Related and supporting industries (Porter’s Diamond)
Related and supporting industries in Porter’s Diamond concern capable suppliers and connected industries that help firms develop competitive strength. Proximity, information exchange and specialist services can support innovation and efficient coordination. The analysis asks what useful capabilities and connections exist, rather than merely listing every supplier or assuming a cluster guarantees success.
Worked example
A machinery cluster includes specialist component producers, tool makers and design services. Their expertise and feedback help equipment manufacturers solve technical problems and improve their products.
Common mistake
Treating any ordinary supplier relationship as proof of national advantage or confusing the component with only the firm’s internal support activities.
Where it appears in your exams
| Qualification | Exam | Relationship | Period |
|---|---|---|---|
| ACCA | SBL | Direct | September 2026–June 2027 |