Identify two specific firms that you believe operate as a duopoly or in a larger oligopoly and answer the following questions.

1. Describe the industry your firms operate in and why you believe they qualify as close to an oligopoly, or more specifically, a duopoly.
2. Is one of the firms a leader or are these two firms largely operating simultaneously?
3. How do repeated interactions factor in to these firms' pricing decisions?
4. Name at least one reason why consumers may suffer from the market power of these firms and one reason why consumers may actually benefit from the competition in which these two firms engage.
5. If applicable, have these two firms ever been accused of collusion and been subject to antitrust scrutiny? If so, what?

Please cite any reference where appropriate. No specific format is required--website, author, title, year is good enough.