Industry structure analysis (Porter's five forces)

Meaning of industry structure analysis

An industry is a group of firms producing products that are close substitutes for one another, such as the cement industry or the airline industry. Industry structure refers to the economic and competitive features of the industry: the number and size of firms, the ease of entry, the power of buyers and suppliers, and the availability of substitutes. Industry structure analysis studies these features to judge how intense competition is and, therefore, how attractive (profitable) the industry is in the long run, and where a firm can position itself. It forms part of the firm's meso (intermediate) environment. The best-known framework is Michael E. Porter's five forces model.

Porter's five forces

1. Threat of new entrants. New firms add capacity and compete for share, pushing prices down. The threat is low when entry barriers are high: economies of scale, large capital needs, strong brands and customer loyalty, access to distribution, government licences, patents and switching costs.
2. Bargaining power of suppliers. Powerful suppliers raise input prices or cut quality. Their power is high when they are few, their input is unique or critical, there are no substitutes, or they can integrate forward.
3. Bargaining power of buyers. Strong buyers force prices down or demand more quality and service. Their power is high when they are few or buy in large volumes, products are standard, switching costs are low, or buyers can make the product themselves.
4. Threat of substitute products. Products from other industries that meet the same need cap the prices an industry can charge: video calls for business travel, for example. The threat is high when substitutes are cheaper or better and switching is easy.
5. Rivalry among existing competitors. Price wars, advertising battles and new launches reduce profits. Rivalry is intense when competitors are many and equal in size, industry growth is slow, fixed costs are high, products are similar, and exit barriers are high.

The stronger these forces, the lower the industry's profit potential; the weaker they are, the more attractive the industry.

Using the analysis

• To decide whether to enter or leave an industry.
• To find a position where the forces are weakest: a niche, a differentiated product or a cost advantage.
• To influence the forces: building brand loyalty raises entry barriers; long-term contracts or backward integration reduce supplier power; adding services reduces buyers' ability to switch.
• To anticipate change, since technology and regulation shift the forces over time.

Example (illustrative). Picture a domestic passenger airline. Its customers compare fares in seconds online; the few firms that lease aircraft and supply fuel can dictate terms; rivals with high fixed costs cut fares to fill seats; trains and video calls offer substitutes; and a newcomer needs heavy capital and airport slots, though leasing aircraft lowers that barrier. Where most of the five forces are this strong, profits across the industry tend to be thin.

Conclusion

Industry structure analysis shows that profitability depends not only on a firm's own efficiency but on the forces shaping its industry. It is the starting point for choosing a business-level strategy.