Porter's Five Forces model, developed by Michael E. Porter in 1980, is a tool for analyzing industry structure and competitive forces that shape the profitability and attractiveness of an industry. The model encompasses five forces: the bargaining power of suppliers, the bargaining power of customers, the threat of new entrants, the threat of substitutes, and competitive rivalry among existing players. Organizations can use this analysis to inform their corporate strategies and influence the industry dynamics in their favor.