Main article: List of John McCain presidential campaign staff members, 2008. On July 2, 2008, Steve Schmidt was given full operational control of McCain's campaign. Schmidt had managed Arnold Schwarzenegger's 2006 re-election and was a top Dick Cheney aide.
Monopolistic competition. The model of monopolistic competition describes a common market structure in which firms have many competitors, but each one sells a slightly different product.
Monopolies are unique relative to other market structures, as it only contains one firm, and thus a monopoly firm has far more power to set prices than firms in other market structures. Because of this lack of competition, monopoly firms will make an economic profit. 2  This would normally cause other firms to enter the market. 3  For this market to remain a monopolistic one, there must be some barrier to entry.