Firms (Copy)
3.5 Firms
3.5.1 Classification of Firms
- By Sector:
- Primary → extractive industries (farming, mining, fishing).
- Secondary → manufacturing (factories, construction).
- Tertiary → services (banks, retail, transport).
- By Ownership:
- Private sector → owned by individuals/firms (shops, factories).
- Public sector → owned by government (schools, hospitals).
- By Size:
- Small, medium, large firms (measured by revenue, employees, assets, market share).
Written and Compiled By Sir Hunain Zia, World Record Holder With 154 Total A Grades, 7 Distinctions and 11 World Records For Educate A Change O Level And IGCSE Economics Full Scale Course
3.5.2 Small Firms
Advantages:
- Flexibility → adapt quickly to changes.
- Close customer relationships.
- Lower admin costs.
- Opportunities for entrepreneurs.
Disadvantages:
- Limited finance → hard to expand.
- Lack of economies of scale → higher costs.
- Less influence in market → weaker bargaining power.
- Vulnerable to failure if demand falls.
Reasons for Existence:
- Serve niche markets.
- Personal service valued by customers.
- Low barriers to entry in some industries.
- Government support for small businesses.
3.5.3 Causes and Forms of Growth of Firms
- Internal Growth (organic): Expansion by reinvesting profits, increasing market share, new products, entering new markets.
- External Growth: Expansion by merger or takeover.
3.5.4 Mergers
- Horizontal Merger: Between firms in same industry and stage of production.
- Example: Two car manufacturers.
- Advantage: Larger market share.
- Disadvantage: Risk of monopoly abuse.
- Vertical Merger: Between firms at different production stages.
- Forward vertical: Manufacturer → retailer (e.g., Pepsi buying bottling plants).
- Backward vertical: Manufacturer → supplier (e.g., car firm buying steel supplier).
- Advantage: Control over supply chain.
- Disadvantage: Reduced flexibility if market changes.
- Conglomerate Merger: Between unrelated industries.
- Example: Food company merging with clothing brand.
- Advantage: Diversification, risk reduction.
- Disadvantage: Lack of expertise in new industry.
Written and Compiled By Sir Hunain Zia, World Record Holder With 154 Total A Grades, 7 Distinctions and 11 World Records For Educate A Change O Level And IGCSE Economics Full Scale Course
3.5.5 Economies and Diseconomies of Scale
Economies of Scale (cost per unit ↓ as firm grows):
- Internal Economies (within firm):
- Technical (use of advanced machinery).
- Managerial (specialist managers improve efficiency).
- Financial (cheaper loans for large firms).
- Marketing (bulk advertising).
- Purchasing (buying raw materials in bulk).
- External Economies (within industry):
- Shared suppliers, skilled labour pool, infrastructure benefits.
Diseconomies of Scale (cost per unit ↑ when firm too large):
- Poor communication.
- Lack of coordination.
- Lower worker motivation → inefficiency.
- Higher bureaucracy → slower decisions.
Examples:
- Supermarkets (economies from bulk buying).
- Multinational with too many layers of management (diseconomies).
Quick Examples for Exams
- Small firm: Family bakery → flexible but limited finance.
- Internal growth: Mobile company reinvests profits in R&D.
- Horizontal merger: Two banks merge.
- Vertical merger: Oil company buys petrol stations.
- Conglomerate merger: Amazon acquires film studio.
- Economy of scale: Car company lowers costs with mass production.
- Diseconomy of scale: Global corporation struggles with bureaucracy.
Memory Hooks
- Firm classification = Sector + Ownership + Size.
- Small firms = personal service but limited resources.
- Growth = Internal vs External.
- Mergers = Horizontal, Vertical, Conglomerate (HVC).
- Economies of Scale = “Really Fun People Make Tea” (Risk, Financial, Purchasing, Managerial, Technical).
- Diseconomies = Communication, Coordination, Motivation.
Written and Compiled By Sir Hunain Zia, World Record Holder With 154 Total A Grades, 7 Distinctions and 11 World Records For Educate A Change O Level And IGCSE Economics Full Scale Course