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Research on the Digital Transformation of the Whole Industry Chain of Guangdong Supply and Marketing Cooperative
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作者 Siting Lian Wei Zhang 《Proceedings of Business and Economic Studies》 2024年第1期76-82,共7页
Guangdong Supply and Marketing Cooperative serves as an important institution for the“Three Rural Areas”in the Guangdong-Hong Kong-Macao Greater Bay Area.Its digital transformation and optimization serve as powerful... Guangdong Supply and Marketing Cooperative serves as an important institution for the“Three Rural Areas”in the Guangdong-Hong Kong-Macao Greater Bay Area.Its digital transformation and optimization serve as powerful supports for rural revitalization.This paper systematically reviews the main practices and effectiveness of the digital transformation within the Guangdong Supply and Marketing Cooperative.It also analyzes the current development dilemmas faced in the construction of digital supply and marketing.Additionally,it proposes targeted solutions,including building a big data resource base,optimizing the digital supply and marketing cloud platform,developing digital publictype agricultural social service applications,establishing a new model of rural e-commerce,enhancing the traceability management system for agricultural products,and strengthening the construction of the digital human resources system.These proposals aim to further promote the strategy for revitalizing the countryside. 展开更多
关键词 Guangdong supply and marketing cooperative Digital transformation Whole industry chain Rural revitalization
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Index system for assessing ecological stability of circular economy industrial chain of electronic industry and its empirical study
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作者 LIU Gao-chang 《Ecological Economy》 2010年第1期58-67,共10页
With the development of science and technology and the rapid growth of productive forees new and high technology industries have. For example, computer, mobile phone, etc. are increasingly popular, especially hi-tech ... With the development of science and technology and the rapid growth of productive forees new and high technology industries have. For example, computer, mobile phone, etc. are increasingly popular, especially hi-tech products updating more and more quickly, which has initiated some problems: resources depletion, environmental pollution, ecosystems damage, etc. While people are enjoying convenient and comfortable life from hi-tech, they are worrying about quantities of e-wastes discharged.In order to reduce the amount and harm of e-wastes, this paper starts from the connotation of the ecological stability of circular economy electronics industry chain (CEEIC, for shorO, uses the food chain principle for reference to describe the links and connection of the electronics industry chain, and selects factors from the three link: production, consumption and recycle to construct indexes system based on their characteristics, with which a scientific evaluation is carried on for CEEIC by using fuzzy comprehensive evaluation. 展开更多
关键词 Electronics industry Circular economy industry chain Ecological stability Fuzzy Comprehensive evaluation
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Risk Assessment Index System of Natural Gas Industrial Chain in China 被引量:8
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作者 Liu Yijun Lin Shanshan Li Zhiwei 《Petroleum Science》 SCIE CAS CSCD 2006年第4期57-62,共6页
This paper establishes a risk assessment index system for the natural gas industrial chain. China's natural gas industrial chain is entering a stage of rapid growth. In order to guarantee healthy development of the n... This paper establishes a risk assessment index system for the natural gas industrial chain. China's natural gas industrial chain is entering a stage of rapid growth. In order to guarantee healthy development of the natural gas industrial chain, it is urgent to establish a risk alert system, which is based on a risk assessment index system. First of all, the risks of the natural gas industrial chain are defined in the paper; then the risk factors are analyzed according to the present status of the natural gas industrial chain, and five categories of risk factors are summarized: resource risk, transport risk, marketing risk, risk of unbalanced chain links, and environment risk. The paper presents the principles of the risk assessment index system. The natural gas industrial chain risk assessment index system is established with four levels and forty-six risk indices. 展开更多
关键词 Natural gas natural gas industrial chain risk analysis INDEX system
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CO2 and SO2 emission characteristics of the whole process industry chain of coal processing and utilization in China 被引量:9
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作者 Tao Zhu Ruonan Wang +3 位作者 Nengjing Yi Wenfeng Niu Lifeng Wang Zeyu Xue 《International Journal of Coal Science & Technology》 EI 2020年第1期19-25,共7页
The total coal consumption in China is on the rise.The characteristics of CO2 and SO2 emissions in the whole process of coal processing and utilization in China are worthy of study.Based on the five links of the whole... The total coal consumption in China is on the rise.The characteristics of CO2 and SO2 emissions in the whole process of coal processing and utilization in China are worthy of study.Based on the five links of the whole process of coal production and utilization,including coal production,raw coal processing,logistics and transportation,conversion and utilization and resource utilization,this paper summarized and analyzed the energy consumption and pollutant emission sources of these five links,combined with the US Environmental Protection Agency’s AP-42 method and IPCC method,to calculate total pollutant discharge and emission factors,where the emission factors were corrected by conversion efficiency.At the same time,uncertainty analysis is performed about CO2 and SO2 emissions.The results showed that CO2 emissions were 3.657 billion tons,and emission reductions were 61 million tons,and SO2 emissions were 4,844,500 tons,and emission reductions were 10.3595 million tons in 2015. 展开更多
