Study on Market Structure and Vertical Differentiation Competition Based on Network;

The demand functions of new products and remanufactured products were formulated with social environmental consciousness,new product price and remanufactured product price based on vertical differentiation model.

Supposed there is a certain of vertical differentiation between the duopoly in Hotelling s model,we have reached a SPNE in location-price game.

This paper analyses the product differentiation strategy from two dimensions:the consumer s value and cost,and suggests the value innovation strategy based on vertical differentiation,which means that increases consumer s value by improving quality of products or services.

Based on Butters(1977)s pioneering model of informative advertising, introduced Mussa and Rosen(1978)s vertical product differentiation model, consulted Tirole(1997)s analysis of informative advertising in horizontal differentiation which is a modification of Grossman and Shapiro(1984)s model, we established an informative advertising model of duopoly in vertical differentiation.

But there are still many problems facing Chinavegetable export, which mainly is that China vegetable export products cannot wellkeep in touch with the world market demand on the aspect of product horizontaldifferentiation and vertical differentiation.

A model of vertical product differentiation with a triangular demand distribution;

In a three-stage dynamic game model based on vertical product differentiation,the article studies that enterprise s debt financing strategy imposes effect on product differentiation strategy and pricing decision under uncertainty,at the same time,we compare competition equilibrium outcomes with that under non-debt financing.

Based on a vertical product differentiation model with linear demand functions, we study the Evolutionary Stable Strategy (ESS) in a duopolistic market in which there are a high quality firm and a low quality firm.

To deal with price decision in closed-loop supply chain,based on the two-level closed-loop supply chain that is made up of single manufacturer and single retailer,price decisions of manufacturers and retailers are studied by game theory when there are vertical products differences between new products and remanufactured products.