This document discusses contestable markets and provides examples of industries with varying degrees of contestability. It defines a contestable market as one where entry and exit decisions can be made without cost. Key factors that determine contestability include the absence of sunk costs, access to technology, consumer loyalty, and size of entry barriers. Various industries like movies on demand, retail coffee stores, and budget hotels are assessed as having high contestability, while industries like household mail services currently have low contestability but this may be rising. The document also examines pricing strategies in highly contestable markets and discusses concepts like hit-and-run entry and barriers to exit.