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1.2.1

Sectors lesson

AS Level • Topic 1.2.1

Economic Sectors

Understanding the structure of modern economies and sectoral evolution

The Four Sectors Framework

Primary Sector

Extraction of raw materials from the earth (farming, mining, fishing, forestry, oil drilling)

Secondary Sector

Manufacturing and construction - transforming raw materials into finished goods (factories, construction firms)

Tertiary Sector

Services to consumers and businesses (retail, banking, hospitality, transportation, healthcare)

Quaternary Sector

Knowledge and information-based activities (IT, research & development, consultancy, data analysis)

Interactive Activity: The Sector Sorter

Drag each business into the correct economic sector. Think about what the business actually does.

Available Businesses

Coal Mine
Car Factory
Hairdresser
Software Developer
Oil Rig
Steel Mill
Restaurant
AI Research Lab

PRIMARY SECTOR

SECONDARY SECTOR

TERTIARY SECTOR

QUATERNARY SECTOR

Economy Evolution Timeline

Explore how the economic structure has transformed from 1900 to 2024 - this is called structural change or de-industrialization in developed economies.

Select Year:1900
1900195019802024

1900 Economic Structure

Agricultural dominance, early industrialization

Primary Sector60%
Secondary Sector25%
Tertiary Sector10%
Quaternary Sector5%

Simulation: Factory Relocation

What happens when a UK car factory moves production to China to reduce labour costs?

Public vs Private Sectors

Economic sectors can also be classified by ownership: who controls the business and what are their objectives?

PUBLIC SECTOR

  • •Ownership: State-owned (Government)
  • •Objective: Provide essential services to citizens
  • •Focus: Social welfare, not profit maximization
  • •Examples: NHS, Police, Public Schools, Military

PRIVATE SECTOR

  • •Ownership: Individual or shareholder-owned
  • •Objective: Profit maximization for owners
  • •Focus: Financial returns, shareholder value
  • •Examples: Tesco, Apple, Private Hospitals, Banks

The Hospital Debate

Should hospitals operate in the public or private sector? Select a scenario to explore the trade-offs.

Key Exam Concepts: De-industrialization

Chain of Analysis: Manufacturing costs rise in developed countries due to higher wage demands → Companies relocate factories to developing countries (China, Vietnam) with cheaper labour → Secondary sector employment falls in UK → Workers transition to Tertiary sector (retail, logistics) → Quaternary sector grows as economy focuses on high-value services (finance, IT, consulting).

Consequence: Developed economies experience structural unemployment in manufacturing regions, but GDP may still grow through service exports and intellectual property.

Evaluation: While de-industrialization creates short-term job losses, it allows economies to specialize in higher-value activities. However, this depends on workforce retraining and whether displaced workers have the skills for tertiary/quaternary jobs.

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