Corporate strategy - explained simply
Key concepts (6)
This module is about corporate strategy: the choices at the level of the whole company. Which businesses do you run, and what does the head office add? The book chapter is Whittington (2023), chapter 8, pages 155 to 169.
Why do companies exist at all?
Coase asked why there are companies and not only markets. The answer is transaction costs: using the market costs money. You have to search for a partner (search costs), negotiate (bargaining costs) and monitor and enforce agreements (enforcement costs). If those costs are high, it is cheaper to organise the activity inside the company.
Inside the company costs also grow: overhead and errors from an organisation that is too large. So there is a limit to size. Coase speaks of the optimal balance between internal and external contractual relationships. This is at once the first reason to diversify.
Do it yourself or outsource?
Williamson built on this with transaction cost economics. The core risk is opportunism: the other party uses your dependence for its own benefit. That risk is large when:
- there are few alternative partners;
- the situation is complex and changeable;
- there is asset specificity: your investment only has value with this one partner.
With a lot of opportunism you integrate (vertical integration), otherwise you can choose outsourcing. Integrating towards suppliers is called backward integration, towards buyers forward integration. It also depends on who has the best resources and capabilities.
Growth directions: the Ansoff matrix
The Ansoff matrix shows four directions, based on products and markets.
| Direction | Meaning | Example from the lecture |
|---|---|---|
| Market penetration | More sales with existing products in existing markets | Huizenga and Waste Management |
| Product development | New products in existing markets | Apple |
| Market development | Existing products in new markets (new users or geographies) | Catawiki |
| Diversification | New products in new markets | DSM |
Market penetration has three constraints: retaliation by competitors, legal constraints (for example the competition authority) and economic constraints (the growth costs more than it yields). With product development the risks are new resources and capabilities and the project management. With diversification you distinguish between related and unrelated (conglomerate diversification).
Why do companies diversify?
The book names four drivers that create value:
- Economies of scope: the same resources serve more activities (Uber Eats uses the existing drivers and app).
- Stretching corporate management capabilities: the head office can deploy its skills more widely. The limit is the dominant logic: the management’s way of thinking does not fit every business.
- Exploiting superior internal processes: the head office allocates money better than the market (internal capital market).
- Increasing market power: you become more powerful, for example through mutual forbearance, cross-subsidising, cheaper borrowing or bulk buying.
There are also three drivers that destroy value: responding to market decline, spreading risk and managerial ambition. The lecturer adds a caveat: market decline and spreading risk are not always value-destroying.
The value of the head office
The core question is whether the head office, the corporate parent, adds more value than it costs. The parent adds value through a vision (envisioning), synergies, coaching, central services and intervening. It also costs something: management costs, bureaucracy and a clouded view of financial performance. If a parent has no parenting advantage, it runs a risk in the market for corporate control.
Three roles
| Role | Head office | Emphasis |
|---|---|---|
| Portfolio manager | Small | Investing and intervening |
| Synergy manager | Large | Cooperation between the units |
| Parental developer | Large | Own central capabilities to develop the units |
Which business fits the parent?
Campbell’s parenting-fit matrix assesses each business on two questions: does it fit the parenting opportunities (where the parent can improve something) and are there misfits with the key success factors (KSFs, what the business needs to win)?
- Heartland: fits well, no misfit. Keep.
- Edge of heartland: fits partly.
- Ballast: no fit, no misfit. No harm, no value.
- Alien territory: no fit, but misfit. Divest.
- Value trap: fit on the opportunities, but misfit on the KSFs. It looks attractive, but the parent cannot deliver what is needed.
The example in the lecture is Chipotle at McDonald’s. McDonald’s invested in 1998 and could then exploit the parenting opportunities (drive-through, breakfast, advertising), but there was misfit on Chipotle’s KSFs: a value trap. In the lecture the conclusion is that divesting fits (the McSplit).
The BCG matrix
The BCG matrix divides businesses by market growth and relative market share: star, question mark, cash cow and dog. The idea is balance: the cash cows pay for the stars and the question marks. The book names four problems: what is high or low, the assumption that the money must come from within, the motivation of managers in the cash cows and dogs, and ignoring commercial links between businesses.
What to remember
- Coase leads to transaction costs and a limit to company size.
- Williamson: opportunism with few alternatives, complexity and asset specificity.
- Ansoff: four directions and with penetration three constraints.
- Four drivers that create value, three that destroy it.
- Three parenting roles and five types of business in the parenting-fit matrix.
- Link every answer to the book, otherwise you get only part of the points.
