Enterprise, business growth and size: why businesses grow and problems of growth

What you'll learn

This revision guide covers why businesses choose to grow, the different ways they can expand, and the problems they encounter during growth. You'll understand the motivations driving business expansion and be able to analyse the challenges that come with increased size—essential knowledge for CIE IGCSE Business Studies Paper 1 and Paper 2.

Key terms and definitions

Internal growth (organic growth) — expansion of a business using its own resources, through increasing production capacity, launching new products, or opening new branches

External growth (inorganic growth) — expansion achieved through mergers with or takeovers of other businesses

Merger — when two or more businesses agree to join together to form a new, larger business

Takeover (acquisition) — when one business buys control of another business by purchasing over 50% of its shares

Horizontal integration — merging with or taking over a business in the same industry and at the same stage of production

Vertical integration — merging with or taking over a business in the same industry but at a different stage of production (either backward or forward)

Diseconomies of scale — the disadvantages that cause average costs per unit to increase as a business becomes too large

Divorce of ownership and control — the separation between shareholders (owners) who have limited control over daily operations and managers who run the business but don't own it

Core concepts

Why businesses grow

Businesses pursue growth for several strategic and financial reasons:

Higher profits

• Larger businesses can sell more products and generate greater total revenue
• Economies of scale reduce average costs, increasing profit margins
• Example: Tesco expanded across the UK to increase sales volume and profitability

Economies of scale

• Growth allows businesses to spread fixed costs over more units
• Bulk-buying discounts reduce purchasing costs
• Larger firms negotiate better deals with suppliers
• Lower average costs make the business more competitive

Increased market share

• Growth captures a larger percentage of total market sales
• Greater market power allows businesses to influence prices
• Reduces competitive pressure from rivals
• Example: When Facebook acquired Instagram, it increased its dominance in social media

Reduced risk through diversification

• Expanding into new products or markets spreads risk
• If one product fails, others can sustain the business
• Example: Virgin Group operates in airlines, media, telecommunications and financial services

Increased market power

• Larger businesses have stronger negotiating power with suppliers
• Can resist pressure from competitors
• May influence government policy in their industry

Personal objectives of owners and managers

• Owners may want to build a business empire or leave a legacy
• Managers' salaries and status often increase with company size
• Prestige and recognition associated with leading large organisations

Methods of growth

Internal (organic) growth

Internal growth occurs when a business expands using its own resources and capabilities.

Methods include:

• Opening new branches or outlets in different locations
• Increasing production capacity by purchasing new machinery or factories
• Developing and launching new products
• Hiring more employees to increase output
• Entering new markets (geographical expansion)

Advantages:

• Less risky than external growth—builds on existing strengths
• Financed through retained profits, avoiding increased debt
• Business maintains its existing culture and values
• Growth rate is controlled and manageable

Disadvantages:

• Slower than external growth—takes time to establish new capacity
• Requires significant retained profits or external finance
• May miss market opportunities while competitors grow faster
• Limited by existing resources and capabilities

Example: McDonald's opened its first UK restaurant in 1974 and grew organically to over 1,300 UK outlets by expanding one location at a time.

External (inorganic) growth

External growth involves merging with or acquiring other established businesses.

Types of integration:

Horizontal integration

• Joining with competitors at the same production stage
• Eliminates competition and increases market share
• Achieves economies of scale more rapidly
• Example: Sainsbury's attempted takeover of Asda (blocked by regulators)

Vertical backward integration

• Taking over a supplier
• Secures supply sources and reduces supply costs
• Controls quality of raw materials
• Example: A supermarket chain acquiring farms to control food supply

Vertical forward integration

• Taking over a customer or distributor
• Guarantees sales outlets for products
• Captures retailer profit margins
• Example: A clothing manufacturer buying retail stores

Conglomerate integration

• Merging with businesses in completely different industries
• Achieves diversification and spreads risk
• Less strategic synergy than other types
• Example: Berkshire Hathaway owns businesses in insurance, retail, energy and manufacturing

Advantages of external growth:

• Much faster than internal growth
• Instantly acquires market share, customers and assets
• Eliminates competitors (horizontal integration)
• Gains established brands and expertise

Disadvantages:

• Expensive—requires large capital investment
• Integration difficulties—different cultures and systems
• May face regulatory opposition if reduces competition
• Risk of overpaying for the acquired business

Problems arising from growth

While growth offers benefits, it creates significant management and operational challenges.

Diseconomies of scale

As businesses grow beyond optimal size, average costs may begin to rise:

Poor communication

• Information takes longer to pass through many management layers
• Messages become distorted or lost
• Decisions delayed as they move up and down the hierarchy
• Employees feel disconnected from senior management

Low employee motivation

• Workers feel like small parts of a large machine
• Less personal recognition from managers
• Reduced sense of belonging and loyalty
• Lower productivity and increased absenteeism

Slow decision-making

• Complex organisational structures delay responses
• Multiple approval levels required
• Business becomes inflexible and bureaucratic
• Cannot respond quickly to market changes

Coordination difficulties

• Challenging to manage activities across multiple locations
• Different departments may work against each other
• Duplication of effort and resources
• Loss of control over operations

Poor communication

Growth increases the number of employees and management levels, creating communication barriers:

• Important information fails to reach the right people
• Instructions misunderstood or implemented incorrectly
• Employee feedback doesn't reach decision-makers
• Reduces coordination between departments
• Mistakes become more frequent and costly

Divorce of ownership and control

In large companies, particularly public limited companies, ownership and control separate:

Shareholders (owners):

• Own shares but have minimal involvement in daily operations
• Attend annual general meetings but rarely influence decisions
• Concerned primarily with dividends and share price growth

