周末 王良举 陈甬军
关键词：钢铁业 规模效应 新产业组织实证 随机前沿方法
Appropriate Size of China's Steel Enterprises：
A Comparative Analysis Based on The NEIO and SFA Methods
Mo Zhou Liangju Wang Yongjun Chen
Abstract: This paper discusses the relationship between the scale and the efficiency issues within the Chinese steel industry. We combined the standard neoclassical structure with new empirical industrial organization methods which had been developed in recent years and added the dynamic structural which allowed the variation of technological condition according to the actual data of Chinese industry. Then we estimate the scale elasticity of the industry. Subsequently, based on the Stochastic Frontier Analysis, we measure the technical efficiency of steel industry in China which verified the results from the empirical industrial organization methods. By measuring the results from the empirical works, we concluded that the traditional sense that the steel industry has the significant scale economy dose not reflect by the listed steel companies in China. On the contrary, China's steel industry reflected an obvious feature of diseconomies of scale. While the technical efficiency of firms obtained by the SFA method also indicated that there exists an negatively but not very significant correlationship between Scale of assets and the technology efficiency. Based on the two results from the methods of comparative analysis, we concluded that, there is a significant the scale elasticity, less than 1, among the Chinese steel companies and technical efficiency do not rise with the expansion of scale. This paper argues that the corporate restructuring under the government-led industrial policy in purpose of expanding the scale and improving the efficiency should be Cautious, or may results the anti-efficiency behavior.
Keywords:Steel Industry Scale Economy NEIO SFA
JEL Classification: L11 L60 D43 C23
马大明 杜晓君 宋宝全 罗猷韬
Research on Patent Thicket – Emergence and Development, Economic Effect, and Measurement
Daming Ma Xiaojun Du Baoquan Song Youtao Luo
Abstract:Serious patent thicket problem emerges in many hi-tech industries recently, which block the process of new technology enter into business. This paper relatively comprehensively analysis patent thicket problem from the three perspectives of emergence and development, economic effect, and measurement, obtained main results as blow. Firstly, explained the main reason generate patent thicket is the trend of technologic complexity; patent thicket problem is an auto reproductive and self-reinforcing system, individual rational countermeasures to the problem may result in deterioration; the propagating of patent thicket presented as many aspects. Secondly, the economic effects of patent thicket deduced from game models are that, inhibit R&D investment ex ante, amplify monopoly power of patentee ex post, and weaken market competence and injury social welfare, negatively influence market efficiency strongly there by. Thirdly, review three method of fragmental index, network density, and triple blocking to measure patent thicket, exemplify the corn algorithm, and then discuss the application of the methods in relative empirical studies. Lastly, briefly generalize the development of relative research and the Countermeasures of patent thicket problem.
Keywords: Patent Thicket Emergence and Development Economic Effect Measurement
JELClassification：D42 D45 D58
An Empirical Study of Effects of Regulatory Reform and Performance of China's Power Generation Industry Listed Companies
-----Based on Panel Data and Stochastic Frontier Analysis
Abstract:The paper selects 20 China's power generation industry listed companies during 1997-2010 and estimates effects of regulatory reform, asset-liability ratio, listed age, firm size, coal price index and corporate performance by making use of panel data and stochastic frontier. The results show that: regulatory reform is positive relation to the profit and negative relation to efficiency of China's power generation industry listed companies; asset-liability ratio is negatively related to profit and efficiency; listed age is negative relation to profits and positive relation to the efficiency; firm size is positively related to profit and efficiency; coal price index is positive relation to profit and is negative relation to the efficiency; the technical efficiency is on the rise; average technical efficiency is 0.7; the sum of output elasticity of capital and labor is less than 1; returns to scale is decreasing; the output elasticity of capital is greater than the output elasticity of labor.
Keywords:Power Generation Industry Listed Companies Performance Regulatory Reform
JEL Classification: C01 L53 M38
关键词：分工 外部性 交易成本 产业集聚
The Mechanisms of Industrial Agglomeration: A Survey
Abstract: Theories about the formation of industrial agglomeration are relatively loose but there is a connection between them. Our aim is to take further steps to make clear the context of these theories, and to sort out the logic between these different mechanisms. On this base, we point out another mechanism about the formation and evolution of industrial agglomeration. That is the process of industrial agglomeration induced form Entrepreneurs formation.