Corporate strategy - what you must be able to do on the exam
Key concepts (8)
Source: Whittington (2023) chapter 8 pages 155-169, Campbell, Goold and Alexander (1995) pages 129-132, videos 4.0 to 4.3 and College 4. Chapters 8.7 and 8.8 (internationalisation, entry modes) belong to module 5.
How is this tested?
In the sample exam (question 4, 25 points) a company with an acquisition was described, with four sub-questions:
- a. Explain with Coase why the company exists or does an activity internally (5 points, 20 words).
- b. Determine which Ansoff direction it is and name the advantages (10 points, 75 words).
- c. Name a factor that hinders growth (5 points, 20 words).
- d. Name a diversification driver (5 points, 20 words).
The marking scheme rewards the link to the book. A good answer without that link yields only part of the points (in the sample +3 or +1). So use the English terms and show which concept you are applying.
1. Coase and transaction costs
- Companies exist because the market costs something: transaction costs.
- Three kinds: search costs (finding a partner), bargaining costs (negotiating and recording) and enforcement costs (enforcing compliance).
- If the costs of the market are higher than those of internal coordination, you carry out the activity yourself.
- Limit to size: internal overhead and errors grow along. Coase looks for the optimal balance between internal and external contractual relationships.
- This is the first reason to grow or diversify.
2. Williamson and vertical integration
- Transaction cost economics: the risk of the market is opportunism.
- Opportunism is large with (1) few alternatives, (2) complex and changeable circumstances and (3) asset specificity.
- High risk: vertical integration. Backward integration goes towards suppliers, forward integration towards buyers. Low risk: outsourcing.
- The choice also depends on the relative resources and capabilities: who can do it better?
- Horizontal integration is a form of diversification.
3. Ansoff matrix
| Direction | Characteristic | Risk or constraint |
|---|---|---|
| Market penetration | Existing product, existing market | Retaliation, legal constraints, economic constraints |
| Product development | New product, existing market | New resources and capabilities, project management |
| Market development | Existing product, new market (new users or geographies) | Unknown market |
| Diversification | New product, new market (zone D) | Unrelated diversification (conglomerate diversification); zones B and C (product and market development) are related diversification |
Examples from the lecture: Wayne Huizenga and Waste Management (an industry roll-up, consolidating a fragmented sector), Apple (product development), Catawiki (market development) and DSM (diversification).
Exam tip: for an Ansoff question, first name the direction, then give one or two advantages with case evidence (for example market share and scale with penetration, new customers with market development), and only then the constraint.
4. Diversification drivers
Value-creating (four):
- Economies of scope: the same resources or capabilities serve more activities. Tangible (for example a factory, Uber Eats with drivers and app) or intangible (brand, knowledge, for example Unilever). Limitation: De Vegetarische Slager did not fit.
- Stretching corporate management capabilities: deploying the head office’s skills more widely. The limit is the dominant logic of Prahalad and Bettis: the management’s way of thinking does not fit every business.
- Exploiting superior internal processes: the parent is a miniature capital market (internal capital market) and allocates capital better than the external market, through better information and lower transaction costs.
- Increasing market power: mutual forbearance (multi-market competitors restrain each other), cross-subsidising, cheaper borrowing, bulk buying and serving one large customer.
Value-destroying (three): responding to market decline, spreading risk and managerial ambition (pay rises with size). The lecturer adds a caveat to the first two: they are not always value-destroying.
Synergies (example: Disney and Marvel) are the benefits of businesses that together achieve more than apart.
Practice question: name a driver and substantiate with the case. One driver is enough if one is asked for; give the name in English.
5. The corporate parent
The lecturer’s core question: what is the value of the head office?
- Value-adding: envisioning (vision and direction), facilitating synergies, coaching, central services and resources, intervening.
- Value-destroying: management costs, bureaucratic complexity and clouding the financial performance (obscuring).
- Parenting advantage: the business does better under this parent than under another.
- If this is missing, the market for corporate control threatens (takeover or break-up).
Three parenting roles
| Role | Size | Emphasis |
|---|---|---|
| Portfolio manager | Small head office | Investing and intervening (private equity) |
| Synergy manager | Large | Cross-links and cooperation between units |
| Parental developer | Large | Downward: central capabilities to develop the units |
Formative test: the role that emphasises central capabilities is the parental developer. The conglomerate is not trusted because the added value of the parent is not clear.
6. Parenting-fit matrix (Campbell)
Assess each business on three points:
- Critical success factors (CSFs; in the lecture: key success factors, KSFs): what the business needs to win.
