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Strategic Business Leader · Stakeholder analysis and organisational social responsibility

Mendelow's Power-Interest Matrix for ACCA SBL Explained

Updated 11 October 2026 · Fact-checked

Mendelow's matrix maps each stakeholder on two axes: power over the organisation and interest in what it does. The four boxes are key players, keep satisfied, keep informed and minimal effort. Each box suggests a strategy. In SBL, place named stakeholders from the case, justify each placement, then recommend actions.

Understand Mendelow's Power-Interest Matrix

Every organisation has many stakeholders. They do not all matter equally. Mendelow's matrix helps you decide who needs attention first. It sorts stakeholders on two questions: how much power do they have to affect the organisation, and how much interest do they have in its decisions?

Power is the ability to influence strategy or force an outcome. It can come from money, legal rights, control of resources, expertise or the ability to damage reputation. Interest is how much the stakeholder cares about, or is affected by, the organisation's actions. Interest is not the same as power. A local community may care a great deal but be unable to change a decision.

Combining high or low power with high or low interest gives four boxes:

  • High power, high interest: key players. Manage closely. Involve them in decisions and seek their support.
  • High power, low interest: keep satisfied. Consult them and avoid surprises. Their interest may rise if they feel threatened.
  • Low power, high interest: keep informed. Communicate regularly. They can influence others or form alliances.
  • Low power, low interest: minimal effort. Monitor with little cost.

The matrix is a snapshot. Stakeholders move between boxes as events change. A new regulation, a scandal or a social media campaign can turn a low-power group into a powerful one. Good answers say where a stakeholder is now, where it might move, and what to do about it.

The matrix also has limits. It does not show how stakeholders will behave, whether they support or oppose the strategy, or how they relate to each other. Placement is a judgement, so you must justify it from the case.

Key rules to remember

Key players
High power + High interest → manage closely
Involve in decisions, negotiate and seek active support. Example: major investors or a dominant lender in a restructuring.
Keep satisfied
High power + Low interest → keep satisfied
Consult and reassure. Watch for events that could raise their interest and move them to key players.
Keep informed
Low power + High interest → keep informed
Give regular, honest information. They may lobby, campaign or join other groups to gain power.
Minimal effort
Low power + Low interest → minimal effort
Monitor at low cost. Do not ignore them forever, as positions can change.

How to solve Mendelow's Power-Interest Matrix questions

Use this method for any SBL task that asks you to analyse, prioritise or manage stakeholders.

  1. 1Read the requirement. Check whether you must map, justify, recommend strategies, or all three.
  2. 2List the stakeholders named in the case. Add an obvious one only if the case supports it.
  3. 3For each one, judge power and interest. Quote evidence from the scenario, such as share ownership, contracts, regulatory authority or stated concerns.
  4. 4Place each stakeholder in a box and name the box clearly. Use a simple sketch or a list by box.
  5. 5Recommend a specific strategy for each important stakeholder. Tie it to the scenario, not generic words like communicate.
  6. 6Comment on movement. Say which stakeholders may shift box and what would trigger it.
  7. 7Note conflicts between stakeholders and the limits of the model if the requirement asks for evaluation.
  8. 8Finish with a clear priority or conclusion that answers the task, in the format asked for, such as a report or briefing note.

Quickest way: Four-box shortlist under time pressure

When to use it: Use when the task is worth only a few marks or you have little time left.

  1. Underline the stakeholders in the scenario.
  2. Write them in four lists headed KP, KS, KI and ME.
  3. Next to each, write a five-word reason from the case.
  4. Add one action per key player and keep satisfied stakeholder.
  5. Add one sentence on who may move box and why.

Common mistakes in Mendelow's Power-Interest Matrix

  • Placing stakeholders without any evidence.

    Students memorise the boxes and treat placement as obvious.

    Fix: Give a reason from the scenario for both power and interest. One short evidence point per axis is enough.

  • Confusing power with interest, such as placing employees as high power just because they care a lot.

    Strong feelings seem to imply influence.

    Fix: Ask separately what the stakeholder can do to affect the organisation, and how much it cares. Care without means to act is high interest, low power.

  • Listing strategies as one-word labels like keep informed.

    Students think naming the box answers the requirement.

    Fix: Say what you would actually do: who communicates, how, how often and why it helps in this case.

  • Ignoring that positions change.

    The matrix looks static on paper.

    Fix: Add a line on likely movement and the trigger, such as media attention, a vote or new regulation.

