IB Business Management SLTopic 6 — The Business Management ToolkitPaper 1 & 2Decision-making tool~10 min read
Circular Business Models
For two centuries businesses worked in a straight line: take materials, make something, sell it, and let the customer throw it away. A circular business model bends that line into a loop, so what comes out of the end goes back into the start. It is partly an environmental idea and partly a very practical one about not paying for materials twice.
📚 What you need to know
A circular model is designed to minimise the use of scarce resources and reduce waste while getting the most value out of materials.
Materials are recycled, reused or regenerated instead of thrown away. It is also called the cradle-to-cradle approach.
Products are designed for durability, reparability and recyclability from the start.
It needs a shift in mindset across product design, supply chains and waste management.
Key principles include design for longevity, resource efficiency, recycling and reuse, product as a service, biomimicry, and collaboration.
Benefits include lower waste, less dependence on finite resources, cost savings, a stronger reputation and protection from price swings in raw materials.
The costs are real: redesign, new suppliers, and customers who may not pay more.
Linear versus circular
The difference is easiest to see side by side. In the linear model, value leaves the business the moment the customer is finished. In the circular model, it comes back.
Everything in the loop depends on the first box. A product glued shut at the design stage can never be repaired or recycled properly.
The principles
Principle
What it means in practice
Design for longevity
Build products to last, so they need replacing less often
Resource efficiency
Use fewer materials and less energy at every stage of the life cycle
Recycling and reuse
Turn products at the end of their life into new products or components
Product as a service
Lease or rent rather than sell, so the firm keeps ownership and takes the item back
Biomimicry
Copy how natural systems work, where nothing is wasted
Collaboration
Work with suppliers and customers to create a closed loop nobody could build alone
“Product as a service” is the principle students understand least and examiners like most. If a firm rents out its equipment rather than selling it, it suddenly has a strong financial reason to make that equipment last — because it gets it back.
Is it worth doing?
✓ ADVANTAGES
Less waste and lower disposal costs.
Less dependence on finite resources, and more protection when raw material prices jump.
Cost savings through using fewer new materials and less energy.
A stronger reputation with customers, staff and increasingly with retailers.
Repair and refill services can become new revenue streams.
✗ DRAWBACKS
High set-up costs: redesigning products and retooling production is expensive.
Recycled materials can be dearer or harder to source reliably.
Longer-lasting products may cut repeat sales in the short term.
It needs customers to take part by returning items, and many will not bother.
Risk of accusations of greenwashing if the claims outrun the reality.
The awkward question. If a business builds products that last twice as long, it sells half as many. The strongest answers acknowledge this and explain how firms get round it — charging more, selling repairs, or renting instead of selling.
Worked examples
WE 1
Define the term “circular business model”
Define the term “circular business model”. [2]
Answer
A circular business model is one designed to minimise the use of scarce resources and reduce waste, ✓
by recycling, reusing or regenerating materials rather than disposing of them after use. ✓the aim, then the method. Both halves needed.
WE 2
Explain one advantage and one disadvantage of going circular
Case study: Ardent Tools makes cordless drills sold through hardware chains. Its drills are glued shut, so a failed battery means the whole tool is scrapped. Lithium prices rose 40% last year. It is considering redesigning the drill so batteries can be swapped, and offering a repair service. Redesign would cost $1.2m and two of its three retailers say customers rarely return old tools.
Explain one advantage and one disadvantage to Ardent Tools of adopting a circular business model. [4]
Advantage
Recovering and reusing battery materials would reduce how much lithium Ardent has to buy, which matters because the price rose 40% last year and is squeezing its costs. ✓✓
Disadvantage
The loop only works if drills come back, and two of Ardent’s three retailers say customers rarely return old tools, so it could spend $1.2m on a redesign and still receive very little material. ✓✓
the 40% and the $1.2m are what turn two textbook points into applied ones.
WE 3
Discuss adopting a circular model (10 marks) — outline
Discuss the implications for Ardent Tools of adopting a circular business model. [10]
Paragraph 1 — define and link
A circular model keeps materials in use rather than disposing of them. For Ardent this means redesigning a drill that is currently glued shut so it cannot be repaired at all.
Paragraph 2 — the case for, balanced
With lithium up 40%, reclaiming batteries would cut exposure to a volatile input price, and a repair service could earn revenue from tools already sold. However, $1.2m is a large upfront cost to recover before any of that starts.
Paragraph 3 — the case against, balanced
Two of three retailers report customers rarely return tools, so the loop may never close. On the other hand, a swappable battery is a genuine selling point against rivals whose drills are disposable, so the redesign could pay for itself in sales alone.
Paragraph 4 — conclusion with limitations
The redesign looks worth doing even if returns stay low, because the customer benefit stands on its own. The case study does not say what proportion of a drill’s cost is lithium, or whether retailers would run a return scheme, and both would decide whether the full loop is realistic.
notice the conclusion separates the two reasons for redesigning — that is judgement, not summary.
💡 Exam tip
Start at design. Almost every circular argument traces back to how the product was designed.
Use the cost figure. Circular models have big upfront costs and slow savings, and the case study usually gives you both.
Ask whether customers will take part. A loop that depends on returns is only as good as the return rate.
Look for the new revenue stream — repairs, refills, resale, leasing.
Link it to STEEPLE. Environmental and legal pressure often explains why the firm is considering it now.
Be balanced. “It is good for the planet” on its own will not reach the top band.
⚠ Common mix-up
Thinking circular just means recycling. Recycling is the last resort; designing for repair and reuse comes first.
Assuming it is always cheaper. It usually costs more now and saves later.
Forgetting the customer. The model fails if nobody returns the product.
Confusing it with corporate social responsibility. CSR is about behaviour; circular models change how the product itself is made.
Ignoring the sales problem. Products that last longer are bought less often.
Writing only about the environment. The financial case is where the marks are.
Up next: Applying SWOT and STEEPLE to a Business — the toolkit stops being theory and starts being an exam answer.
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