Suppose that you are an officer of your campus theatre club. You are at a meeting called to discuss ticket prices. One member says, "What I hate to see most of all is empt seats in the theatre. We sell out every weekend performance; however there are always empty seats on Wednesdays. If we cut our Wednesday night prices by enough to fill up the theater we'd bring in more money." Would this tactic really bring in more revenue? What would you require to know in order to be sure?