  • Drawing the grid but not applying it to the task.

    Students spend time on the diagram and run out of time.

    Fix: Keep the diagram small. Spend most of your time on justification, strategy and recommendations that answer the requirement.

  • Treating ignorable stakeholders as irrelevant, or leaving out ethical or public interest groups.

    Focus on money and power only.

    Fix: Consider community, environment and regulators. Low power today does not mean low risk tomorrow.

Worked examples

Example 1

Verdana Foods plans to close a processing plant in a small town. The plant employs many local people. The largest institutional investor holds a big shareholding but rarely comments on operations. The local council has no legal power over the closure but its members care strongly. A supplier of packaging has a small contract and little concern. Classify each stakeholder using Mendelow's matrix and recommend a strategy for each. (10 marks style)

Show the solution
  1. Institutional investor: high power because of its large shareholding and ability to vote or sell. Low interest because it rarely comments on operations. Box: keep satisfied.
  2. Strategy for the investor: brief it on the financial rationale before announcement. Avoid surprises. If it signals concern, it may become a key player.
  3. Employees and unions: interest is very high because jobs are at stake. Power is limited by the case facts, though strikes or publicity could raise it. Box: keep informed, with risk of moving upward.
  4. Strategy for employees: consult early, explain the reasons, offer redeployment or support. This reduces resistance and reputational damage.
  5. Local council: high interest, low formal power. Box: keep informed. Its public voice and links to media could add pressure.
  6. Strategy for council: regular meetings and a transition plan for the town to maintain goodwill.
  7. Packaging supplier: low power and low interest given its small contract. Box: minimal effort. Give notice in line with the contract and monitor.
  8. Conclude that the investor is the priority for approval and employees the priority for managing risk.

Answer: Investor: keep satisfied. Employees and council: keep informed, with potential to gain power. Packaging supplier: minimal effort. Strategies are to brief the investor early, consult and support employees, engage the council, and give the supplier standard notice.

Example 2

Explain why Mendelow's matrix is a dynamic tool, using an example, and give two limitations. (8 marks style)

Show the solution
  1. State that positions on the matrix are not fixed. Power and interest change with events.
  2. Example: a regulator with low interest in a firm becomes high interest after a data breach. It moves from keep satisfied to key player and needs close management.
  3. Another example: a small customer group gains power through a social media campaign, moving from keep informed to key player.
  4. Conclude that the organisation must review the matrix regularly and plan for movement, not just place stakeholders once.
  5. Limitation one: the matrix shows power and interest only. It does not show whether a stakeholder supports or opposes, so attitude must be assessed separately.
  6. Limitation two: placement is subjective. Different managers may judge power differently, and the model ignores relationships and alliances between stakeholders.

Answer: The matrix is dynamic because events change power and interest, for example a regulator moving from keep satisfied to key player after a data breach. Limitations: it ignores stakeholder attitude and it relies on subjective judgement while ignoring links between stakeholders.

Exam tips

  • Always justify placement with a fact from the case. A bare grid earns few marks.
  • Link strategy to the scenario. Say what the company should do, who should do it and why it helps.
  • Mention movement between boxes when the case hints at a trigger such as a protest, vote or new law.
  • Use the matrix as a tool, not the whole answer. Add conflicts, ethics or public interest points when the requirement asks for them.
  • Keep professional skills in mind: be concise, structured and commercially realistic, and write in the format requested.

Practice questions from Stakeholder analysis and organisational social responsibility

Mendelow's Power-Interest Matrix in other exams

The same ground in other exams, if you are preparing for more than one or want another angle on it.

Mendelow's Power-Interest Matrix: frequently asked questions

What are the four boxes in Mendelow's matrix?

They are key players (high power, high interest), keep satisfied (high power, low interest), keep informed (low power, high interest) and minimal effort (low power, low interest). Each suggests a different level of engagement.

How do I decide if a stakeholder has high power in SBL?

Look for evidence in the case of its ability to affect the outcome. Examples are voting rights, funding, contracts the firm depends on, regulatory authority or the ability to damage reputation. Say which source of power applies.

Should I draw the matrix in the exam?

A small sketch can help, but it is not required unless the task asks for it. Marks come from justified placement and sensible strategies. A clear list by box works equally well.

Can a stakeholder move between boxes?

Yes. Power and interest change with events such as scandals, regulation changes or campaigns. Good answers mention likely movement and how the organisation should prepare.