Market structure and product diversity a case study of Chinese media industry

When we cast our eyes on Chinese media industry, we can see that media industry cannot produce large revenue, which can be produced in developed country. At the same time, we also can see that the theoretical study and research for media market are not enough in China. All the years, scholars use theory of public management to analyze media industry. Seldom of them treat it as a normal industry and use economic theory to analyze it. In fact, it is in possession of same character as other industries. So I want to introduce Hotel ling model and Salop classic industrial model to analyze Chinese media industry and then build an empirical model. The empirical results show that these factors have asymmetrical effect on each other: Industry revenue per show, Number of art troupes and Average number of audience per show are positively related to diversity of art performance show, but average industry wage per show is negative associated with diversity. Constant is obviously positive, which means the policy of "loosen" is the most effective factor leading the product of diversity.