Which of the following is NOT one of Porter's 5 forces?

Porter's Five Forces model is a framework for analyzing the competitive environment of an industry. The core components of this model include the threat of new entrants, the threat of substitute products, the bargaining power of suppliers, the bargaining power of buyers, and the intensity of industry rivalry.

The correct answer is that the threat of corporate espionage is not one of Porter's Five Forces. Corporate espionage relates to the illicit gathering of confidential information from competing firms and is not considered a fundamental force affecting industry competition. Instead, Porter’s model focuses on the broader competitive dynamics that influence market behavior and profitability.

The other options, such as the threat of new entrants, the threat of substitute products, and the intensity of industry rivalry, are central to understanding how competitive forces shape industry landscapes and how companies can extract or maintain power and profitability in their markets.