Study Notes
Overview
Expanding a business is a core topic in GCSE Business Studies. It explores the motivations behind business growth, the specific methods businesses use to expand, and the financial consequences of that growth. Examiners expect candidates to distinguish clearly between organic (internal) growth and external growth. Furthermore, a deep understanding of economies of scale—and the contrasting diseconomies of scale—is essential. You must be able to explain how growth affects the four functional areas: operations, human resources, marketing, and finance, and calculate average unit costs accurately.
Methods of Growth
Organic (Internal) Growth
What it is: Growth from within the business using its own resources.
Methods:
- Franchising: The franchisor allows a franchisee to trade under its name and use its business model in exchange for a fee and royalties (e.g., McDonald's).
- New Stores / Branches: Opening additional outlets to reach more customers and increase market share.
- E-Commerce: Selling online to access a global market 24/7 without the overheads of physical stores.
- Outsourcing: Paying external companies to handle specific tasks (like IT or manufacturing) to reduce costs and focus on core activities.
Why it matters: Organic growth is generally slower but less risky than external growth. It allows the business to maintain its culture and control.
External Growth
What it is: Growth by joining with or buying another business.
Methods:
- Mergers: Two businesses voluntarily agree to join together to form a single new business.
- Takeovers (Acquisitions): One business buys a controlling interest (more than 50% of shares) in another business. This can be hostile.
Why it matters: External growth is rapid and can instantly eliminate a competitor or secure a supply chain, but it carries high risks of culture clashes and integration issues.
Economies and Diseconomies of Scale
Economies of Scale
What it is: The reduction in average unit cost as a business increases its scale of production.
Key Types:
- Purchasing (Bulk Buying): Negotiating discounts with suppliers by buying in large quantities.
- Technical: Investing in large-scale, efficient machinery that smaller firms cannot afford.
- Financial: Securing bank loans at lower interest rates because large firms are seen as lower risk.
- Managerial: Employing specialist managers (e.g., a dedicated HR Director) who are more efficient than generalists.
Diseconomies of Scale
What it is: The increase in average unit cost that occurs when a business grows too large.
Key Causes:
- Poor Communication: Messages take too long to pass through multiple layers of management, leading to errors.
- Coordination Problems: It becomes difficult to align the activities of thousands of employees across different departments or countries.
- Low Staff Motivation: Workers feel like "just a number" in a massive organisation, leading to lower productivity and higher staff turnover.
Audio Revision
Listen to our 10-minute podcast covering the core concepts, common mistakes, and a quick-fire quiz:
Worked Examples
3 detailed examples with solutions and examiner commentary
Practice Questions
Test your understanding — click to reveal model answers
Evaluate whether a takeover is the best method of growth for a successful regional supermarket chain looking to expand nationally. (12 marks)
Hint: Consider the speed of a takeover versus the risks of integration, and compare it to organic methods like opening new stores.
Explain how poor communication can lead to diseconomies of scale. (3 marks)
Hint: Link the size of the business to the flow of information, and then to unit costs.
State two methods of organic growth. (2 marks)
Hint: Think of growth from within the business.
A business produces 5,000 units at a total cost of £25,000. It expands production to 10,000 units, and total costs rise to £40,000. Calculate the change in average unit cost and state whether the business has experienced economies or diseconomies of scale. (4 marks)
Hint: Calculate the unit cost for both scenarios first.
Explain one reason why a business might choose to grow via e-commerce. (3 marks)
Hint: Think about the costs of physical stores versus online, or the size of the market.