Keywords：Division of Labor Externality Transaction Costs Industrial Agglomeration
JEL Classification: R11 O18 D20
关键词：国际生产网络 发展中国家 价值链 产业升级
International Production Networks and the Reconstruction of Value Chain in Developing Countries Under the Conditions of Economic Globalization
Mingliang Zhao Huixin Yang
Abstract: International division of labor become further refinement under the conditions of economic globalization. Intra-product specialization becoming popular, international production networks take shape.While there is a hierarchy relationship existing in the division of production value chain. Developing countries undertake low value-added stages production,that restrict the development of national economy and industry. Developing countries should take the measures of extension to the two ends of the value chain, reconstruction of a new value chain to promote domestic industrial upgrading.
Keywords: International Production Networks Developing Countries Value Chain Industrial Upgrading
JEL Classification: F14 F15
关键词：软预算约束 信息不对称 动态承诺 成本分离
The Cause and Nature of Soft Budget Constraint: A Survey and Comment
Zuoshi Xie Shanjie Li
Abstract: This thesis develops an improved adverse selection model which explains the causes and properties of the soft budget constraint, and enables the diversified explanations conducted either from the angle of the time inconsistency of commitment under the soft budget constraint, or from public ownership, or from other angles concerned with the previous two, to converge into a unanimous understanding in a more general sense. Based on the analysis of the model, this thesis works out the following policy propositions: (1) Ownership shall be privatized and defined to individuals as clarified as possible, transaction cost in the operation of private-based economy shall be lowered in the mean time with no efforts spared, and price mechanism shall be brought into full play. (2) In those innumerous public organizations and realms which have to exist, political rights shall be divided, negotiation costs concerned with how to use public assets shall be increased, and government interference shall be decreased as much as possible.
Keywords: Soft Budget Constraint Information Asymmetry Dynamic Commitment Cost Separation
JEL Classification: A10 D01 P20
摘 要: 供水TOT项目特许经营权拍卖的核心问题是如何设计最优的拍卖机制，激励企业以真实信息参与竞拍，并选择最有效率的企业获取特许经营权。在充分考虑激励相容约束和参与约束的基础上，本文运用激励理论和机制设计理论，构建包含质量属性和特许经营权拍卖价格的拍卖机制模型，通过求解得到实现社会福利最大化目标的最优机制。同时鉴于最优机制在实际运用中的复杂性，本文进一步探讨了该机制的实施方式。
关键词: 供水 TOT 特许经营权 多维拍卖 激励机制
Research on the Mechanism for Franchise Auction in Supply Water TOT Projects
Abstract：The core problem of franchise auction in supply water TOT project is how to design the optimal auction mechanism to inspire enterprises to participate in the auctions with the true information, and choose the most efficiency enterprise to get the franchise. After the full consideration on incentive compatible constraint and participate constraints, the model of auction mechanism containing quality attributes and the franchise auction prices is established based on the incentive theory and mechanism design theory ,which is to maximize the expected social welfare and obtain the optimal auction mechanism by solving the model. Furth more, in view of the complexity of the optimal mechanism in the practical application, the paper further discusses the implementation of the mechanism.
Keywords：Supply Water TOT Franchise Multi-Attribute Auction Incentive Mechanism
JEL Classification: C02 C72 L43
关键词：市场势力 食品零售业 竞争分析
China Urban Food Retailing Industry Competition
Ruida Wang Laping Wu
Abstract: This paper analyzes the market power of the food retailing industry to understand the food market competition situation. By applicating NEIO method and econometric model of corporate benefit maximization, market power is measured. The parameter on behalf of the degree of competition is estimated to measure the urban food retailing market competition. As NEIO method is mainly used in industries with homogeneous products, this paper attempts to analyse the retailing food industry which manages multi-species , by computing the panel data, the conclution is got that the China urban food retailing market is in the normal competitive status.
Keywords:Market Power Food Retailing Industry Competition Analysis
JEL Classification: C33 D42 L81
牛勇平 辛波 杨海山
关键词： 公共产品供给 因子分析 相对公平政策
An Empirical Analysis on the difference of Rural Public Goods Supply Level of Each Region in China
Yongping Niu Bo Xin Tengyun Sun
Abstract：The paper constructs a comprehensive index system to make factor analysis on the level of rural public goods supply of each region in China and extracts three common factors which are income factor，production factor and policy factor. The results of factor analysis show that there are significant differences of the level of rural public goods supply among each region and there appears the gradient decreasing pattern in accordance with the order of the eastern, the central and the west. In order to change the situation, we may take the relative fairness policy in the rural public goods supply and introduce multiple investors, explore a new way of rural public goods supply which is consistent with our national conditions.
Keywords：Public Goods Supply Factor Analysis Relative Fairness Policy
JEL Classification： Q18 H41 C15