- Parenting opportunities: where the parent can improve something.
- Parenting characteristics: what the parent can do and does.
The axes are fit with the opportunities (horizontal) and misfit with the KSFs (vertical). Five types:
| Type | Opportunities | Misfit KSFs | Advice |
|---|---|---|---|
| Heartland | High fit | None | Core, keep |
| Edge of heartland | Partial | Limited | Review carefully |
| Ballast | No fit | None | No harm, no value |
| Alien territory | No fit | Misfit | Divest |
| Value trap | Fit | Misfit | Looks wonderful; often divest |
Examples from the lecture: Unilever and Calvin Klein; a hotel business as value trap.
7. BCG matrix
- Star: high growth, high share. Question mark: high growth, low share. Cash cow: low growth, high share. Dog: low growth, low share.
- Criteria for a portfolio: balance (cash cows pay for stars and question marks), attractiveness and fit.
- Four problems: the definition of high and low, the assumption that financing must be internal, motivation problems in cash cows and dogs and ignoring commercial links.
- Use in the lecture: the BCG matrix and the parenting-fit matrix were both used to decide on divesting or acquiring.
8. The Chipotle case at McDonald’s (Illustration 8.3)
- Investment of 50 million dollars in 1998; from 13 to 500 outlets; in 2005 McDonald’s had 90 percent.
- Initiatives: drive-through, breakfast and advertising; eight failed franchises; supply problems.
- McDonald’s sold Chipotle (in the book: “a McSplit”) and received 1.5 billion dollars after an investment of 360 million dollars; in 2021 Chipotle was worth 53.4 billion dollars.
- Analysis: McDonald’s was not a good parental developer for Chipotle: fit with the opportunities, but misfit on the KSFs. That is a value trap, so divest. In Lecture 4 the lecturer also calls “edge of heartland” a good reading; both can be defended if you justify it.
How to build an answer
- Name the concept in English (for example transaction costs, retaliation, parental developer).
- Give the meaning in one sentence, in your own words.
- Link it to a fact from the case (a number, a name, an activity).
- Close with the conclusion or judgement that the question asks for.
If the word limit does not fit, drop the repetition of the question and keep steps 1, 3 and 4. With 20 words, one concept with one case fact is enough.
Common mistakes
- Naming the concept without linking it to the case.
- Mixing up Coase and Williamson: Coase is about transaction costs and company size, Williamson about opportunism and asset specificity.
- Confusing market development and diversification: with market development the product stays the same.
- Naming all three roles when one is asked for. Choose the role that fits the description in the case.
- Describing a value trap as something bad: it looks attractive, that is the point.
Corporate strategy - as the lecturer says it
Key concepts (10)
The quotes are given literally, in the original language (Dutch), as they appear in the transcripts, including spoken language, ellipses and spelling or recognition errors of the automatic transcription. Under each quote is what it means for you, in English.
The exam signal: there is none
In College 4 and in the videos of module 4 the lecturer nowhere says that something will be an exam question. What is written here is therefore not an announced signal. The weight follows from three things: the form of question 4 in the sample exam (Coase, Ansoff, hindering factor, diversification driver), the formative test (conglomerate and parenting roles) and the sentences in which the lecturer himself stresses what is important.
The lecturer’s core question
Gezegd door Taco Reus in College 4 (25-09-2026), minuut 107:43:
Dus wat is de waarde van het hoofdkantoor? Is eigenlijk een soort kernvraag in strategisch management.
He himself calls this question the core of the subject. If for every corporate strategy question you can say what value the parent adds, you are in good shape.
Coase and transaction costs
Gezegd door Taco Reus in Video 4.1 (25-09-2026), minuut 06:20:
Dat noemen we transactiekosten. Je kan er tenminste drie onderscheiden. Zoekkosten, search costs.
Three kinds: search costs, bargaining costs and enforcement costs.
Gezegd door Taco Reus in College 4 (25-09-2026), minuut 108:46:
Je kan niet blijven groeien omdat managers gaan fouten maken.
This is the limit to company size. Besides the errors, also mention the bureaucratic complexity.
Williamson and vertical integration
Gezegd door Taco Reus in Video 4.2 (25-09-2026), minuut 04:25:
Volgens Williamson mislukken hierdoor transacties op de markt. Vooral ten eerste wanneer er weinig alternatieve marktspelers zijn die de activiteit kunnen uitvoeren
The first of the three characteristics. The other two are a complex and dynamic activity and asset specificity.
