The Triple Bottom Line (TBL), associated with John Elkington’s work in the 1990s, encourages organizations to consider economic, social and environmental performance together. It is commonly summarized as People, Planet and Profit.
The Three Dimensions
| Dimension | Supply-chain questions | Example measures |
|---|---|---|
| People | How are workers, suppliers and communities affected? | Safety, labor compliance, training, grievance closure |
| Planet | What environmental impacts arise across sourcing, production and logistics? | GHG emissions, energy, waste, packaging, water |
| Profit / economic value | Is the operating model financially sustainable? | Total cost, margin, productivity, working capital, lifecycle cost |
Supply-Chain Example
A buyer comparing two packaging suppliers should not evaluate only unit price. The decision may consider total delivered cost and waste disposal (economic), recycled content and transport emissions (environmental), and supplier labor/safety controls (social). The right weighting depends on business priorities, legal requirements and product needs.
How to Apply TBL Practically
- Identify the decision and relevant stakeholders.
- Define material economic, social and environmental impacts.
- Select measurable indicators rather than broad slogans.
- Compare options using a transparent evaluation method.
- Set contract or operational controls for selected priorities.
- Track performance and disclose trade-offs rather than claiming every initiative is win-win.
Limits of the Framework
- People, Planet and Profit do not share one natural unit of measurement.
- Improvement in one dimension can create a trade-off in another.
- A TBL statement is not a substitute for legal compliance, carbon accounting standards or human-rights due diligence.
- Metrics and boundaries must be defined to avoid vague sustainability claims.
For procurement application, see Sustainable Procurement. For environmental supply-chain actions, see Green Supply Chain Management.
Interview Question
Question: Does sustainable procurement always reduce cost?
Answer: No. Some actions reduce total cost, while others may require investment to improve environmental or social outcomes. A sound decision makes the trade-offs transparent and evaluates lifecycle value rather than assuming every sustainability action pays back immediately.
