IGCSE Business Studies (0450) – Concise Revision Notes
How to Use These Notes
- Read each unit’s key points, then test yourself with the “Check‑Your‑Understanding” questions at the end of the section.
- Use the tables and diagrams for quick recall during exam revision.
- Colour‑code the 4 Ps (Product – blue, Price – green, Place – orange, Promotion – red) to visualise their inter‑relationships.
Unit 1 – Understanding Business Activity
1.1 What Business Does
- Needs vs. Wants: Needs are essential for survival; wants are the ways we satisfy those needs.
- Scarcity & Opportunity Cost: Limited resources mean choosing one option foregoes another.
- Sectors of the Economy: Primary (extraction), Secondary (manufacturing), Tertiary (services).
1.2 Forms of Organisation
| Form | Key Features | Typical Stakeholder Objectives |
| Sole trader | Owner‑managed, unlimited liability | Profit, independence |
| Partnership | Two or more owners, shared liability | Profit, shared decision‑making |
| Private limited company (Ltd) | Separate legal entity, limited liability | Profit, growth, limited risk |
| Public limited company (PLC) | Shares traded on a stock exchange | Profit, shareholder returns, reputation |
| Co‑operative | Member‑owned, democratic control | Member benefits, community focus |
| Public sector / Social enterprise | Owned by government or community, non‑profit motive | Service provision, social impact, sustainability |
1.3 Measuring Business Size & Growth
| Measure | How It Is Measured | Limitations |
| Number of employees | Head‑count (full‑time equivalents) | Ignores productivity differences |
| Turnover (sales revenue) | £ per year | Doesn’t show profit margin |
| Capital employed | Value of plant, equipment, inventory | Hard to compare across industries |
- Internal growth: reinvested profits, new product development, increased marketing.
- External growth: mergers, acquisitions, franchising, joint ventures.
- Problems of growth: loss of control, cash‑flow pressure, coordination difficulties.
1.4 Causes of Business Failure
- Insufficient cash flow / liquidity problems.
- Poor management decisions (e.g., over‑expansion, weak pricing).
- Inadequate market research – product does not meet customer needs.
- External shocks – economic recession, legal changes, new competition.
- Operational inefficiencies – high waste, low productivity.
1.5 Business Objectives & Stakeholders
- Profit‑oriented: maximise profit, increase market share.
- Growth‑oriented: expand output, enter new markets.
- Survival‑oriented: stay in business during recession.
- Other objectives: improve quality, enhance reputation, fulfil social mission.
| Stakeholder | Key Objective(s) |
| Owners / shareholders | Profit, return on investment |
| Employees | Job security, wages, career development |
| Customers | Value for money, quality, service |
| Suppliers | Steady orders, timely payment |
| Community | Employment, environmental care, charitable support |
| Government | Tax revenue, compliance with regulations |
| Non‑profit / social enterprises | Social impact, community benefit |
Check‑Your‑Understanding
- Explain why a business might choose “survival” as its primary objective during an economic downturn.
- Match each stakeholder with the objective most important to them.
- Identify two common reasons why a small retailer could fail within its first three years.
Unit 2 – People in Business
2.1 Motivation Theories (Exam‑friendly)
| Theory | Core Idea | Exam Example |
| Maslow’s Hierarchy | Needs satisfied in five‑stage order | Pay rise → safe conditions → team‑building → recognition → career development |
| Taylor’s Scientific Management | Break jobs into simple tasks; pay per output | Piece‑rate wages on an assembly line |
| Herzberg’s Two‑Factor | Hygiene factors prevent dissatisfaction; motivators create satisfaction | Good lighting (hygiene) + challenging work (motivator) |
2.2 Organisational Structure & Leadership
- Simple structure: owner‑manager, few employees – fast decision‑making.
- Functional structure: departments (marketing, finance, production) – specialist expertise.
- Divisional structure: separate profit centres (by product line or geography) – clear accountability.
