相继产业链条件下的内生纵向一体化研究

在由多个上游和下游企业组成的相继产业链中,上下游厂商通过纵向一体化可降低产品价格,增加利润及社会福利.但当企业数目较少时,双重边际效应使得价格增加,同时一体化厂商会提高非一体化厂商成本,形成价格歧视、甚至市场封闭等问题.本文给出一体化厂商与非一体化厂商共存的内生解,并给双重边际、价格歧视和市场封闭的解决途径.

Endogenous Vertical Integration of Successive Oligopolists

Within successive oligopoly chains,vertical integration can decrease the price of good and increase firm's profit and the consumer's surplus and the social welfare.While the number of firms is limited,the effect of double marginalization inversely increases the price of good and raises the un-integration rival's cost.This paper studies endogenous answers of coexist of integration firms and un-integration,also explores means to effectively eliminate double marginalization,market foreclosure and price discrimination issues.While upstream firm is nature monopoly,regulation of price is very important to maintain faire competition of whole industrial chains.