SOLVABILITY RESULTS OF A CONDITIONAL INPUT-OUTPUT EQUATION BASED ON A TYPE OF NONLINEAR LEONTIEF MODEL

A class of nonlinear and continuous type Leontief model and its corresponding conditional input-output equation are introduced, and two basic problems under the so called positive or negative boundary assumption are presented. By approaches of nonlinear analysis some solvability results of this equation and continuous perturbation properties of the relative solution sets are obtained, and some economic significance are illustrated by the remark.

Construction of Two-Region Input-output Model——A Case Study of Henan Province

On the basis of input-output table of Henan Province and China in 2007, this paper advances a simple method of constructing two-region input-output model using MRIO model, to research the economic link between the industries of Henan Province and the industries of other regions. I summarize the characteristics of this method based on this as follows: when researching inter-regional economic link, the multi-region or two-region input-output model has prominent superiority, and we can conduct preliminary estimation on the multi-region input-output model using location quotient approach.

The Influences of Energy Price Variation on the Prices of Other Industries: A Study Based on Input-Output Price Model

Energy has laid material foundation for human society during its development. Meanwhile, any change of price in the energy industry may influence social production and people’s life at all levels via an input-output mechanism under which the change related to energy is surely transmitted to other industries. The price change thus incurred in all industries may adversely affect the realization of macroeconomic objective-maintaining prices at a stable level. It is, therefore, needed to conduct an empirical research related to the impact of price change in energy industry on that in other industries. According to the data coming from “China’s 2015 Input-Output Extension Table (42 Departments)” and four hypothetical basis, this article focuses on four energy sectors and analyzes how deeply the price change of them, by use of input-output model, affects that of other industrial products under five conditions where each of their price rises by 10% individually or simultaneously, and why such an influence occurs. The results show that the price rising of the energies in question leads to an upward growth in the prices of other industrial products, especially when their prices go up simultaneously. Besides, the price increase in the four energy sectors doesn’t influence other industries in an accumulation form but actually leads to a rollback in some of other industries. It is recommended to adopt diversified pricing strategies for different energy products, thus maximizing the value of each specific energy, and meanwhile achieving the goals of energy consumption reduction and price equilibrium.

Re-measuring Status of China＇s High-Tech Industries in International Division of Labor： Applying a Non-Competitive Input-Output Model

Based on a refined ＂non-competitive input-output model,＂ this paper proposes a new framework for analyzing the status of a country＇s high-tech industries in the international division of labor, i.e. calculates the index of＂ weighted value-added productivity ＂ by compiling non-competitive input-output tables which distinguish high-tech industries from traditional industries. The new method effectively avoids ＂statistical illusion＂ which stems from a biased focus on gross exports under intra-product specialization. The empirical study shows that since 1995, the status of China＇s high-tech industries has grown quickly as a result of enhanced labor productivity, but still lags behind those of major developed countries. In addition, the study also suggests that the status of China＇s high-tech industries has been over-estimated using the traditional gross export statistical method.

INPUT-OUTPUT MODELS OF SCIENCE AND TECHNOLOGY AND ITS APPLICATION IN EVALUATING PROGRESS OF ENTERPRISE SCIENCE AND TECHNOLOGY

The method of compiling input-output models of science and technology was studied,and the application of input-output techniques in evaluating the progress of enterprise science and technology was discussed.And the models for determining direct,indirect and full contributions of the progress of enterprise science and technology have been set up which can be used to analyse and evaluate the direct,indirect and full benefits of the progress of enterprise science and technology.

A Generalization of the Input-Output Pollution Control Model and Product Selection

The input-output pollution control model given in [1] is generalized. The generalization makes it easier for the model to handle many problem instances. A linear program is used to solve the new model. An example is given to show that the new model can handle classes of problems that the original model cannot handle.

Regional Agricultural Input-Output Model and Countermeasure for Production and Income Increase of Farmers in Southern Xinjiang,China

Agricultural input and output status in southern Xinjiang,China is introduced,such as lack of agricultural input,low level of agricultural modernization,excessive fertilizer use,serious damage of environment,shortage of water resources,tremendous pressure on ecological balance,insignificant economic and social benefits of agricultural production in southern Xinjiang,agriculture remaining a weak industry,agricultural economy as the economic subject of southern Xinjiang,and backward economic development of southern Xinjiang.Taking the Aksu area as an example,according to the input and output data in the years 2002-2007,input-output model about regional agriculture of the southern Xinjiang is established by principal component analysis.DPS software is used in the process of solving the model.Then,Eviews software is adopted to revise and test the model in order to analyze and evaluate the economic significance of the results obtained,and to make additional explanations of the relevant model.Since the agricultural economic output is seriously restricted in southern Xinjiang at present,the following countermeasures are put forward,such as adjusting the structure of agricultural land,improving the utilization ratio of land,increasing agricultural input,realizing agricultural modernization,rationally utilizing water resources,maintaining eco-environmental balance,enhancing the awareness of agricultural insurance,minimizing the risk and loss,taking the road of industrialization of characteristic agricultural products,and realizing the transfer of surplus labor force.