- Matrix structure: dual reporting – functional & product lines; good for complex projects but can cause conflict.
Leadership styles (quick exam recall): Autocratic, Democratic, Laissez‑faire – each influences staff motivation and decision‑making speed.
2.3 Legal & Industrial‑Relations Controls
- Key statutes (UK examples): Equality Act 2010, Health & Safety at Work Act, Working Time Regulations, Minimum Wage Act.
- Employment contracts: written terms, notice periods, disciplinary & grievance procedures.
- Unfair dismissal & redundancy: legal grounds, compensation calculations.
- Trade unions: represent employee interests, negotiate collective agreements, can organise strikes.
2.4 Recruitment, Selection & Training
- Recruitment methods: internal (promotion, transfer) vs. external (advertisements, agencies, online portals).
- Selection tools: application forms, CVs, structured interviews, psychometric tests, assessment centres.
- Training types: on‑the‑job, off‑the‑job, apprenticeship, e‑learning, induction programmes.
2.5 Communication in Business
- Formal channels (reports, memos) vs. informal channels (water‑cooler chat).
- Barriers: language, cultural, physical, psychological.
- Effective communication steps – sender, message, medium, receiver, feedback.
Check‑Your‑Understanding
- Identify two motivational techniques a retailer could use to improve staff morale.
- Explain one advantage and one disadvantage of a matrix structure.
- List three legal controls that protect a young employee in the UK.
Unit 3 – Marketing (The Marketing Mix)
3.1 What Is a Marketing Strategy?
A long‑term plan that defines how a business will reach its target market, satisfy customer needs and achieve its marketing objectives. It integrates decisions about the 4 Ps to create a coherent, competitive approach.
3.2 The 4 Ps – Elements, Key Considerations & Why They Matter
| Element |
Key Considerations (exam‑friendly) |
Why It Is Important |
| Product |
- Features, quality, design, brand, packaging
- Core, actual & augmented product
- Product life‑cycle (PLC) – introduction, growth, maturity, decline
- Extension strategies – new features, market‑segment targeting, re‑branding
|
- Creates value and meets customer needs
- Differentiates the business from competitors
- Influences perceived price and the type of promotion required
|
| Price |
- Pricing objectives – profit, market share, survival, status
- Methods – cost‑plus, competition‑based, penetration, skimming, value‑based
- Discounts, credit terms, psychological pricing (e.g., £9.99)
- Price elasticity of demand – % change in quantity / % change in price
|
- Direct impact on revenue and profitability
- Signals quality and market positioning
- Can be used as a competitive weapon (e.g., penetration pricing)
|
| Place (Distribution) |
- Channels – direct, retail, wholesale, online, franchising
- Coverage – intensive, selective, exclusive
- Logistics – inventory, warehousing, transport costs
- Location factors – proximity to market, accessibility, image
|
- Ensures product availability where and when customers want it
- Reduces costs and improves service levels
- Supports brand image through choice of outlets
|
| Promotion |
- Advertising, sales promotion, public relations, personal selling, direct marketing
- Message, media selection, timing, budget
- Integrated Marketing Communications (IMC) – consistent brand voice
- Digital marketing – website, social media, SEO, influencer partnerships, data‑privacy (GDPR)
|
- Creates awareness and stimulates demand
- Builds brand equity and customer loyalty
- Communicates the value proposition of the product
|
3.3 Interaction of the 4 Ps
- Product ↔ Price: Premium features justify a higher price; low‑cost production is needed for budget products.
- Price ↔ Promotion: High‑price items often use prestige advertising; low‑price items rely on price‑focused promotions.
- Place ↔ Promotion: Online sales require digital advertising; exclusive boutiques need high‑end print media.
- Promotion ↔ Product: Advertising can change perceived quality, allowing a basic product to be repositioned as premium.
3.4 Product Life‑Cycle (PLC)

- Introduction: Low sales, high costs – use penetration pricing or heavy promotion.
- Growth: Rapid sales increase – focus on distribution expansion and product improvements.
