Discuss the ramifications involved in conducting business under economies of scale and diseconomies of scale. You may use exs of firms that rely on economies of scale (auto manufacturers for ex) and what this implies for competition. Can other firms easily enter this market? You can also tie this concept back to the recent mergers between banks given our financial situation. What does this imply for customers of these banks? What about the situation with concert promoters and ticket sales? You can take this problem in any direction you like, but focus on why firm size matters.