Force three

Supplier bargaining power

Supplier power concerns the ability of input providers to raise prices, reduce service or impose terms on the firms they supply.

Start with the input map

List the inputs required to create and deliver the product: materials, labour, energy, software, finance, logistics, data and specialist services. Then identify where alternatives exist. A supplier’s power depends less on being large in the abstract than on being difficult to replace for this particular buyer and use.

Supplier concentration is one signal. If many buyers depend on a small number of providers, those providers may have leverage. The reverse is not automatically safe: a fragmented supplier base can still be powerful when an input is scarce, regulated or technically specialised.

Look for switching friction

Does changing supplier require new equipment, testing or approval?
Would a change interrupt production or damage service quality?
Are specifications, data or interfaces proprietary?
Can the supplier sell directly to the buyer’s customers?
Does the supplier have a credible alternative customer base?

Uniqueness matters more than size

A small specialist provider can have more leverage than a large commodity producer if its capability is hard to duplicate. In aerospace, for instance, qualification and reliability requirements can make replacement slow. In software, integration and data migration can create dependence even where competing products exist. These are structural observations; they still need evidence from the market being studied.

Consider the buyer’s options

Countervailing power can limit supplier leverage. A large buyer may offer volume, develop a second source, standardise specifications or bring an activity in-house. Yet scale is not enough if the buyer is strategically unimportant to the supplier, or if the supplier can redirect capacity elsewhere. Compare the value and urgency of each relationship.

Vertical integration is not a free escape

Making an input internally may reduce dependence, but it adds investment, management complexity and exposure to activities outside the firm’s strengths. The relevant comparison is not supplier price versus internal cost alone. Include quality, resilience, lead time, learning and the opportunity cost of capital.

Field note: ask, “What happens if this supplier says no?” The answer reveals dependence more clearly than a generic supplier count.

Translate the force into action

Responses can include multiple sources, longer planning horizons, alternative specifications, shared standards, contractual protections or selective integration. None removes the force permanently. A change in technology, regulation or demand can alter supplier leverage, so record the condition that supports your conclusion.