- Maturity: Sales peak, competition intense – use product differentiation, price adjustments, promotional offers.
- Decline: Falling sales – consider product deletion, harvesting (reduce costs), or finding new uses.
3.5 Market Research & Segmentation
- Primary research: surveys, interviews, observations, experiments – fresh data, higher cost.
- Secondary research: published reports, statistics, internet – cheaper, may be outdated.
- Sampling methods: random, stratified, convenience – affect reliability and validity.
- Segmentation criteria:
- Demographic – age, gender, income
- Geographic – region, climate, urban/rural
- Psychographic – lifestyle, values, personality
- Behavioural – benefits sought, usage rate, loyalty
3.6 Legal & Ethical Controls on Marketing
| Control | Key Requirement | Typical Exam Example |
| Consumer Protection Act | Products must be safe and meet advertised standards | Recall of a faulty toy |
| Advertising Standards Authority (ASA) | No misleading, harmful or offensive ads | “100 % natural” claim when synthetic ingredients are used |
| Data Protection (GDPR) | Personal data must be obtained lawfully and stored securely | Opt‑in requirement for email marketing |
| Fair Trading Act (UK) | Prohibits unfair commercial practices | Misleading price comparison |
3.7 Marketing in Foreign Markets
- Entry‑mode decision tree: Export → licensing → franchising → joint venture → wholly‑owned subsidiary.
- Key factors before entry: cultural differences, legal environment, economic stability, political risk, market size.
- Adaptation vs. standardisation – decide how much of the 4 Ps need to be altered for the target country.
Check‑Your‑Understanding
- Explain how a change in a product’s packaging could affect the other three Ps.
- Using a real‑world example, illustrate the difference between intensive and selective distribution.
- Identify two legal controls that could restrict a promotional campaign for a new energy drink.
- Describe one extension strategy that could be used when a product reaches the decline stage of its PLC.
Unit 4 – Operations Management
4.1 Production Methods
| Method | Characteristics | Typical Example |
| Job production | One‑off, high flexibility, high cost per unit | Custom wedding dress |
| Batch production | Limited runs, set‑up time between batches | Bakery producing different loaf types each morning |
| Flow (mass) production | High volume, low cost per unit, specialised equipment | Car manufacturing line |
4.2 Productivity & Costs
- Productivity formula: Productivity = Output ÷ Input (e.g., units per labour hour).
- Ways to improve productivity: training, better equipment, process redesign, lean techniques.
- Costs: Fixed (rent, salaries) vs. Variable (raw materials, hourly wages).
- Economies of scale: Average cost falls as output rises; diseconomies of scale: Cost rises after a certain size due to management complexity.
4.3 Break‑Even Analysis
Break‑Even Point (BEP) formula:
BEP (units) = Fixed Costs ÷ (Price per unit – Variable Cost per unit)
Key terms:
- Contribution margin: Price – variable cost.
- Margin of safety: (Actual or projected sales – BEP) ÷ actual sales × 100 %.
- Profit target: Add desired profit to fixed costs before dividing by contribution margin.
When drawing a BEP chart, plot total revenue and total cost lines; the intersection is the break‑even point.
4.4 Quality Management
- Quality Assurance (QA): Processes to prevent defects (e.g., ISO 9001 certification).
- Quality Control (QC): Inspection and testing of output; sampling methods.
- Lean production: Eliminate waste (over‑production, waiting, transport, excess inventory, motion, defects, over‑processing, unused talent).
- Just‑In‑Time (JIT): Inventory arrives only when needed – reduces holding costs but requires reliable suppliers.
4.5 Location Decisions
| Factor | Why It Matters |
| Proximity to market | Reduces transport costs, improves service speed |
| Proximity to raw materials | Lowers input costs for manufacturers |
| Labour availability & cost | Impacts wage bills and skill levels |
| Infrastructure | Roads, ports, IT connectivity affect efficiency |
| Government incentives | Tax breaks, grants can tip the balance |
| Environmental & community impact | Reputation, compliance with planning regulations |
Check‑Your‑Understanding
- Calculate the break‑even point for a product that sells for £25, has a variable cost of £15 and fixed costs of £40 000.
