← Unit 2: Macroeconomic Performance & Policy

Measures of Economic Performance Model Answers

Section 2.3.1 — Annotated model answers for CPI, inflation, unemployment, and measuring economic performance.

These model answers demonstrate how to structure responses for Edexcel International A-Level (IAL) Economics and Business exams. Each answer includes a mark scheme breakdown, PEEL structure (where applicable), annotated paragraphs, and examiner commentary explaining what earns marks at each band.
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4 marks
Unit 2 · 2.3.1 Measures of Economic Performance · Knowledge & Application
Explain: how the Consumer Price Index (CPI) is used to measure inflation.
Mark Scheme Breakdown
1–2 marksDefinition of CPI and/or inflation
3–4 marksExplanation of method (basket of goods, weighted, base year comparison)
KKnowledge/Definition
AApplication
Model Answer
Inflation is a sustained rise in the general price level of goods and services in an economy over time. K The Consumer Price Index (CPI) is the main measure used to track inflation in the UK. K

CPI measures inflation by tracking the prices of a representative basket of approximately 700 goods and services, weighted according to typical household spending patterns. A The basket is updated annually to reflect changing consumption habits — for example, streaming subscriptions have been added in recent years while DVD players have been removed. Prices are compared to a base year (index = 100). If the CPI rises from 100 to 103, this indicates an inflation rate of 3%. A
Examiner Commentary

Full marks require both a definition of inflation (sustained rise in the general price level) and an explanation of the CPI method. Candidates should mention the basket of goods, weighting, and base year comparison. Simply stating "CPI measures prices" without explaining how earns only 1–2 marks.

Likely Score4 / 4
8 marks
Unit 2 · 2.3.1 Measures of Economic Performance · Analysis
Analyse: the different types of unemployment in an economy.
Mark Scheme Breakdown
1–2 marksKnowledge: definition of unemployment and/or types identified
3–4 marksApplication: examples of each type with real-world context
5–8 marksAnalysis: developed reasoning on causes, consequences, and policy implications of each type
PEEL Structure
P
Point

Unemployment has different causes requiring different policy responses.

E
Evidence

E.g. UK claimant count data shows regional variation linked to structural change in former industrial areas.

E
Explain

Cyclical unemployment arises from demand deficiency, structural from changing industry composition, frictional from job search, and seasonal from time-dependent demand patterns.

L
Link

Identifying the type matters because each requires different policy — demand-side stimulus for cyclical, supply-side intervention for structural.

KKnowledge
AApplication
AnAnalysis chain
Model Answer
Para 1
Unemployment occurs when individuals who are willing and able to work cannot find a job at the prevailing wage rate. K It is measured in the UK using the ILO Labour Force Survey and the claimant count. Understanding the type of unemployment is essential because each has different causes and requires different policy solutions. K
Para 2
Cyclical (demand-deficient) unemployment occurs during economic downturns when aggregate demand falls. K As firms experience lower sales, they reduce output and lay off workers. For example, during the 2008–09 recession, UK unemployment rose from 5.2% to 8% as consumer spending and business investment collapsed. A This type can be addressed through demand-side policies such as cutting interest rates or increasing government spending to boost AD. An

Structural unemployment arises from a mismatch between workers' skills and the skills demanded by employers, often caused by long-term changes in the structure of the economy. K For example, the decline of coal mining and manufacturing in northern England left many workers without the skills needed for new service-sector jobs. A Structural unemployment requires supply-side policies such as education, retraining programmes, and subsidies for geographical mobility. An
Para 3
Frictional unemployment is short-term unemployment that occurs when workers are between jobs, searching for a role that matches their skills. K It exists in all economies and is generally considered unavoidable — it can be reduced through better information provision, such as online job platforms, which speed up the matching process. An Seasonal unemployment occurs in industries where demand is time-dependent — for example, agricultural workers after harvest season or hospitality staff after the summer tourism period. A The key analytical insight is that policy-makers must diagnose the type of unemployment correctly before choosing a response: expansionary fiscal or monetary policy is appropriate for cyclical unemployment but would cause inflation without reducing structural unemployment, which requires targeted supply-side reform. An
Examiner Commentary

Top-band answers go beyond listing types and develop the policy implications of each. The 2008–09 recession example and the decline of UK manufacturing ground the analysis in real-world context. The concluding point — that demand-side policy is ineffective against structural unemployment — shows the evaluative depth that distinguishes top candidates. Examiners reward candidates who link types of unemployment to specific, appropriate policy responses.

Likely Score7–8 / 8
4 marks
Unit 2 · 2.3.1 Measures of Economic Performance · Knowledge & Application
Explain: two limitations of using CPI as a measure of inflation.
Mark Scheme Breakdown
1–2 marksOne limitation identified and explained
3–4 marksSecond limitation identified and explained with development
KKnowledge
AApplication
Model Answer
First, the CPI uses a fixed basket of goods that may not reflect individual spending patterns. K A pensioner who spends heavily on heating will experience a different inflation rate than a student spending on rent and transport. The CPI gives an average that may not match any household's actual experience. A

Second, the CPI is slow to include new products and may not capture quality improvements. K If a smartphone costs the same as last year but has significantly better features, the true cost per unit of quality has fallen — but the CPI records no change. This means CPI may overstate inflation by ignoring quality-adjusted price falls. A
Examiner Commentary

Two distinct limitations, each with development. The basket composition and quality adjustment points are the two most commonly rewarded answers. Avoid vague limitations like "it is inaccurate" — always explain why.

Likely Score4 / 4

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