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IGCSE Business: Production of goods and services (Cambridge 0264)

Study guide to Cambridge IGCSE Business 0264 section 4.1: labour productivity, efficiency, lean production, inventory and job, batch and flow production.

Subject
Business
Level
IGCSE
Topic
Operations management
Updated

Aligned to Cambridge IGCSE Business (0264), For examination in 2027, 2028 and 2029. Official specification .

Syllabus page (what it covers and how it is assessed): Cambridge IGCSE Business.

Syllabus points this page covers

0264

  • 4.1 Production of goods and services

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This guide covers section 4.1, Production of goods and services, of the Cambridge IGCSE Business 0264 syllabus for examination in 2027, 2028 and 2029. It teaches production processes (4.1.1) and the main methods of production (4.1.2). Every business below is invented. Revise from the revision notes, then test yourself with the practice questions. The course hub and the printable checklist track your progress, and the free diagnostics show where to start.

What this section covers

Syllabus point What you must be able to do
4.1.1 Calculate labour productivity
4.1.1 Explain why efficiency is important to a business
4.1.1 Explain how to increase efficiency, for example more automation and technology, or better labour skills
4.1.1 Explain lean production and how to achieve it through just-in-time (JIT) inventory control and Kaizen
4.1.1 Give advantages and disadvantages of lean production methods
4.1.1 Explain why businesses hold inventory and what affects how much they hold
4.1.2 Describe job, batch and flow production
4.1.2 Give advantages and disadvantages of each method
4.1.2 Recommend and justify a production method for a given situation

The syllabus says this topic covers goods and services, so keep both in mind. A hairdresser, a bank and a bus company all have production processes too.

Labour productivity

Labour productivity measures how much output each worker produces in a given period. The syllabus asks you to calculate it and lists the formula in its formulas and ratios section, as output per period (units) divided by number of employees, giving units per employee:

Labour productivity = output in a period / number of employees in that period

Worked example 1. Wraxcombe Cycles makes bicycle frames. In March 35 workers made 4,200 frames. In April 36 workers made 4,680 frames.

  1. March: 4,200 / 35 = 120 frames per worker.
  2. April: 4,680 / 36 = 130 frames per worker.
  3. Change: 130 - 120 = 10 more frames per worker, which is 10 / 120 = 8.3% (1 decimal place).

Output rose by 11.4%, but productivity rose by only 8.3%, because the workforce also grew. That is why productivity is a better measure of performance than output alone. Always state the unit (frames per worker) and the time period.

Productivity can be measured per hour instead of per employee. The method is the same: divide output by the labour input you are given.

March: 35 workers made 4,200 frames (120 each). April: 36 workers made 4,680 (130 each). Output rose 11.4% but productivity only 8.3%.
Productivity rises less than output when the workforce also grows.

Why efficiency is important

Efficiency means using resources, such as labour, materials and energy, so that little is wasted and each unit of output costs less. In answers, link it to the business’s results:

  • Lower unit costs. The same money produces more, so the business can make more profit at its current price or cut the price to compete.
  • Better competitiveness. A business that produces at lower cost can price below rivals or spend more on quality and marketing.
  • Less waste. Fewer materials and less energy are thrown away, which also helps the business’s environmental image.
  • Faster delivery. Smoother processes mean customers get products sooner, which supports customer satisfaction.

A strong explanation has a chain: efficiency rises, so unit costs fall, so the business can lower its price or raise its profit. Do not stop at “it saves money”.

Three bars show the cost and profit in one unit. Before efficiency the price is 100: cost 70 and profit 30. After efficiency cost falls to 55. Keeping the price gives profit 45; cutting the price to 85 keeps profit at 30 and makes the business cheaper than rivals. Numbers are illustrative.
Efficiency lowers cost per unit, so the business can keep the price and earn more or cut the price and compete (illustrative numbers).

How to increase efficiency

The syllabus names two routes by example: automation and technology, and improving labour skills.

Automation and technology. Machines and computer-controlled equipment do repetitive tasks faster, more consistently and for longer hours than people. The gain is higher output per worker and fewer errors. The costs are the purchase price, maintenance, possible redundancies and the risk of breakdowns halting production.

Improving labour skills. Training lets workers do tasks faster, make fewer mistakes and use equipment properly. A better-trained worker may also be more motivated. The costs are the fees, the lost production while people train, and the risk that trained staff leave for a better-paid job.

Worked example 2. Tarnbury Bakehouse has 20 packers. A training course costs £6,000 in total. Afterwards each packer handles 4 more trays per week. Each extra tray adds £9 to revenue after costs.

