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Centralisation and Decentralisation in ACCA BT

Updated 11 October 2026 · Fact-checked

Centralisation means senior managers keep decision-making authority at the top. Decentralisation means authority is pushed down to lower levels and units. To answer exam questions, read the scenario, spot the factors (size, risk, skills, speed, control), then match them to the approach that fits best.

Understand Centralisation and Decentralisation

Every organisation must decide who makes decisions. In a centralised organisation, most important decisions are made by top management at head office. Lower levels follow instructions.

In a decentralised organisation, authority to make decisions is spread to divisional, regional or functional managers. Head office sets strategy and limits, but local managers decide day-to-day matters.

This is a question of degree. No organisation is fully centralised or fully decentralised. A retailer may centralise purchasing and pricing but let store managers decide staffing and displays.

Do not confuse decentralisation with delegation. Delegation is a manager giving a specific task and the authority to do it to a subordinate. The manager stays accountable for the result. Delegation is an individual act and can be withdrawn. Decentralisation is a deliberate, organisation-wide policy on where authority sits, usually built into the structure.

Factors that favour centralisation: a small organisation, a strong need for consistency, high-risk or high-value decisions, scarce expert skills at the centre, a crisis, and economies of scale. Factors that favour decentralisation: a large or geographically spread organisation, diverse products or markets, a need for fast local response, capable local managers, and a wish to motivate and develop staff.

Key formulas to remember

Centralisation: Authority concentrated at the top; Gives control, consistency and economies of scale, but is slower and may demotivate local managers.
Decentralisation: Authority spread to lower levels; Gives speed, local knowledge and motivation, but risks inconsistency and loss of control.
Delegation: Task + authority passed down; accountability stays with the delegator; Responsibility can be shared, accountability cannot be given away.
Span of control: Number of subordinates reporting directly to one manager; Wide span means a flatter structure and more freedom. Narrow span means a taller structure and closer supervision.
Scalar chain: Line of authority from top to bottom of the organisation; A Fayol idea. The longer the chain, the slower communication and decisions tend to be.

How to solve Centralisation and Decentralisation questions

Use this method for any question on who should make decisions, or on the pros and cons of each approach.

1Identify what the question asks: a definition, a difference, an advantage or disadvantage, or a recommendation.
2Check whether it is about the whole organisation (centralisation or decentralisation) or one manager and one task (delegation).
3Pick out clues in the scenario: size, locations, product range, skills of local managers, risk, need for speed.
4Match each clue to a factor favouring centralisation or decentralisation.
5Choose the option that fits most clues. Remember it is a matter of degree.
6For multiple response, select exactly the stated number of options and check each one against the definition.
7Check your answer for the trap of mixing up delegation with decentralisation, or advantages with disadvantages.

Quickest way: Clue-matching in 30 seconds

When to use it: Use it for two-mark objective test questions where you must choose an approach or an advantage.

Ask: is this about speed and local knowledge, or control and consistency?
Speed, local knowledge, motivation, large spread: choose decentralisation.
Control, consistency, scale savings, high risk, scarce skills: choose centralisation.
If the word is task or subordinate, think delegation.
Eliminate options that state a disadvantage when the question asks for an advantage.

Common mistakes in Centralisation and Decentralisation

Treating delegation and decentralisation as the same thing.
Both involve passing authority down.
Fix: Delegation is one manager to one subordinate for a task. Decentralisation is a structural policy for the whole organisation.
Saying the delegating manager is no longer responsible.
Students think passing authority passes everything.
Fix: The manager remains accountable. Only the task and the authority to do it are passed on.
Assuming decentralisation means no control from head office.
The word suggests independence.
Fix: Head office still sets strategy, budgets and limits, and monitors performance.
Treating the choice as all or nothing.
Textbooks define two extremes.
Fix: Say that organisations choose a degree, often centralising some decisions such as finance and decentralising others.
Mixing up span of control with the scalar chain.
Both appear in structure questions.
Fix: Span is the number of direct reports. Scalar chain is the number of levels in the line of authority.
Listing advantages when the question asks for disadvantages.
Rushing on a phone screen.
Fix: Underline the key word in the question before you read the options.

Worked examples

Example 1

A global food company sells different products in many countries. Tastes and regulations differ by country, and country managers are experienced. Which approach is most suitable, and why? Choose one: A) Centralisation, B) Decentralisation, C) Delegation only, D) A single head office decision for all markets.

Show the solution

Clues: many countries, different tastes and rules, experienced local managers.
Local knowledge and speed matter, and capable managers are available.
These factors favour decentralisation.
Option C is a one-to-one act, not a structural policy. Options A and D ignore local differences.

Answer: B) Decentralisation

Example 2

Select TWO advantages of decentralisation: (1) Consistent decisions across the organisation, (2) Faster decisions using local knowledge, (3) Greater motivation of local managers, (4) Economies of scale in decision-making.

Show the solution

Option 1 is an advantage of centralisation, because one centre decides.
Option 2 is a decentralisation advantage: decisions are taken close to the problem.
Option 3 is a decentralisation advantage: managers gain responsibility and development.
Option 4 is an advantage of centralisation, because the centre can combine activities.

Answer: Options 2 and 3

Exam tips

Read the question word carefully: advantage or disadvantage, and which approach.
For delegation questions, remember accountability stays with the manager.
Use scenario clues such as size, spread and skills to justify your choice.
In multiple response questions, select exactly the number stated.
Link span of control and scalar chain to structure: wide span goes with flat structures and often more decentralisation.

Practice questions from Business organisational structure

Centralisation and Decentralisation in other exams

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

Centralisation and Decentralisation: frequently asked questions

What is the difference between delegation and decentralisation?

Delegation is a manager passing a task and the authority to do it to a subordinate, while keeping accountability. Decentralisation is an organisation-wide policy of spreading decision-making authority to lower levels or units.

What are the advantages of decentralisation?

It speeds up decisions, uses local knowledge and frees top managers for strategy. It also motivates and develops local managers. The cost is possible inconsistency and weaker control.

When is centralisation better?

It suits small organisations, high-risk decisions, and situations needing consistency or economies of scale. It is also useful in a crisis or when expert skills are only at the centre.

How do span of control and scalar chain relate to this topic?

A wide span of control gives a flatter structure, shorter scalar chain and usually more freedom for staff. A narrow span gives a taller structure, a longer chain and often tighter central control.