do you calculate the unemployment rate?

Divide the number of unemployed people by the labor force, which is employed plus unemployed. Only people actively looking for work count as unemployed. People not looking are outside the labor force.

Q: What is the difference between deflation and disinflation?

Disinflation means the inflation rate is falling but still positive, so prices rise more slowly. Deflation means the inflation rate is negative, so the general price level falls.

Q: What is the difference between frictional, structural and cyclical unemployment?

Frictional comes from the time needed to match workers with jobs. Structural comes from a mismatch of skills or location. Cyclical comes from weak demand during a downturn and falls in a recovery.

Q: What is the difference between CPI and PPI?

CPI measures the prices of a basket bought by consumers. PPI measures prices received by producers. PPI changes can sometimes feed through to consumer prices later, but not always.

Q: Why is core inflation used?

Core inflation removes food and energy prices, which are volatile. This gives a clearer view of the underlying inflation trend, which is useful for policy analysis.

Updated 6 October 2026 · Fact-checked

Unemployment measures count people without work who are actively seeking it, as a share of the labor force. Inflation measures track the rate of rise in a price index such as CPI. To solve questions, identify the definition, apply the ratio or percentage change formula, and check whether prices are rising slower, falling, or rising faster.

Understand Unemployment and Inflation Measures

The labor force is everyone of working age who is either employed or unemployed. A person counts as unemployed only if they have no job, are available to work, and are actively looking. People who are not working and not looking, such as full-time students, retirees and discouraged workers, are outside the labor force.

The unemployment rate is the number of unemployed divided by the labor force. The labor force participation rate is the labor force divided by the working-age population. A rising unemployment rate can come from job losses, but it can also rise when discouraged workers start looking again. A falling rate can happen because people give up searching, which shrinks the labor force. Also, the headline rate does not capture underemployment, such as part-time workers who want full-time jobs.

There are three classic types of unemployment. Frictional unemployment is short-term, from the time it takes to move between jobs or enter the market. Structural unemployment comes from a mismatch between workers' skills or location and available jobs, often after technology or industry shifts. Cyclical unemployment comes from weak demand in a downturn and rises and falls with the business cycle. The natural rate of unemployment is roughly the rate with no cyclical unemployment, so it includes frictional and structural unemployment. A related idea is long-term unemployment, which is a duration measure, not a separate cause.

Inflation is a sustained rise in the general price level. It is measured by the percentage change in a price index. The Consumer Price Index (CPI) prices a fixed basket of goods and services bought by typical households. The Producer Price Index (PPI) tracks prices received by producers at the wholesale level, so it often moves ahead of consumer prices. Core inflation excludes food and energy because their prices are volatile, giving a cleaner view of the underlying trend.

Three terms are easy to confuse. Inflation means the price level rises. Disinflation means inflation is still positive but falling, so prices rise more slowly. Deflation means the price level is falling, so the inflation rate is negative. CPI can overstate true cost-of-living changes because of substitution bias (people switch to cheaper goods), new-goods bias and quality bias. Indexes such as the Laspeyres (fixed base-period basket) and Paasche (current-period basket) differ in the weights they use. Chained and Fisher indexes reduce substitution bias.

Key formulas to remember

Labor force: Labor force = Employed + Unemployed; Unemployed means jobless, available and actively seeking work.
Unemployment rate: Unemployment rate = Unemployed ÷ Labor force; The denominator is the labor force, not the population.
Labor force participation rate: Participation rate = Labor force ÷ Working-age population; Discouraged workers are outside the labor force.
Inflation rate: Inflation = (Index_t ÷ Index_t-1) − 1; Use the same index and consistent periods.
Laspeyres vs Paasche: Laspeyres = Σ(P_t × Q_0) ÷ Σ(P_0 × Q_0) × 100; Paasche = Σ(P_t × Q_t) ÷ Σ(P_0 × Q_t) × 100; Here P is price and Q is quantity, with 0 as the base period and t as the current period. Laspeyres uses a fixed base-period basket and tends to overstate inflation because of substitution bias. Paasche uses current-period weights and tends to understate inflation.
Disinflation vs deflation: Disinflation: inflation rate falls but stays > 0. Deflation: inflation rate < 0; Compare the rate, not the price level.

How to solve Unemployment and Inflation Measures questions

Use this sequence for any question on unemployment or inflation measures.

1Identify whether the question is about labor data, a price index, or a concept definition.
2For labor data, classify each group as employed, unemployed (jobless and searching) or outside the labor force.
3Compute the labor force first, then the unemployment rate or participation rate with the right denominator.
4For unemployment type, ask the cause: job transition means frictional, skills or location mismatch means structural, weak demand means cyclical.
5For inflation, compute the percentage change in the index between the two dates given.
6For terms, compare consecutive inflation rates: still positive but lower is disinflation, negative is deflation.
7For index comparisons, note what the index covers: CPI for consumers, PPI for producers, core excludes food and energy.
8Eliminate the two options that violate a definition or use the wrong denominator.