- Discuss two advantages of flow production for a smartphone manufacturer.
- Explain how a “lean” approach can improve both quality and cost‑effectiveness.
- Identify one potential disadvantage of a Just‑In‑Time system.
Unit 5 – Financial Information and Decisions
5.1 Sources of Finance
| Source | Type | Key Features |
| Bank overdraft | Short‑term | Flexible, interest on amount used, usually secured against assets. |
| Trade credit | Short‑term | Suppliers allow delayed payment (e.g., 30 days), no interest if paid on time. |
| Bank loan | Medium‑term | Fixed interest, regular repayments, may require collateral. |
| Hire purchase (HP) / Leasing | Medium‑term | Asset paid for in instalments; ownership at end of HP. |
| Equity finance – share issue | Long‑term | Shares sold to investors, no repayment obligation, dividends optional. |
| Venture capital / Angel investors | Long‑term | High‑risk funding for fast‑growing businesses, often with expertise input. |
| Government grants & subsidies | Non‑repayable | Targeted at specific projects (R&D, green technology). |
5.2 Financial Statements – What They Show
- Income Statement (Profit & Loss Account): Summarises revenue, cost of sales, gross profit, operating expenses, and net profit for a period.
- Balance Sheet: Snapshot of assets, liabilities and owners’ equity at a point in time. Assets = Liabilities + Equity.
- Cash Flow Statement: Shows cash inflows and outflows from operating, investing and financing activities.
5.3 Ratio Analysis (AO2 – Interpretation)
| Ratio | Formula | What It Indicates |
| Gross Profit Margin | Gross Profit ÷ Sales × 100 % | Efficiency of production & pricing. |
| Net Profit Margin | Net Profit ÷ Sales × 100 % | Overall profitability after all costs. |
| Current Ratio | Current Assets ÷ Current Liabilities | Short‑term liquidity. |
| Quick (Acid‑Test) Ratio | (Current Assets – Stock) ÷ Current Liabilities | Liquidity without relying on inventory. |
| Return on Capital Employed (ROCE) | Profit before interest & tax ÷ Capital Employed × 100 % | How efficiently capital is used. |
| Debt‑to‑Equity Ratio | Total Liabilities ÷ Equity | Financial risk – proportion of borrowing. |
5.4 Budgeting & Forecasting
- Master (overall) budget: Combines sales, production, cash, and profit budgets.
- Flexible budgeting: Adjusts for actual sales volume, useful for variance analysis.
- Variance analysis: Variance = Actual – Budgeted; favourable (F) if profit higher, unfavourable (U) if lower.
5.5 Investment Appraisal (AO3 – Evaluation)
- Payback period: Time taken to recover the initial outlay. Simple, ignores time value of money.
- Net Present Value (NPV): Σ (Cash inflow ÷ (1 + r)^n) – Initial outlay; r = discount rate. Positive NPV = viable.
- Internal Rate of Return (IRR): Discount rate that makes NPV = 0; compare with required rate of return.
- Accounting Rate of Return (ARR): Average annual profit ÷ initial investment × 100 %.
5.6 Sources of Financial Information for Decision‑Making
- Annual reports, company accounts, industry statistics, market forecasts, internal management accounts.
- Use of financial ratios, trend analysis, and break‑even analysis to inform pricing, product range, and expansion decisions.
Check‑Your‑Understanding
- Using the ratio table, calculate the current ratio for a company with current assets £120 000 and current liabilities £80 000.
- Explain why a business might prefer a leasing arrangement to a bank loan when acquiring new machinery.
- Outline the steps involved in calculating the NPV of a three‑year project with a discount rate of 8 %.
- Identify two limitations of ratio analysis when assessing a company’s performance.