Managers (directors):

• Make operational decisions but own few or no shares
• May prioritise personal objectives over shareholder interests
• Could take excessive risks or pursue growth for status
• Might award themselves generous salaries and bonuses

Consequences:

• Managers may not maximise profits for shareholders
• Short-term focus on share price rather than long-term sustainability
• Potential for conflicts of interest
• Shareholders rely on non-executive directors to monitor management

Financial challenges

Cash flow problems:

• Expansion requires significant capital investment
• Revenue may not increase immediately after investment
• Risk of overtrading—growing too quickly without sufficient working capital

Increased debt:

• External growth usually financed through loans
• Higher interest payments reduce profitability
• Financial risk increases if revenues disappoint

Difficulty maintaining quality:

• Rapid expansion may compromise product or service standards
• New employees require training before reaching full productivity
• Quality control becomes harder across multiple locations
• Brand reputation can suffer from inconsistent customer experiences

Worked examples

Example 1: Why businesses grow (6 marks)

Question: Explain two reasons why a medium-sized clothing retailer might want to grow. [6]

Model answer:

One reason is to achieve economies of scale (1 mark). As the retailer grows and opens more stores, it can order larger quantities of clothing from suppliers (1 mark). This allows the business to negotiate bulk-buying discounts, reducing the average cost per item (1 mark).

Another reason is to increase market share (1 mark). By opening more stores in different locations, the retailer captures a larger percentage of the clothing retail market (1 mark). This increases its market power and makes it less vulnerable to competition from other retailers (1 mark).

Examiner note: Each reason scores 3 marks—1 for identification, 2 for development. Use the formula: identify + explain + apply to context.

Example 2: Problems of growth (8 marks)

Question: Analyse two problems a business might face when it grows rapidly. [8]

Model answer:

One problem is poor communication (1 mark). As the business grows, it needs more management levels to control increasing numbers of employees (1 mark). Messages must pass through many layers, which can cause delays and distortion (1 mark). Important information might not reach employees quickly enough, leading to mistakes and inefficiency, which increases costs (1 mark).

Another problem is diseconomies of scale due to low employee motivation (1 mark). In a rapidly growing business, employees may feel like small parts of a large organisation rather than valued individuals (1 mark). They receive less personal recognition from managers who now oversee many more workers (1 mark). This reduces productivity and commitment, leading to higher costs per unit and potentially lower quality products (1 mark).

Examiner note: "Analyse" requires you to identify the problem, explain how it arises, and show its impact on the business. Each problem scores up to 4 marks.

Example 3: Methods of growth (5 marks)

Question: Outline one advantage and one disadvantage of internal growth for a supermarket chain. [5]

Model answer:

One advantage is that internal growth is less risky than external growth (1 mark). The supermarket expands at a controlled pace by opening new stores gradually (1 mark), which allows it to maintain quality standards and company culture across all locations (1 mark).

One disadvantage is that internal growth is much slower (1 mark). Opening stores one at a time means competitors might expand faster and capture market share before the supermarket can establish presence in new areas (1 mark).

Examiner note: "Outline" requires less detail than "explain." One mark for identification plus 1-2 marks for brief development.

Common mistakes and how to avoid them

• Confusing mergers and takeovers: A merger is agreed between businesses; a takeover means one business purchases control of another (sometimes against its wishes). Always use the correct term based on the scenario.

• Describing growth methods without explaining WHY businesses grow: Questions often ask "why" businesses grow, requiring you to discuss objectives like higher profits or economies of scale—not just methods like mergers or opening branches.

• Listing problems without showing their impact: When analysing problems of growth, always explain the consequence for the business (e.g., "poor communication leads to mistakes, which increases costs and reduces customer satisfaction").

• Ignoring the context: Apply your answer to the specific business in the question. A manufacturing business faces different growth challenges than a service business—tailor your response accordingly.

• Mixing up economies and diseconomies of scale: Economies of scale are advantages (cost reductions) as firms grow; diseconomies of scale are disadvantages (cost increases) when firms become too large. Don't use these terms interchangeably.

• Forgetting vertical integration has two types: Distinguish between backward integration (buying suppliers) and forward integration (buying customers/distributors). They serve different strategic purposes.

Exam technique for "Enterprise, business growth and size: why businesses grow and problems of growth"

• Command word awareness: "Explain" questions (6 marks) require two developed reasons with clear cause-and-effect. "Analyse" questions (8 marks) need deeper examination of how problems arise and their impact. "Evaluate/Justify" questions (12 marks) require balanced arguments with a supported conclusion.

• Use business terminology precisely: Demonstrate knowledge by using correct terms like horizontal integration, diseconomies of scale, organic growth. This signals examiner competence and earns marks in levels-based marking.

• Apply knowledge to the case study: In Paper 2, always reference the business scenario provided. Generic answers score lower than those showing how growth affects the specific business context.

• Structure "discuss/justify" answers with paragraphs: Opening with the argument, middle paragraph(s) developing points with evidence, and conclusion stating which option is best and why. This earns higher marks in Level 3/4 responses.

Quick revision summary

Businesses grow to achieve economies of scale, increase profits, gain market share, and reduce risk through diversification. Internal growth uses the business's own resources (slower but less risky), while external growth involves mergers or takeovers (faster but expensive). Growth methods include horizontal integration (joining competitors), vertical integration (joining suppliers or customers), and conglomerate integration (unrelated industries). Problems include diseconomies of scale (poor communication, low motivation, coordination difficulties), divorce of ownership and control, cash flow problems, and quality maintenance difficulties. Understanding both benefits and challenges is essential for evaluation questions.