Porter's Five Forces
A MODEL FOR INDUSTRY ANALYSIS
The model of pure competition implies that risk-adjusted rates of return should be constant across firms and industries. However, numerous economic studies have affirmed that different industries can sustain different levels of profitability; part of this difference is explained by industry structure.
Michael Porter provided a framework that models an industry as being influenced by five forces. The strategic business manager seeking to develop an edge over rival firms can use this model to better understand the industry context in which the firm operates.
Diagram of Porter's 5 Forces SUPPLIER POWER
Supplier concentration
Importance of volume to supplier
Differentiation of inputs
Impact of inputs on cost or differentiation
Switching costs of firms in the industry
Presence of substitute inputs
Threat of forward integration
Cost relative to total purchases in industry
BARRIERS
TO ENTRY
Absolute cost advantages
Proprietary learning curve
Access to inputs
Government policy
Economies of scale
Capital requirements
Brand identity
Switching costs
Access to distribution
Expected retaliation
Proprietary products THREAT OF
SUBSTITUTES
-Switching costs
-Buyer inclination to
substitute
-Price-performance
trade-off of substitutes
BUYER POWER
Bargaining leverage
Buyer volume
Buyer information
Brand identity
Price sensitivity
Threat of backward integration
Product differentiation
Buyer concentration vs. industry
Substitutes available
Buyers' incentives &n ...