Mixed oligopoly, foreign penetration and China's environmental policy: a research based on mixed oligopoly model

This paper analyzes how the foreign penetration affects China's environment policy in a mixed oligopoly framework, and gets several interesting conclusions. First, our result shows that government should strengthen the degree of environmental policy along with increasing proportion of domestic ownership of multinational firms. Second, we show that an increase in domestic ownership of multinational firms raises not only domestic private firms' profit but also public firm's profit as well as social welfare. Third, the government will raise the environmental tax to control environmental damage.

Mixed oligopoly,foreign penetration,and environmental taxes

This paper examines the impact of foreign penetration on the public firm in a mixed oligopolistic market. Through the establishment of a mixed double oligopoly market, this paper analyzes how the share of foreign investment affects the environmental policy, the pollutant emission, and the social welfare under the condition of the state tax. The results show that: first, the introduction of foreign investment has some crowding-out effects on the social level of output. Second, the entry of foreign investment increases the profit of the public firm by a large margin, and the maximum profit of the private firm has been reduced. Third, the increase of foreign investment in public firm does not necessarily improve the environment.

A Model of Endogenous Cross-Holdings in Oligopoly

A network approach is proposed to analyze the formation of cross-holdings and anti-competitive implications. Our approach is motivated by the bilateral ar- rangement of passive ownership between Microsoft and Apple in 1997. We provide a complete characterization of pairwise stable cross-holdings for a model of Cournot oligopoly with a homogeneous product. Our results strengthen the competitive impli- cations of endogenous cross-holdings in Cournot oligopoly found in the literature.

A Differential Oligopoly Game Under Price Competition

A dynamic actual demand function was used to portray a market environment for fast moving consumer goods and to establish oligopoly differential games under price competition. We confirmed the stable point in n-player price competition as the saddle point of differential games, and acquired the optimal price and demand at equilibrium. Analysis on optimal price and demand shows that, to obtain more profits, a manufacturer should control costs, rapidly occupy the market, and improve product uniqueness.

A Model of Competition with Environmental Taxes and Regulation Under Conditions of Oligopoly

The Cournot static game with complete information is reviewed. A model of competition with environmental taxes under conditions of oligopoly is built based on the Cournot game, and some helpful conclusions are drawn from the model. A game model with regulation of government is also established. Finally the optimization problem of market structure is discussed.

Mixed oligopoly,state-owned banks’shareholding reform and foreign capital penetration

This paper examines the impact of the policy on eliminating the ratio of foreign shareholding in banks in a mixed oligopoly model.Its analytic results show that state-owned banks should encourage privatisation along with an increasing proportion of the domestic share in multinational banks.Furthermore,we argue that the increase in domestic stockholding of multinational banks raises domestic private firms’profits but decreases their social welfare in the deposit market.The results of numerical simulation show that when the quantity of private banks is fixed,foreign banks tend to enlarge their stake and strengthen their controlling power.

A Game Theoretic Approach for Hierarchical Caching Resource Sharing in 5G Networks with Virtualization

Caching and virtualization have been considered as the promising techniques in 5G Networks. In 5G networks with virtualization, the caching resources deployed by infrastructure providers (InPs) can be abstracted into isolated slices and transparently shared by mobile virtual network operators (MVNOs). In this case, one of the most important issues is how the MVNOs to share the caching resource. To solve this issue, different from previous works, a hierarchical caching architecture that core network and radio access network (RAN) have the caching capability in 5G networks with virtualization is first considered in this paper. Then, we study the problem of hierarchical caching resource sharing for MVNOs, and a competitive game to maximize their expectation revenue based on the oligopoly market model is formulated. As it is a hard problem to find the optimal solution in the hierarchical caching resource sharing problem, we decompose the optimization problem into two independent caching resource sharing problems in RAN and core network, respectively. Then the local optimal solutions are solved and the global Nash equilibrium solution is achieved. Finally, simulation results are illustrated to demonstrate the performance of the proposed scheme.

ON ADVANTAGE-COMPLEMENTARY MERGER:INCENTIVES AND RESULTS

This paper studied the change of the firm’s profit and social welfare after merger in the case of oligopoly and inhomogeneous products. By the hypothesis of an uncooperative perfect information static game model, the characteristics of market and products needed for the firm to improve its profit through merger were discussed under Cournot oligopoly model and Bertrand oligopoly model. To raise the firm’s profit can be well described as the incentive of advantage complementary merger. The change of social welfare influenced by the merger was also discussed. From the view of maximizing global social welfare, some advice was also given to regulate this type of merger.

Exploration of OPEC and oil world market

In this article, the author will analyze the phenomena of soaring oil price today, how it happened, and find the reasons for the creation of OPEC, how it conducted its affairs in the market, and the economic factors that influenced Dr. Yamani in managing the organization effectively for a fairly long period of time to attain by the goals set out by him. I will apply the economic theories of market models, substitutability of products, the concept of price leadership etc. to explain the situation in the oil market and OPEC＇s function, which also illustrates current market behavior in the business world.

