Research On Market Structure Of Telecom Industry And Its Evolution In Market Conditions

With the constant deepening of China's economic reform and the continuous development of the national economy, China's telecom industry has also continued the development and strengthening and its value shared of the national GDP is also growing, at the end of 2008 China's phone users reached 982 million and Internet users reached 298 million. Although in recent years, China's telecommunications industry in general rapidly developing, but its internal development has been uneven: before the reorganization of the telecommunications industry in 2008, China Mobile company is an overwhelming majority, its market share continued to rise, China Telecom and China Unicom, China Netcom's market share the gradual convergence, China Railcom and China Satcom's market share is almost negligible, the competitition of telecommunications industry reducing, levels of monopoly rising and market structure loss its balance. After telecom industry reorganization, the newly established three major telecom companies are also asymmetrical in technology, assets, users, etc., but the competition has improved compared to before the reorganization, oligopoly situation initially formed in the fixed-line telephone, mobile phone, the Internet and other telecommunications services.In this paper, on the basis of empirical anglicizing the reform process of China's telecom industry, for the oligopolistic competitive telecommunications market, telecommunications oligopoly price adjustment and its market structure evolution is described the model and numerical simulation analysis respectively under the linear demand, the incompletely demand information and the stochastic demand information using of dynamic adjustment, incomplete information game, differential game, time-delay feedback chaos control methods, analysis conclusion provides theoretical support for the pricing strategies of oligopolistic telecommunications enterprise in the market-oriented operating environment and the evolution dynamics of mobile telecommunications industry market structure, specifically, the main research contents are as follows:The second chapter base on full investigation of China's telecom industry reform and development process, barriers to advance and retreat of the telecom industry, differentiation of products, market concentration are analyzed and empirical estimates, analysis showed that:1) barriers to advance and retreat of the telecommunications industry is very high, the mainly because government franchise, the higher sunk costs and the higher technological demands etc.; However, with the deepening of market reforms and restructuring among telecommunications enterprises, barriers to advance and retreat of the market is gradually reduced and resulting in the formation of an oligopoly market structure.2) Alternative is between the different telecom products, the same telecommunications products was not significantly different.3) The policy-oriented restructuring of the telecommunications industry reduce the degree of monopoly, but the telecommunications company's strategic market behavior exacerbated the its degree of monopoly in some extent. On this basis, anglicizing the factors of affect the market structure, analysis shows that:without taking into account policy and technical factors, pricing strategies of oligopolistic enterprises is one of the important factors affecting market structure of the telecommunications industry, with the deepening of market-oriented reform of the telecommunications industry, this impact will grow.The third chapter constructs telecommunications companies oligopoly price competition Bertrand model under the linear demand, on the basis this, built the oligopoly telecommunication enterprises prices dynamic adjustment model, anglicizing the process of Nash equilibrium, bifurcation and chaotic of prices dynamic adjustment model, through anglicizing the average profit of the oligopoly telecommunication enterprises price adjustment process, it is showed that:the average profit of telecommunications enterprises is most at the Nash equilibrium, thus keeping Nash equilibrium is important, so anglicizing the chaotic process and useing time-delay feedback chaos control methods to control chaos, in order to restore its Nash equilibrium, and enhance the enterprise's own profit that reduced in the process of the chaos; by analyzing the alternative coefficient impact on the enterprise's pricing policies, we can see the profits of telecommunications enterprises can be improve by improve the product substitutability form their own products to competitors'. The process of the telecom industry market structure evolution is analyses at the end.On the basis of the third chapter, the fourth chapter considers the incompletely demand information, via. demand the introduction of noise items, and analyses oligopoly telecommunications companies price adjustment dynamic process and the average earnings of telecommunications companies at the process of Nash equilibrium, bifurcation and chaotic, considering separately the demand noise obey uniform distribution and normal distribution case; On this basis, anglicizing of the demand noise items and the risk coefficient impact to the pricing strategy, analysis showed that reducing the demand noise items and the risk coefficient can effectively prevent the company's products lower prices in order to prevent companies to reduce their own profits; by anglicizing the evolution process of telecommunications industry market structure showed that enterprise If you want to occupy a larger market share, will strive to maintain their price adjustments equilibrium, but hopes to rival the price adjustment rate.Chapter V characterize oligopolistic telecom enterprises price competition process as a differential game model, and build oligopoly telecom companies dynamic optimization model from the profits and utility function of decision-makers different target respectively, and then expand the model to quadratic cost function and numerical simulation, analysis shows that:1) corporate decision-making objectives impacts obviously market share:when the income maximum is the enterprise'price target, level of market dominance will be reduced; and when the profit is the decision-making target, levels of monopolization of the market will increased:2) To reduce the degree of market dominance, increasing the enterprise product differentiation is an important way.Overall, this paper combination game theory modeling with empirical research methods, study the oligopolistic telecommunications companies price adjustment strategy and the evolution dynamics of market structure, provide basis for decision making and initiatives for the reform of the telecommunications industry. The results have some theoretical value and actual significance for the healthy development of market-oriented operations of China's telecom industry.