This document outlines a case study of Walmart's use of public relations research to manage its corporate reputation. It describes a 7-step planning process used by Walmart: 1) Define business objectives, 2) Identify key audiences, 3) Determine audience-specific outcomes, 4) Conduct research, 5) Develop a communications strategy, 6) Implement campaign elements, and 7) Measure and revise the strategy. The document provides details of Walmart's research with various stakeholder groups including consumers, local governments, associates, suppliers, and analysts to identify drivers of Walmart's reputation with each group. It then gives examples of Walmart's media relations programs, national advertising campaigns, and other reputation management tactics developed based on the research