The Study of the Market Economy Problem by the Method of Econophysics

The article considers the econophysical analysis of the relationship between monopoly and competition by using the methods, terms of physics. And it was investigated the philosophy of progress. It has been shown that in the transition from absolute monopoly to imperfect monopoly, the system becomes more complex, and its output characteristics depend on time, because monopoly is a natural, competitive is derivative process. Competition is created as a result of the interaction of at least two ~monopoly firms＂ through the ~market field＂ that they create to increase the production which is necessary of non-linear products over time. To do this, it is sufficient to have a multitude of firms interacting with each other under the influence force of ~market field＂. To create the necessary conditions, it is sufficient to have a high level of university education and a legal field for competition and unbreakable antitrust legislation. By acquiring technology and creating conditions for competition in the market, it is possible to achieve progress even without having a strong science. The term ~progress＂ has received a new content and is defined as the value of a numerically equal increase in the rate of production per unit time or production per squared time. It has been shown that the relationship between monopoly and competition is very simple and there is no contradiction between them. Initially, the market is born as a monopoly, and then analogical firms were created, competition between firms begins

Market Analysis to the Steel Industry: Evidence from Egypt

This case study is guidance for the market forces in one of the important industries.This study is prepared to analyze the market forces affecting the flat steel industry during the period from 2013 to 2017 in Egypt.The steel market in Egypt is a very wide market with many companies and a wide variety of products.The study will provide insight on the supply,demand,and elasticity of flat steel produced by Al-Ezz Dekheila Steel Company which is one of the biggest producers of flat steel in the Middle East.Finally insight for this industry for the future business opportunities.

Static Aspect of Heterogeneous Competition in Duopoly

The study gives a comparison between price policy and quantity policy in duopoly producing differentiated goods with different production costs and indicates which is more beneficial. Further, it is investigated that in a non-linear duopoly with differentiated goods and two different policies, firms may earn more profit if they choose a quantity policy in a stable economy when the marginal production cost of both the firms is the same. If the production cost of both firms is different, then the price policy is better only when the firm is efficient.

Caching resource sharing in radio access networks： a game theoretic approach

Deployment of caching in wireless networks has been considered an effective method to cope with the challenge brought on by the explosive wireless traffic. Although some research has been conducted on caching in cellular networks, most of the previous works have focused on performance optimization for content caching. To the best of our knowledge, the problem of caching resource sharing for multiple service provider servers （SPSs） has been largely ignored. In this paper, by assuming that the caching capability is deployed in the base station of a radio access network, we consider the problem of caching resource sharing for multiple SPSs competing for the caching space. We formulate this problem as an oligopoly market model and use a dynamic non-cooperative game to obtain the optimal amount of caching space needed by the SPSs. In the dynamic game, the SPSs gradually and iteratively adjust their strategies based on their previous strategies and the information given by the base station. Then through rigorous mathematical analysis, the Nash equilibrium and stability condition of the dynamic game are proven. Finally, simulation results are presented to show the performance of the proposed dynamic caching resource allocation scheme.

Kreps&Scheinkman with Product Differentiation

Kreps and Scheinkman (1983)'s celebrated result is that in a two-stage model of a market with homogeneous products in which firms noncooperatively pick capacities in the first stage and set prices in the second stage, the equilibrium outcome is that of a one-shot Cournot game. This note derives capacity best response functions for the first stage and extends the Kreps and Scheinkman result to the case of differentiated products.

A Theory of Mergers and Merger Waves

Abstract We consider a sequential merger game between Cournot firms with ho- mogeneous product and quadratic cost. A large slope of the marginal cost function or a small slope of inverse market demand are both predicted to increase the incentive to merge. The profitability of any merger increases with the number of mergers hav- ing already taken place. Thus, mergers tend to occur in waves in industries that have experienced exogenous shocks affecting firms＇ cost or demand. We also show some mergers that are not profitable for merged firms in the short-run may take place in the early stage of a wave.

Optimal privatisation,and optimum-welfare and maximum-revenue tariffs

We examine the effect of privatisation on the priority of the maximum-revenue tariff and the optimum-welfare tariff in an international mixed oligopoly with foreign competition and optimal privatisation.We demonstrate that when the marginal cost of the domestic privatised firm is high enough,the optimumwelfare tariff will exceed the maximum-revenue tariff.Moreover,due to the higher tariff rate that leads to the high degree of privatisation,the optimum-welfare tariff generates greater optimal privatisation than the maximum-revenue tariff does.Lastly,when the gap between the number of domestic private firms and that of their foreign counterparts becomes larger,the optimum-welfare tariff will exceed the maximum-revenue tariff.