Gezegd door Taco Reus in Video 4.2 (25-09-2026), minuut 05:36:
Dus transactiekosten vormen een belangrijke driver voor bedrijven om meer en diverse activiteiten binnen het bedrijf te integreren.
With this you connect Coase and Williamson to diversification.
Ansoff
Gezegd door Taco Reus in Video 4.3 (25-09-2026), minuut 01:06:
Markt penetration houdt in dat een bedrijf bestaande producten of diensten verder uitbouwt in de markt waar het al actief in is.
The definition you can take over. The transcription writes “markt”; write market penetration yourself.
Gezegd door Taco Reus in Video 4.3 (25-09-2026), minuut 03:10:
Dat trouwens niet makkelijk is en vaak grote investeringen en risico’s met zich meebrengen.
This is about the new resources and capabilities in product development. Name this risk if the question asks for a disadvantage.
The four drivers that create value
Gezegd door Taco Reus in College 4 (25-09-2026), minuut 32:03:
De vegetarische slager is te ver… van ons bed. En daar gaat het dus mis.
The example of a failed economies of scope at Unilever: the acquisition did not fit the core products.
Gezegd door Taco Reus in College 4 (25-09-2026), minuut 34:05:
Maar in dat korte stukje… wordt even een concept… genoemd die best wel belangrijk is. The dominant logic.
The lecturer himself stresses that this concept is important. Learn it: the shared way of thinking of the top management, which limits what diversification the head office can steer.
Gezegd door Taco Reus in College 4 (25-09-2026), minuut 37:53:
Dus dit is meer… echt een soort… deze drijfveer is veel… cognitiever.
Stretching corporate management capabilities is about thinking and beliefs, less about numbers.
Gezegd door Taco Reus in College 4 (25-09-2026), minuut 47:22:
Dus dat noem je ook wel… miniature capital markets.
The internal capital market: moving capital and managers faster than the external market can.
Gezegd door Taco Reus in College 4 (25-09-2026), minuut 49:21:
Mutual forbearance is eigenlijk… de dreiging van… dat er mogelijk een harde slag… komt.
The mechanism behind market power: everyone holds back because retaliation threatens.
The drivers that destroy value
Gezegd door Taco Reus in College 4 (25-09-2026), minuut 51:22:
Het is natuurlijk… wel zo dat… ik zeg daar ook weer… potentially value destroying
This is the caveat: market decline is not always value-destroying. So write potentially.
Gezegd door Taco Reus in College 4 (25-09-2026), minuut 54:24:
Er is een lineair… positieve relatie tussen… de grootte van een bedrijf en het… salaris van degene die het… gunt.
This is managerial ambition. Use it as an explanation of why managers make acquisitions.
Parenting roles and the parenting-fit matrix
Gezegd door Taco Reus in College 4 (25-09-2026), minuut 112:52:
Maar die houden zich dan helemaal niet bezig met de unit. De units doen het allemaal helemaal zelf. Dan heb je een kleine kantoor.
The picture of the portfolio manager: small head office, independent units.
Gezegd door Taco Reus in College 4 (25-09-2026), minuut 119:03:
Dan zit je in de heartland.
The full context is: a good fit with the key success factors, the parenting opportunities and the characteristics.
Gezegd door Taco Reus in College 4 (25-09-2026), minuut 120:05:
Dan heb je een value trap. Het lijkt prachtig. Perfect. Maar het is precies wat je niet moet hebben.
The value trap is the case that goes wrong most often. The example in the lecture is De Vegetarische Slager: the fit seems to be there, the misfit on the KSFs hides itself.
Gezegd door Taco Reus in College 4 (25-09-2026), minuut 121:06:
Dan wordt het een soort ballast. Voor het moederbedrijf.
Ballast is what the parent cannot develop.
BCG matrix
Gezegd door Taco Reus in College 4 (25-09-2026), minuut 123:21:
En dan wordt het steeds meer een dog. Dat is in dit geval. Een vriendelijke beest. Maar de dog is niet wat je wil hebben.
A business moves in the matrix: a star becomes a cash cow and can then become a dog if growth flattens.
The Chipotle case
Gezegd door Taco Reus in College 4 (25-09-2026), minuut 153:21:
Denk je dat dat een verstandige was voor McDonalds?
The question belongs to the analysis of the parental developer role. The answer in the group was no; the conclusion of the case is that McDonald’s did not do this wisely.
What to do with it
- Link all concepts to the case, in English.
- No exam signal: learn all models broadly, but spend extra time on Coase, Williamson, Ansoff, the four drivers and the parenting-fit matrix, because the lecturer explains most there.
- Note the caveat on market decline and spreading risk.