Quickest way: Denominator and direction check

When to use it: Use this for ratio and terminology questions when you have about 90 seconds.

Write the labor force as Employed + Unemployed before anything else.
Remove anyone not searching from both the numerator and denominator.
Check whether the answer asks for unemployment rate (labor force) or participation (working-age population).
For inflation terms, write the two inflation rates side by side and see if they are positive, falling or negative.
Pick the option that matches, and discard options that use the wrong base.

Common mistakes in Unemployment and Inflation Measures

Counting discouraged workers or students as unemployed.
Everyday language treats anyone without a job as unemployed.
Fix: Only jobless people who are available and actively seeking work count as unemployed.
Dividing unemployed by the working-age population.
Mixing up the unemployment rate and participation rate.
Fix: Unemployment rate uses the labor force; participation rate uses the working-age population.
Calling falling inflation deflation.
Both involve prices behaving 'lower' than before.
Fix: Disinflation is a lower but positive inflation rate. Deflation requires a negative inflation rate, meaning the price level falls.
Assuming a falling unemployment rate always means a stronger job market.
The rate looks like a pure jobs signal.
Fix: The rate can fall if people leave the labor force. Check participation as well.
Treating structural and cyclical unemployment as the same.
Both involve people losing jobs.
Fix: Cyclical is caused by weak demand and reverses in recovery. Structural is a skills or location mismatch that persists.
Using headline CPI when the question asks for the underlying trend.
Core and headline sound similar.
Fix: Core inflation excludes food and energy, so it is the better measure of the underlying trend.

Worked examples

Example 1

An economy has a working-age population of 20,000,000. There are 11,400,000 employed people and 600,000 unemployed people actively seeking work. Another 8,000,000 are not working and not looking. What is the unemployment rate? A) 3.0%, B) 5.0%, C) 5.3%.

Show the solution

Labor force = 11,400,000 + 600,000 = 12,000,000.
Check: 12,000,000 + 8,000,000 = 20,000,000, which matches the population.
Unemployment rate = 600,000 ÷ 12,000,000 = 5.0%.
Option A (3.0%) is a trap. It comes from dividing unemployed by the working-age population: 600,000 ÷ 20,000,000 = 3.0%. That is the wrong base.
Option C (5.3%) is also a trap. It comes from dividing unemployed by employed people only: 600,000 ÷ 11,400,000 = about 5.3%. That is the wrong denominator too.

Answer: The unemployment rate is 5.0%, so option B.

Example 2

A consumer price index is 120.0 at the end of Year 1, 126.0 at the end of Year 2, and 129.78 at the end of Year 3. Which term best describes the change in the inflation rate from Year 2 to Year 3? A) Deflation, B) Disinflation, C) Inflation acceleration.

Show the solution

Year 2 inflation = 126.0 ÷ 120.0 − 1 = 0.05 = 5.0%.
Year 3 inflation = 129.78 ÷ 126.0 − 1 = 0.03 = 3.0%.
Inflation fell from 5.0% to 3.0% but remains positive.
The price level is still rising, so it is not deflation.
The inflation rate fell rather than rose, so it is not inflation acceleration.

Answer: Disinflation, option B.

Exam tips

Always compute the labor force first; many questions hide it behind extra categories like discouraged workers.
Read the question for the rate of change of inflation, not the price level, when you see deflation or disinflation.
Match unemployment type to the cause in the stem: a job search gap, a skills mismatch, or a demand slump.
With three options, test the trap answers first: the wrong denominator and the wrong term usually fill two slots.
Remember CPI bias sources and that core inflation excludes food and energy; these are common concept questions.

Practice questions from Understanding Business Cycles

Unemployment and Inflation Measures in other exams

The same ground in other exams, if you are preparing for more than one or want another angle on it.

Actuarial Core Principles (IAI)Inflation, Deflation and Unemployment

Unemployment and Inflation Measures: frequently asked questions

How do you calculate the unemployment rate?

Divide the number of unemployed people by the labor force, which is employed plus unemployed. Only people actively looking for work count as unemployed. People not looking are outside the labor force.

What is the difference between deflation and disinflation?

Disinflation means the inflation rate is falling but still positive, so prices rise more slowly. Deflation means the inflation rate is negative, so the general price level falls.

What is the difference between frictional, structural and cyclical unemployment?

Frictional comes from the time needed to match workers with jobs. Structural comes from a mismatch of skills or location. Cyclical comes from weak demand during a downturn and falls in a recovery.

What is the difference between CPI and PPI?

CPI measures the prices of a basket bought by consumers. PPI measures prices received by producers. PPI changes can sometimes feed through to consumer prices later, but not always.

Why is core inflation used?

Core inflation removes food and energy prices, which are volatile. This gives a clearer view of the underlying inflation trend, which is useful for policy analysis.