Types of External Growth (AQA A Level Business): Revision Note
Exam code: 7132
Types of integration
External growth usually takes place when firms join in one of three broad ways
1. Vertical integration
This is a merger or takeover of another firm in the supply chain or different stage of the production process
E.g. An ice cream manufacturer merges with a dairy farm or an ice cream cafe chain
Examples of vertical integration

Forward vertical integration involves a merger or takeover with a firm further forward in the supply chain
E.g. A dairy farmer merges with an ice cream manufacturer
Backward vertical integration involves a merger/takeover with a firm further backwards in the supply chain
E.g. An ice cream retailer takes over an ice cream manufacturer
Evaluating vertical integration
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2. Horizontal integration
This is a merger or takeover of a firm at the same stage of the production process
E.g. An ice cream manufacturer buys another ice cream manufacturer
Evaluating horizontal integration
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3. Conglomerate integration
This is a merger or takeover between firms in entirely different industries
E.g. An ice cream manufacturer buys a clothing company
Evaluating conglomerate integration
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Mergers
A merger occurs when two or more companies combine to form a new company
The original companies cease to exist and their assets and liabilities are transferred to the newly created entity
Firms merge to become stronger together than they would be apart
That strength comes from lower costs, more customers, new capabilities or less competition
Examples of recent UK mergers
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Takeovers
A takeover occurs when one company purchases another company, often against its will
The acquiring company buys a controlling stake in the target company's shares (>50%) and gains control of its operations
Reasons for mergers and takeovers
Reason | Explanation | Example |
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Economies of scale |
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Rapid entry into new markets or segments |
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Acquire capabilities or technology |
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Reduce competitive pressure |
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Increased market power |
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Common issues with takeovers
Mergers and takeovers can look attractive, but business leaders must also plan for culture clashes, higher debt and the real possibility that regulators will refuse the merger
Hard-to-blend cultures and systems
When two very different organisations join together, employees may clash over ways of working and IT systems may be incompatible
Managers can spend months fixing problems instead of improving products
Expected cost savings and new ideas can stall, leading to poorer performance and lower staff morale
E.g. Kraft Foods and Heinz's merger in 2015 led to significant cost-cutting which left some brands under-funded and less able to compete
Heavier debt burden
Mergers are often paid for with borrowed money
High interest payments use cash that could alternatively fund research, marketing or new factories
If profits fall, the enlarged business may be forced to cut dividends, sell assets or issue new shares
E.g. Dell borrowed $48 billion in 2016 to finance its purchase of rival EMC, which affected cash flow for years and was a key reason Dell had to raise finance by selling shares on the stock market in 2018
Regulation
Competition watchdogs such as the UK's Competition and Markets Authority (CMA) can delay a merger for years, demand that parts of the business be sold off, or block the deal entirely if they think it will hurt consumers
Companies can spend years and millions of pounds on planning a merger that is never approved
The CMA stopped the planned £12 bn merger of Sainsburys and Asda in 2019, saying it would push up prices for groceries and fuel and limit competition
Joint ventures
A joint venture is when two businesses join together to share their knowledge, resources and skills to form a separate business entity for a limited period of time
E.g. The mobile network EE is a joint venture formed by the French mobile network, Orange and the German mobile network, T-Mobile
Reasons for joint ventures
Problems with joint ventures
Conflicting objectives
If the parent companies want different things, everyday decisions slow down and the joint venture can lose focus
E.g. In 2024 ITV sold its 50% stake in Britbox to the BBC, saying the service would be simpler to run under one owner after the partners’ strategies began to diverge
Too small to compete
A joint venture that stays small may not have the money, stores or marketing power needed to stand up to larger rivals, so it struggles to grow
E.g. In 2016, Sainsburys and Dansk Supermarked's joint venture Netto ended because nationwide expansion would have required more investment than they were prepared to spend
Limited control for a minority partner
A parent that owns only a small share may have little say in its strategy
E.g. Tesco ended its minority stake in its Chinese grocery joint venture in 2020, drawing a line under years of weak performance
Examiner Tips and Tricks
A joint venture is a shared project, not a takeover or venture capital deal
Compare its lower risk and knowledge‑sharing benefits with the loss of some control to show balance
Franchising
Franchising is a business model where an individual (franchisee) buys the rights to operate a business model, branding, and support from a larger company (franchisor) in exchange for an initial lump sum plus ongoing fees
The franchisee operates the business under the franchisor's established system and receives training, marketing support, and ongoing assistance
Examples of fast food franchises
Evalauating franchise growth
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