关键词 COAL Industrial chain CO2 SO2 Emission characteristics
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Vertical Price Transmission in the China's Layer Industry Chain:an Application of FDL Approach 被引量:3
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作者 XU Shi-wei DONG Xiao-xia LI Zhe-min LI Gan-qiong 《Agricultural Sciences in China》 CAS CSCD 2011年第11期1812-1823,共12页
This paper examines the vertical price relationship between upstream and downstream products in China's layer industry chain by estimating elasticity coefficients of the price transmission. We use cointegration tests... This paper examines the vertical price relationship between upstream and downstream products in China's layer industry chain by estimating elasticity coefficients of the price transmission. We use cointegration tests, error correction models and finite distributed lag models to analyze vertical price shifts between corn, layer feed, egg-laying chicken and egg prices. With monthly data from 1994 to 2010, our results show that various prices in China's layer industry chain are well integrated. In addition, our results indicate that both long-run and short-run price relationships between upstream and downstream products in layer industry chain exist and the long-run equilibrium, to a certain extent, may eliminate the short-run dynamics price deviation. We also found that the influence of corn and feed prices on egg prices is still more remarkable than egg-laying chicken prices. Our findings imply that governments should pay more attention to corn and layer feed prices in order to stabilize egg prices under the conditions of market integration. 展开更多
关键词 finite distributed lag model vertical price transmission layer industry chain China
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Comparative Analysis on Farmers' Specialized Cooperatives from the Perspective of Agricultural Industry Chain 被引量:3
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作者 Guangmi LU Zaiqing ZHU 《Asian Agricultural Research》 2017年第2期6-9,11,共5页
Taking three typical farmers' specialized cooperatives in Jingyuan County of Gansu Province as example,this paper compared with the operating mode of three cooperatives and their position in the agricultural indus... Taking three typical farmers' specialized cooperatives in Jingyuan County of Gansu Province as example,this paper compared with the operating mode of three cooperatives and their position in the agricultural industry chain,and analyzed operating characteristics,problems,and similarities of three cooperatives and their functions in the agricultural industry chain.The study indicated that the farmers' specialized cooperatives can accurately find their position in the agricultural industry chain.This is helpful for raising their comprehensive competitiveness and it is very important to manage the survival and development of farmers' specialized cooperatives,which is of utmost importance to their effective operation.According to this study,the government should strengthen its support,speed up the cultivation of new-type professional farmers,while farmers' specialized cooperatives should grasp the operating characteristics,locate themselves and integrate multi-resources.These are effective measures for promoting healthy operation of farmers' specialized cooperatives. 展开更多
关键词 Farmers’ specialized cooperatives Operating mode Agricultural industry chain Comparative analysis
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Industrial transmission effect of international metal price shocks in perspective of industry chain 被引量:1
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作者 GAO Chuan HUANG Jian-bai +3 位作者 CHEN Jin-yu TANG Wen-yuan WANG Zhi-ping LIU Jing-xing 《Journal of Central South University》 SCIE EI CAS CSCD 2018年第12期2929-2943,共15页
Based on a new perspective of industry chain and selecting monthly data from February2006to December2015,this paper chooses eight Chinese industrial sectors to construct a SVAR model reflecting internal relationships ... Based on a new perspective of industry chain and selecting monthly data from February2006to December2015,this paper chooses eight Chinese industrial sectors to construct a SVAR model reflecting internal relationships among metal chains,analyzes the direct effects and indirect effects of international metal prices on output of various links in metal chains,then it investigates the main transmission path of international metal price shocks through decomposing the inflation pressure sources in metal chains.The results show that international metal price shocks not only affect industrial output in a direct way,but also indirectly affect the growth of output through the increased pressure on industrial inflation and then triggering a tightening of monetary policy implementation.Affected by factors such as the lack of market demand and the price transmission mechanism blocking,the direct effects of international metal price shocks mainly impact the upstream and midstream industry,while the downstream industry is mainly affected by indirect effects;in addition,the international metal price shocks have spillover effects on the industrial inflation,and transmit along the industry chain from upstream to downstream,and their strength weakens in sequence. 展开更多