  1. Extra trays per week: 20 x 4 = 80.
  2. Extra weekly benefit: 80 x £9 = £720.
  3. Time to recover the training cost: £6,000 / £720 = 8.3 weeks (1 decimal place).

The course pays for itself in about eight to nine weeks, if the gains last. A good evaluation points out that last condition: the benefit depends on workers staying and keeping the new habits.

A line graph shows extra benefit building by 720 pounds a week after a 6,000 pound training course for 20 packers. The line reaches the 6,000 pound course cost at 8.3 weeks, the payback time, if the gains last.
Tarnbury earns £720 extra a week, so the £6,000 course is repaid in about 8.3 weeks.

Lean production

Lean production means producing goods or services with as little waste as possible, while keeping quality high. Waste includes unused inventory, idle workers, waiting time, faulty products and unnecessary movement. The syllabus names two ways to achieve it.

Just-in-time (JIT) inventory control

With JIT, a business keeps very little inventory. Materials arrive from suppliers just as they are needed, and finished products go to customers soon after they are made.

Advantages Disadvantages
Less money tied up in inventory Production stops if a delivery is late
Less storage space needed Suppliers must be reliable, so the business depends on them
Less risk of stock going out of date or being damaged Orders may be smaller and dearer, with fewer bulk discounts
Cash can be used elsewhere Hard to meet a sudden rise in demand from stock
Two stock graphs over 12 days with usage of 10 units a day. JIT holds 0-20 units and needs 6 deliveries; JIC holds a 40-unit buffer, stock 40-100, and needs 2 deliveries. JIC has higher storage cost but covers demand spikes.
JIT cuts storage cost but needs frequent reliable deliveries; JIC holds buffer stock at a storage cost.

Kaizen

Kaizen means continuous improvement. Every worker, not just managers, is expected to suggest small changes all the time, often through teams that meet to solve problems. Many small improvements add up to lower costs and higher quality.

Advantages Disadvantages
Staff feel involved, which can raise motivation Gains are small and slow, not dramatic
Ideas come from people who do the work Meetings and training take time and money
Costs and waste fall steadily Some workers resist change or feel under pressure
Quality improves Needs commitment from all levels to keep going

Advantages of lean production overall: lower costs, less waste, higher quality and more flexible production. Disadvantages overall: heavy reliance on suppliers, risk of lost sales if stock runs out, and the effort of changing how people work.

Five bars, one for each waste type that lean production targets: unused inventory, idle workers, waiting time, faulty products and unnecessary movement. Each bar shows part of the waste removed through small, continuous improvements by all workers. Lengths are illustrative.
Lean production targets five kinds of waste; Kaizen removes them through many small improvements.

Why businesses hold inventory

Inventory (also called stock) means raw materials, work in progress and finished goods. Businesses hold it to:

  • keep production running if a supplier is late;
  • meet sudden rises in demand without disappointing customers;
  • buy materials in bulk at a discount;
  • deal with seasonal demand, such as building up stock before a busy period.

Factors affecting how much inventory a business holds

  • Type of product. Fresh or perishable items such as bread must be held in small amounts. Durable items such as screws can be stored for years.
  • Demand. Steady, predictable demand needs less spare inventory. Uncertain or seasonal demand needs more.
  • Supplier reliability and delivery time. Slow or unreliable suppliers mean a larger buffer.
  • Storage space and cost. Little space or high storage costs push a business to hold less.
  • Cash available. Inventory ties up money, so a business short of cash holds less.
  • Production method. A business using JIT holds very little inventory. One using batch production may hold more.

Worked example 3. Tarnbury Bakehouse bakes cream cakes with a two-day shelf life, and its supplier of cream delivers within hours. Applying the factors: the product is perishable, delivery is quick and reliable, and demand is easy to forecast from daily sales. The bakehouse should hold small amounts of inventory and order often. If its supplier became unreliable, it might hold slightly more cream but must still avoid waste.

Three scales run from little stock to lots of stock. Perishable cream cakes, delivery within hours and easy-to-forecast demand all put Tarnbury at the little-stock end, so it holds small amounts and orders often. An unreliable supplier would move the delivery marker slightly towards more stock.
Perishable cakes, quick delivery and predictable demand all point to small stock and frequent orders.

The main methods of production

Job production

One product is made at a time, to a customer’s own specification. Examples: a bespoke wedding dress, a custom yacht, a one-off bridge.

  • Advantages: the customer gets exactly what they want, quality is often high, a premium price can be charged, and workers may enjoy varied, skilled work.
  • Disadvantages: high cost per unit, slow, needs skilled and so expensive labour, and little benefit from machines or bulk buying.

Batch production

A group (batch) of identical products is made together, then the equipment is changed to make the next batch. Examples: a bakery making a set of loaves of one type, a clothing maker producing 200 shirts in one size and colour.

