Porter’s Five Forces is a model of analysis that helps to explain why different industries are able to sustain different levels of profitability. This model was originally published in Porter’s book, “Competitive Strategy: Techniques for Analyzing Industries and Competitors” in 1980. The model is widely used, worldwide, to analyze the industry structure of a company as well as its corporate strategy. Porter identified five undeniable forces that play a part in shaping every market and industry in the world. The forces are frequently used to measure competition intensity, attractiveness, and profitability of an industry or market.

1. Threat of New Entrants:
   • The importance of this force is the number of competitors and their ability to threaten a company. The larger the number of competitors, along with the number of equivalent products and services they offer, dictates the power of a company. Suppliers and buyers seek out a company’s competition if they are unable to receive a suitable deal.
2. Potential of New Entrants into an Industry:
   • A company’s power is also affected by the force of new entrants into its market. The less money and time it costs for a competitor to enter a company’s market and be an effective competitor, the more a company’s position may be significantly weakened.
3. Power of Suppliers:
   • This force addresses how easily suppliers can drive up the price of goods and services. It is affected by the number of suppliers of key aspects of a good or service, how unique these aspects are, and how much it would cost a company to switch from one supplier to another. The fewer the number of suppliers, and the more a company depends upon a supplier, the more power a supplier holds.
4. Power of Customers:
   • This specifically deals with the ability customers have to drive prices down. It is affected by how many buyers, or customers, a company has, how significant each customer is, and how much it would cost a customer to switch from one company to another. The smaller and more powerful a client base, the more power it holds.
5. Threat of Substitutes:
   • Competitor substitutions that can be used in place of a company’s products or services pose a threat. For example, if customers rely on a company to provide a tool or service that can be substituted with another tool or service or by performing the task manually, and this substitution is fairly easy and of low cost, a company’s power can be weakened.