可竞争市场上的进入壁垒——非经济垄断的理论和实证分析

发布时间：2018-01-13 07:06

本文关键词：可竞争市场上的进入壁垒——非经济垄断的理论和实证分析　出处：《中国工业经济》2014年04期 　论文类型：期刊论文

【摘要】：本文把垄断和竞争放在统一的理论框架内分析,因而能够发现中国大量存在的垄断与竞争交织的市场结构,能够发现在可竞争市场上也存在着局部垄断,存在着许多不公平竞争,这些行为表现为系统的偏离均衡的结果。本文通过企业成本模型,区分和厘清了垄断的不同性质,从理论上界定了非经济垄断的范畴,并提出相应的假设;然后,采用中国1998—2008年部分企业数据,选择了六个同质性较高的行业,通过对成本函数和勒纳指数的测定,以及对成本曲线的拟合与比较,检验这种性质的垄断是否存在。实证分析结果证实并表明这种非经济垄断长期和稳定地存在于不同所有制的企业之间。这种垄断与公平竞争的市场经济是完全相悖的,它保护了低效率的长期存在,不仅导致社会资源错配引起的社会效率和福利的损失,而且导致公平的损失是存在大量腐败现象的根源。由此,本文提出:调整目前产业法规及政策细则,打破非经济垄断和促进合理竞争,消除市场的进入壁垒与退出壁垒。
[Abstract]:This paper analyzes the monopoly and competition in a unified theoretical framework, so that we can find a large number of monopoly and competition intertwined market structure in China, can also find that there is a local monopoly in the competitive market. There are a lot of unfair competition, these behaviors are the result of systematic deviation equilibrium. Through the enterprise cost model, this paper distinguishes and clarifies the different properties of monopoly, and theoretically defines the category of non-economic monopoly. And put forward the corresponding hypothesis; Then, by using the data of some Chinese enterprises from 1998 to 2008, six industries with high homogeneity were selected, and the cost function and Lerner index were measured, as well as the fitting and comparison of the cost curve. The results of empirical analysis confirm and show that this kind of non-economic monopoly exists between enterprises of different ownership for a long time. This kind of monopoly is completely related to the fair competition market economy. Contrary. It protects the long-term existence of low efficiency, not only leads to the loss of social efficiency and welfare caused by mismatch of social resources, but also leads to the loss of equity is the root of a large number of corruption. This paper proposes to adjust the current industrial laws and regulations, break the non-economic monopoly and promote reasonable competition, and eliminate the barriers to entry and exit of the market.
【作者单位】：中国社会科学院经济研究所;四川大学经济学院;
【基金】：国家自然科学基金面上项目“寻找企业边界的均衡点:规模与效率”(批准号71172225);国家自然科学基金面上项目“沿海制造企业内迁决策——基于区域的企业成本效率动态比较研究”(批准号71171137)
【分类号】：F124
【正文快照】： 一、问题提出垄断是最有歧义的经济学范畴之一,通常人们对这个概念存在着很大混乱。一般来说,垄断行业似乎比较容易界定,即存在行业进入壁垒,导致该行业只有一家或极少几家企业独占市场,其他企业都不能进人。然而,在可竞争市场上,是否存在垄断企业,往往比较复杂,需要为此搜集

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