Application of Linear Model Predictive Control and Input-Output Linearization to Constrained Control of 3D Cable Robots

Cable robots are structurally the same as parallel robots but with the basic difference that cables can only pull the platform and cannot push it. This feature makes control of cable robots a lot more challenging compared to parallel robots. This paper introduces a controller for cable robots under force constraint. The controller is based on input-output linearization and linear model predictive control. Performance of input-output linearizing (IOL) controllers suffers due to constraints on input and output variables. This problem is successfully tackled by augmenting IOL controllers with linear model predictive controller (LMPC). The effecttiveness of the proposed method is illustrated by numerical simulation.

Integrated Water and CGE Model of the Impacts of Water Policy on the Beijing's Economy and Output

The article used general equilibrium model to analyze the change of gross domestic product and industry output affected by water resources policies in Beijing City by using GEMPACK soft tool.The article researches on rules of water supply and demand,evaluating water resources,building water resources input and output table,establishing water computable general equilibrium model and stimulating water policy.The stimulation gives a scenario that increases water price by 10%.The result shows the following aspects.First,water resources policy infects gross domestic product and industry output in different ways.There are different behaviors in different industries as to the water policy. Agriculture industry has the same tendency as water price change and it has more sensitive to water quantity than to water price.For basic energy industries such as oil and chemistry and gas,they show diversity tendency.As to some high water consumer industry such as paper and textile etc.,water resource economic policy can infect them greatly and can promote them to accomplish more water-saving technology.Waste water and construction and service industries show the same tendency as to water policy.Second,government should pay more attention to water resource policy by macro economic administration.The simulation also shows that the output and supply and consumer price change more than expect as to water policy in a free market economic in water industry.So as to a government policy maker,one should be more carefully and prepare suitable forecast and plan to water policy and its negative impact.

TECHNIQUES OF CONSTRUCTING REGIONAL INPUT-OUTPUT TABLES: ACHIEVEMENTS

The development of any analytical method should have to experience at least four stages: its initial status, growth, mature and declining. However, although the regional input-output analysis has been widely applied for more than forty years, it is still one of the most important approach in regional economic analysis and forecast at present in the world. This is due to the never ended modifications and its great potentials. In this paper, we review the historical development of the regional input-output analysis.

GREY DISPLACEMENT INPUT－OUTPUT MODELS OF MINERAL PROCESSING－METALLURGY SYSTEM

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Input-Output Analysis of the Impact of Environmental Regulation on Chinese Industries

In this paper, we attempted to calculate the impact of environmental regulation on the international competitiveness of China＇s industries. Calculations are based on the input-output model that incorporates pollution control costs. We took enterprises ＇pollution control costs as the substitute variable for environmental regulation and price changes to measure the impact on international competitiveness for all sectors. Our studies reported three findings. First, price rises caused by pollution control costs were not more than 4 per cent in the manufacturing and trade sectors in 2007. Second, although the charging rate on pollutant discharge has become increasingly higher since 2003, the resultant price rise is only around O. 5 per cent across all sectors. Third, the impact brought about by increasingly stronger environmental regulation is limited and the resultant price rise does not exceed 2 per cent. Thesefindings indicate that the impact of environmental regulation on China＇s trade sectors is affordable. Therefore, it is needless to worry that environmental regulation will weaken the international competitiveness of Chinese products.

Spatial Heterogeneity of Embedded Water Consumption from the Perspective of Virtual Water Surplus and Deficit in the Yellow River Basin,China

Virtual water trade(VWT)provides a new perspective for alleviating water crisis and has thus attracted widespread attention.However,the heterogeneity of virtual water trade inside and outside the river basin and its influencing factors remains further study.In this study,for better investigating the pattern and heterogeneity of virtual water trade inside and outside provincial regions along the Yellow River Basin in 2015 using the input-output model(MRIO),we proposed two new concepts,i.e.,virtual water surplus and virtual water deficit,and then used the Logarithmic Mean Divisia Index(LMDI)model to identify the inherent mechanism of the imbalance of virtual water trade between provincial regions along the Yellow River Basin and the other four regions in China.The results show that:1)in provincial regions along the Yellow River Basin,the less developed the economy was,the larger the contribution of the agricultural sector in virtual water trade,while the smaller the contribution of the industrial sector.2)Due to the large output of agricultural products,the upstream and midstream provincial regions of the Yellow River Basin had a virtual water surplus,with a net outflow of virtual water of 2.7×10^(8) m^(3) and 0.9×10^(8) m^(3),respectively.3)provincial regions along the Yellow River Basin were in a virtual water deficit with the rest of China,and the decisive factor was the active degree of trade with the outside.This study would be beneficial to illuminate the trade-related water use issues in provincial regions along the Yellow River Basin,which has farreaching practical signific-ance for alleviating water scarcity.

