【文章內(nèi)容簡介】
state is so low. It divide people involved in this issue to 4 groups, according to the definition of interest groups:those are monopolists, consumers, nonmonopolists, and regulators。Secondly, the paper analyses targets, members and political activities for every single groups using methodological individualism:monopolist group is quite small, though its members are very large which have little divergence and have good relationship with regulators, and as a result, it has special political status。 consumer group is very large, but its members are scattered, the incentive for each individual to make political effort is serious deficiency。 nonmonopolist group’s influence is weak for its each member has great divergence, and it could be divided to some small groups easily, it’s difficult for these members of this group to form an unified action。 the regulation group has the target to cut off the high ine of monopoly industries, but in certain period undistinction between governments and enterprises still exists, governors always take sides to monopolist for their own interests. All in all, the paper points out that the wide gap between the strength of consumers and monopolists enhance the monopolists’power to pricing their products or services, and the indifference of nonmonopolists, the ambiguous of regulators all lead to the results for monopolist gaining high monopoly profits and sustaining high , based o