Identify an example of each of the four basic market models (perfect competition, monopolistic competition, oligopoly and monopoly). After you've done that, identify a company or industry that you're familiar with. It could be a company you've worked for, a company you want to work for, or one that you follow for some reason. Which of the four market models applies to that company? Explain your reasoning for why you believe that company fits the particular market model you've identified.