大规模风电运行的调度模式设计

大规模风电入网,是当前内蒙古电网面临的主要问题之一。研究风电负荷特性对电网调度的影响,得出全网风电极小值对电网运行影响最大的结论。分析风电功率预测在电网运行管理中的作用,提出风电预测的超短期、短期和中期预测相结合的模式,用于电网调度部门的风电运行管理,降低风电对电网的冲击。说明采用电网调峰容量接纳风电,可以大幅度降低电网接纳风电的风险;并指出应按照风电跨省、跨区接纳方式,设计适用于风电运行管理的扁平化调度模式。

考虑新能源消纳的跨省跨区发电权新型交易模式研究

针对中国西北地区新能源电能大量富余,"弃风"、"弃光"现象严重,消纳矛盾突出的现状,笔者在发电权市场交易理论的基础上,梳理出考虑新能源消纳的跨省跨区发电权交易能够实施的前提条件、双边/多边交易流程和市场交易模式,并对考虑新能源消纳的跨省跨区发电权交易机理和原则进行了分析,建立了基于煤耗量和污染物排放最小的交易收益模型。最后以甘肃和湖北两地的模拟交易为例进行计算,结果表明,考虑新能源消纳的跨省跨区发电权交易是一种新颖而有效的交易模式,在解决新能源电能富余及消纳问题方面可以发挥积极有效的作用,并对未来远距离发电权交易具有重要理论和实践意义。

地区间投入产出模型分析

地区间投入产出模型是投入产出分析领域中非常重要又非常复杂的内容,它是研究地区间经济联系和物流关系的工具,它对研究如何发挥不同地区经济优势,确定生产力合理布局,优化资源配置,特别是对当前研究西部大开发与东部和中部之关系具有重要的意义.论文对世界上已有的地区间投入产出模型进行综述,简要介绍3个较为经典的模型,说明地区间投入产出模型的发展轨迹,分析各自特点、适用情况及其差别,希望对我国的地区间投入产出分析模型发展有所帮助.

区域间投入产出模型(IRIO)的我国会展业经济影响分析

在事件活动领域,相对于体育活动,关于会展活动经济影响的研究较为薄弱。如何将与会展相关的产业和区域全部纳入其中以避免失真和漏损,是会展经济影响研究的难点之一。该研究首次运用区域间投入产出模型(IRIO),通过将波及的12个产业部门进行归并,计算了我国30个省区会展产业的区域及区域间影响力,并以广交会为案例,进行了会展间接经济影响的实证分析。研究结果显示:我国会展业对国民经济具有较强的拉动作用,而且几乎所有的省区都会产生相互间的波及效应;在总产出层面,会展产业的影响力在东部沿海和中西部地区表现出较为明显的差异性;我国会展业还有一定的发展空间。案例研究表明,第104届广交会的间接经济影响约为162.43亿元(其中广东占比最高,为35.09%),直接与间接效应之比为1:2.94;批发和零售贸易业等五个产业部门受广交会影响较大,合计占比为77%。

中国跨区域创新合作的影响因素——基于省际合作专利数据的实证分析

基于国家知识产权局专利信息服务平台中的合作专利数据,运用空间交互模型分析了影响省际间创新合作的主要因素,并比较了各因素对同组织合作和异组织合作的影响程度。结果表明:地理距离、区域发展不平衡和技术距离是影响跨区域合作的主要因素;地理距离和技术距离对同组织省际合作的影响程度均小于对异组织省际合作的影响程度;区域发展不平衡因素对同组织省际合作的影响程度高于对异组织省际合作的影响程度。结合研究结果提出了相应的政策建议。

我国会展业区域关联效应演化机理研究

运用区域间投入产出模型(IRI0),能够揭示我国会展业区域关联效应的演化特征与动力机制。研究结果显示,我国会展业经济拉动效应和产品供给效应均高于全社会平均水平;2002年~2007年,会展业区域和区域间经济拉动效应均呈下降态势,而区域和区域间产品供给效应均呈明显上升态势;我国中西部地区会展业经济拉动效应强于东部地区,但是却呈下降态势,而东部地区则呈上升势头;技术进步、区域经济发展水平、区域会展发展基础、区域经济开放程度、区域产业结构和区域产业专业化程度等是我国会展业区域关联效应形成的主要动力因素。

国内市场分割是否导致了中国区域发展不平衡

本文基于区际贸易的视角,通过建立多地区多产业的李嘉图模型首次系统研究了国内市场分割对中国区域发展不平衡的影响。本文将国内市场分割的成因区分为地方保护和运输成本,并基于模型估计出地方保护和运输距离对市场分割的影响。数值模拟分析表明,在中国区域发展不平衡的成因中,市场分割至少是和传统的资本禀赋差异、技术差异同等重要的因素,降低市场分割程度能有效解决区域发展不平衡问题。在通过降低地方保护水平促进区域发展平衡时,应注意大幅降低落后地区的地方保护程度;通过改善交通基础设施来降低运输成本也能起到促进区域发展平衡的作用。另外,缩小地区间资本禀赋和技术差异并不总是能促进区域发展平衡,在采取政策手段时,应该定位于大幅提升落后地区和中等收入地区的资本禀赋和技术水平。