Buyer power shapes the competitive structure of an industry as it affects the competitive environment for the seller and influences the seller's ability to achieve profitability. 

The bargaining power of the supplier shapes the competitive landscape of an industry and helps determine the attractiveness of an industry.

The availability of a substitution threat effects the profitability of an industry as consumers are able to choose close substitute products. 

The threat of the new entrants affects the competitive environment for the existing competitors and influences the ability of existing firms to achieve profitability.

The competitive rivalry refers to the extent where firms within an industry put pressure on one another and limit each other's profit potential.