  • Advantages: more variety than flow production, can switch products as demand changes, lower unit costs than job production, and some specialisation is possible.
  • Disadvantages: equipment is idle during changeovers, batches can lead to storing finished goods, and each switch needs time and set-up cost.

Flow production

Products are made continuously on a production line, and each stage is done in sequence. The products are identical and made in very large quantities. Examples: bottling drinks, assembling cars, making tins of beans.

  • Advantages: very low unit cost, high output, heavy use of machinery, and consistent quality.
  • Disadvantages: high set-up cost for machines and the line, little flexibility, boring work for employees, and the whole line stops if one stage breaks down.
Job Batch Flow
Quantity One A group at a time Very large, continuous
Variety Unique Some Little or none
Unit cost Highest Medium Lowest
Flexibility Very high Medium Low
Capital needed Low Medium High

Services. Methods apply to services as well: a tailor works to individual order (job), a cleaning firm treats offices in a scheduled round (batch-like), and an automated car wash processes cars in sequence (flow-like).

Job production makes one item to order at the highest cost per unit. Batch production makes groups with changeovers between them at medium cost. Flow production makes identical items continuously at the lowest cost per unit.
Job, batch and flow production compared by quantity and cost per unit.
Job production: one person making one unique item to order (wedding cake, bespoke suit). Flow production: six identical bottles moving non-stop on a conveyor (bottling plant). A scale links job to flexibility and flow to low unit cost.
Job production makes single made-to-order items; flow production makes large volumes of identical items non-stop.

Recommend and justify a production method

When a question gives you a business and asks for a recommendation, use this approach:

  1. Pick the method you recommend, stated clearly.
  2. Use the data: quantity demanded, how standard or customised the product is, price, capital available, the skills of the workforce.
  3. Justify with at least two reasons that link to the case.
  4. Weigh the other options: say why a rejected method suits the case less well.
  5. Conclude with one line that returns to the business’s situation.

Worked example 4. Penmorrow Furniture makes six dining tables a month, each to a customer’s measurements, and sells each for about £4,000. A manager suggests moving to flow production to cut costs.

Recommendation: stay with job production. Each table differs, so a fixed production line could not produce them. With only six a month the cost of setting up a line could not be spread over enough output. Customers pay a premium for a bespoke piece, and flow production would remove that selling point. Batch production would suit only if Penmorrow introduced a standard range with steady demand. On the data given, job production is the better fit.

Notice that the answer uses three facts from the case (six a month, customer measurements, £4,000 price). An answer without them is generic and scores poorly on application.

Three case facts are linked to three reasons against flow production: six tables a month cannot spread set-up cost, each table is made to measure so a fixed line cannot produce it, and flow would remove the bespoke selling point of tables sold for about 4,000 pounds. The recommendation is to stay with job production.
Use case facts (quantity, product, price) to justify the recommended method and reject the others.

Common errors

  • Writing “productivity” when you mean output. Productivity is output per worker (or per hour).
  • Dividing by the wrong period or the wrong number of workers.
  • Saying JIT means “no inventory”. It means very little, with deliveries timed to need.
  • Describing Kaizen as a single large change. It is continuous, small and involves everyone.
  • Recommending a method with no reference to the case. Name the quantity, the product and the budget.
  • Listing advantages only. Questions that ask you to justify need a reason why the rejected options are weaker.

Frequently asked questions

Is labour productivity the same as output? No. Output is the total amount produced, while labour productivity is output per worker or per hour. Output can rise while productivity rises more slowly, or even falls, if the workforce grows.

Does just-in-time mean a business holds no inventory? No. Just-in-time means holding very little inventory, with materials delivered just as they are needed and finished products sent to customers soon after they are made.

What is the difference between batch and flow production? Batch production makes a group of identical products, then changes the equipment for the next batch, so it offers some variety. Flow production makes identical products continuously on a line in very large quantities, giving the lowest unit cost but little flexibility.

Do production methods apply to services as well as goods? Yes. The Cambridge IGCSE Business 0264 syllabus covers goods and services, so a tailor working to individual order resembles job production, and an automated car wash processing cars in sequence resembles flow production.

Why is flow production unsuitable for a small number of customised products? A fixed production line cannot make products that each differ, and its high set-up cost cannot be spread over a small output. Customers paying a premium for a bespoke product would also lose what they are paying for.

Next steps

Condense this into the revision notes, then try the twelve questions in the practice set.

Official syllabus

Cambridge IGCSE Business 0264 syllabus for examination in 2027, 2028 and 2029, published by Cambridge International Education, section 4.1.

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