This Reading illuminates the dynamics of companies in competition and offers a process for planning and executing marketing strategies to compete in a rapidly changing marketplace. It will also enable marketers to make decisions that account for competitors' likely responses. The Reading delineates processes for understanding the opportunities and challenges of competitive play, providing guidance for choosing contexts that enable success while avoiding those in which profitability will be elusive. It then examines how marketers can create opportunities by alleviating constraining competitive forces and by opening up new ways to compete that are more conducive to growth. The Reading concludes with insights into how consumers respond to marketplace competition and examines how companies can frame competitive games to their advantage in brand positioning and marketing communications.