Pearson Edexcel International GCSE Economics: Factors of production, sectors and productivity (4EC1)

This guide covers sections 1.2.1 (Production) and 1.2.2 (Productivity and division of labour) of the Pearson Edexcel International GCSE Economics (4EC1) specification, Issue 3, February 2026. It is a single tier of entry, so everything here is for every candidate. The content sits in Paper 1: Microeconomics and Business Economics. Every figure below is invented and illustrative: no real country, firm or statistic is being described.

Related pages: revision notes, practice questions, the wider production and business costs guide, the course hub, the checklist and the free diagnostics.

What you must be able to do

Section	Outcome
1.2.1 a	Describe land, labour, capital and enterprise
1.2.1 b	Describe the primary, secondary and tertiary sectors
1.2.1 c	Explain how the importance of the sectors, in employment and output, changes over time in developing and developed economies
1.2.2 a	Define productivity
1.2.2 b	Explain what affects productivity: land (fertiliser, drainage, irrigation, reclamation), labour (quality, education and training, migration), capital (quantity, technology)
1.2.2 c	Define division of labour
1.2.2 d	Weigh the advantages and disadvantages of division of labour for workers and businesses

1.2.1 a: The four factors of production

Factors of production are the resources used to make goods and services.

• Land: all natural resources, such as soil, water, minerals, forests and fish stocks. It is not only the ground itself.
• Labour: the mental and physical effort of people in production.
• Capital: man-made goods used to produce other goods and services, such as machines, tools, vehicles and factory buildings. This is physical capital, not money.
• Enterprise: organising the other three factors, taking decisions and accepting the risk that the venture fails.

For a small bakery: the plot and the water supply are land, the bakers and the counter staff are labour, the ovens and mixers are capital, and the owner who decided to open, raised the funds and carries the risk supplies enterprise.

1.2.1 b: The three sectors

Sector	What it does	Examples
Primary	Extracts or grows natural resources	Farming, fishing, mining, forestry
Secondary	Turns raw materials into other goods	Manufacturing, construction, food processing
Tertiary	Provides services	Retail, banking, teaching, transport, healthcare

Classify by what the activity does. A bakery that mixes and bakes bread is secondary. The same business selling a loaf over the counter is tertiary activity. Many firms span two sectors.

1.2.1 c: How the sectors change over time

The usual pattern is a shift of employment and output from primary to secondary to tertiary as an economy develops. Use “usually” and “tends to”: there are exceptions, such as a country whose output stays mainly primary because it is rich in a mineral.

Developing economies often have a large primary sector, with most workers on farms. As they industrialise, the secondary sector grows, then services grow as incomes rise.

Developed economies have a small primary sector and a tertiary sector providing most jobs and output. The secondary sector often shrinks in share over time, because factories need fewer workers as capital replaces labour, and because some goods are imported from lower-cost producers.

Worked example: reading sector data

Country A is a fictional developing economy. Total employment rises from 20 million to 28 million over 30 years.

Share of employment	Year 1	Year 2	Change (percentage points)
Primary	60%	35%	-25
Secondary	15%	25%	+10
Tertiary	25%	40%	+15

Number employed in the primary sector:

Year 1: 60% of 20 million = 12.0 million
Year 2: 35% of 28 million =  9.8 million
Change: (9.8 - 12.0) / 12.0 x 100 = -18.3%

The primary share fell by 25 percentage points, but the number of primary jobs fell by only 18.3%, because total employment grew. Percentage points describe a change in a share; per cent describes a change in a number. In the same way, secondary jobs rise from 3.0 million to 7.0 million (+133.3%) and tertiary jobs from 5.0 million to 11.2 million (+124.0%).

Now add Year 2 output shares: primary 22%, secondary 28%, tertiary 50%. Dividing the output share by the employment share gives a rough comparison of output per worker:

Primary:   22 / 35 = 0.63
Secondary: 28 / 25 = 1.12
Tertiary:  50 / 40 = 1.25

Primary workers produce less per head than the economy’s average (a figure of 1.00). Moving workers from farms to higher-productivity work raises output per worker for the whole economy. This ratio is a tool for this example, not something the specification requires.

1.2.2 a: Productivity

Productivity is output per unit of input in a given time, such as output per worker or per hour. Production is the total amount made. They can move in different directions.

Worked example: output up, productivity unchanged

A bakery has 6 workers producing 1,260 loaves a week.

Productivity = 1,260 / 6 = 210 loaves per worker
Per hour (6 workers x 40 hours = 240 hours): 1,260 / 240 = 5.25 loaves

It hires a seventh worker and output rises to 1,470 loaves. Production is up by 210 loaves, yet 1,470 / 7 = 210 loaves per worker. Productivity has not risen. Hiring more workers increases production; training them or giving them better tools increases productivity.

