Named after Michael E. Porter, this model identifies and analyzes 5 competitive forces that shape every industry, and helps determine an industry's weaknesses and strengths.

1. Competition in the industry
2. Potential of new entrants into industry
3. Power of suppliers
4. Power of customers
5. Threat of substitute products

 

Investopedia explains Porter's 5 Forces
Frequently used to identify an industry's structure in order to determine corporate strategy, Porter's model can be applied to any segment of the economy to search for profitability and attractiveness.