1.2.2 b: What raises productivity

Land

• Fertiliser adds nutrients, raising yield per hectare. Evaluate: costs money, and run-off can pollute water.
• Drainage removes surplus water from waterlogged soil so roots can grow and the land can be used.
• Irrigation supplies water in dry periods, so yields rise and more than one crop a year may be possible.
• Reclamation turns unusable land, such as marsh or spoil ground, into usable land.

Worked example: a fictional farm has 40 hectares producing 120 tonnes of rice, so 120 / 40 = 3.0 tonnes per hectare. Irrigation lifts output to 168 tonnes: 168 / 40 = 4.2 tonnes per hectare, a rise of 40%. The farmer then reclaims 10 hectares, which yield 24 tonnes (2.4 tonnes per hectare). Total output becomes 192 tonnes from 50 hectares, an average of 3.84 tonnes per hectare. Output has risen, but average land productivity is lower than 4.2, because the new land is poorer. Reclamation adds quantity of land more than it raises yield.

Labour

• Quality of labour depends on skills, health and experience.
• Human capital is the stock of skills and knowledge workers carry. Education and training raise it, so each worker produces more per hour. Trade-off: training costs money and time, and trained staff may leave for a rival.
• Migration can raise or lower average productivity. Skilled immigrants fill shortages and raise average quality. If the arrivals have lower skills at first, the average can fall even though total output rises.

Worked example: a town has 80 workers each producing USD 40 of output a day, so USD 3,200 in total. 20 migrants arrive, each initially producing USD 30.

Total: 3,200 + 20 x 30 = USD 3,800   Average: 3,800 / 100 = USD 38

Total output is up, but the average has fallen from USD 40 to USD 38. When the migrants gain language skills and reach USD 45 each: total = 3,200 + 900 = USD 4,100, so the average is USD 41. Emigration of skilled workers (a loss to their home country) has the opposite effect there.

Capital

Productivity rises with increased quantity of capital (more machines per worker) and technological advances (faster, more accurate equipment).

Worked example: a small tile workshop has 4 workers cutting 2,000 tiles a day, or 500 each. A computer-controlled cutter lifts output to 6,400 tiles, or 1,600 each: a rise of (1,600 - 500) / 500 x 100 = 220%. Costs to weigh: the cutter’s price, the training needed, and the possible loss of jobs if fewer workers are needed.

1.2.2 c and d: Division of labour

Division of labour is the splitting of production into separate tasks, with each worker or group doing one task. It is a way of organising workers, different from adding machines.

Worked example: a mug workshop

Five workers each work 40 hours a week, 200 hours in total. Each makes whole mugs by hand, taking 2 hours per mug.

Output = 200 / 2 = 100 mugs, or 20 mugs per worker

The workshop splits the job: shaping 0.25 hours, glazing 0.5, handles 0.3 and packing 0.2, so the labour time per mug is 1.25 hours.

Output = 200 / 1.25 = 160 mugs, or 32 mugs per worker (+60%)

If the wage bill is USD 600 a week, labour cost per mug falls from 600 / 100 = USD 6.00 to 600 / 160 = USD 3.75 (-37.5%).

Advantages and disadvantages

	Advantages	Disadvantages
Workers	Quicker to learn one task; skill builds fast; possible higher pay if the firm earns more	Repetitive and boring; narrow skills make it harder to change job; low motivation
Businesses	Higher output per worker; lower unit costs; consistent quality; training is quicker	Low morale raises absence and staff turnover; the line stops if one worker is absent; less flexible; one error is passed on

Evaluating division of labour

A chain of reasoning: tasks split, so each worker practises one task and wastes less time switching, so output per worker rises, so unit labour cost falls, so profit may rise. The gain depends on whether the product is standardised (suits splitting) or made to order (does not), whether the market is large enough to sell the extra output, and whether boredom raises costs through staff turnover. Job rotation can reduce the disadvantages.

Common errors

• Calling money “capital”. In this unit, capital is man-made productive equipment.
• Confusing production with productivity. Higher production from more workers is not higher productivity.
• Classifying by the product’s end use, not by the activity. A farm is primary even if it grows food for a restaurant.
• Mixing up percentage points and per cent when reading sector data.
• Listing only the advantages of division of labour. Give both sides and a judgement.
• Writing that sectors always change in one fixed order, with no mention of exceptions.

Official syllabus

Pearson Edexcel International GCSE in Economics (4EC1) specification, Issue 3, February 2026, sections 1.2.1 and 1.2.2, published by Pearson Education Limited.