关键词 international metal prices industry chain SVAR model transmission effect
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Analysis and evaluation of structural complexity of circular economy system's industrial chain
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作者 Hua-Ling SONG Yi ZHANG +1 位作者 Chun-Lei LI Chuan-Peng WANG 《Journal of Coal Science & Engineering(China)》 2013年第3期427-432,共6页
This paper examined the method to evaluate structural complexity of circular economy system's industrial chain, which applied entropy information and hierarchical metrics to produce complexity degrees according to th... This paper examined the method to evaluate structural complexity of circular economy system's industrial chain, which applied entropy information and hierarchical metrics to produce complexity degrees according to the theory of complex system. We developed an evaluation model to make a general metrics for circular economy system of industrial chains. The development of the evaluation tree drew upon five factors to identify the structural complexity. The evaluation model generated unitive entropy information from six data definition (node, level of community, metabolic span, degree of node, number of relation and connectivity of node) according to the evaluation tree. The industrial chains of Tashan circular economy park of Datong Coal Mine Group and Gujiao circular economy park of Xishan Coal-Electricity Group were evaluated by the proposed method. The key factors stunted by the decline of structural complexity were identified and the unitive metrics of entropy information of the industrial chain was shown for realigning the circular economy systems. 展开更多
关键词 COMPLEXITY circular economy system industrial chain evaluation of complexity
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Analysis of Hongdao Clam Industrial Structure Based on Industry Chain
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作者 Jiang Xianqiong 《Animal Husbandry and Feed Science》 CAS 2014年第4期221-224,共4页
The vertical and transverse structures of Hongdao clam industry are described and analyzed objectively based on the perspective of industry chain. On the basis of field investigation,the key nodes of Hongdao clam indu... The vertical and transverse structures of Hongdao clam industry are described and analyzed objectively based on the perspective of industry chain. On the basis of field investigation,the key nodes of Hongdao clam industry chain,including nursery,breeding,processing,transportation and sale,are analyzed. It can be concluded that the development of clam industry chain is unbalanced,especially the deep-processing capacity is not strong,and the development of supporting industy lags behind. The horizontal industry chain of clam needs to be further improved. The corresponding suggestions are put forward: strengthening research on new nursery technology in later period,further extending the horizontal industry chain of clam,mining the depth of clam-related leisure industry,and upgrading service level of leisure travel. 展开更多
关键词 Industrial structure industry chain industry coordination Policy recommendations
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Research on interest allocation in resource industry chain:taking resources exploitation in China as an example
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作者 Yingying Wu 《Chinese Journal of Population,Resources and Environment》 2014年第2期123-128,共6页
In this paper,interest allocation in the resource industry chain is studied taking resources exploitation in China as an example.First,qualitative analysis is used to conclude stakeholders and their relationship in mi... In this paper,interest allocation in the resource industry chain is studied taking resources exploitation in China as an example.First,qualitative analysis is used to conclude stakeholders and their relationship in mineral resource exploitation.In the following section,using the tool of price constitution and comparison method,the research on interest allocation along the industry chain shows that midstream and downstream companies have advantages.The next section studies interest allocation among resource owners,exploitation companies and local governments.Through contrastive analysis of the financial report of petroleum companies,this paper quantitatively measures the scale of revenue shifting from resource owners,the central and local governments to exploitation companies.This contorted interest allocation is an important factor resulting in exploitation confusion and the large revenue gap. 展开更多
关键词 resource industry chain interest allocation quantitative analysis
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A Study on the Interest Linkage Mechanism of the Taxus Industry Chain in Pengshui Miao and Tujia Autonomous County
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作者 Zhengchun WANG Guifang CHEN +4 位作者 Haiyan JIANG Guohao ZHANG Yan TIAN Jing XIN Jihui LI 《Agricultural Biotechnology》 CAS 2023年第5期22-25,共4页
At the Taxus base of Pengshui Miao and Tujia Autonomous County,Chongqing,the comprehensive development and utilization of Taxus was carried out with seedling cultivation,understory economy,product processing,ecotouris... At the Taxus base of Pengshui Miao and Tujia Autonomous County,Chongqing,the comprehensive development and utilization of Taxus was carried out with seedling cultivation,understory economy,product processing,ecotourism and other aspects as the main line.The benefit linkage mechanism of the operation of the Taxus industrial chain was explored and analyzed,so as to extend and supplement the Taxus industrial chain.The two models of"company+farmer"and"company+village collective+farmer"are relatively close benefit linkage models,which indirectly promote the increase of farmers income and smoothly guarantee the operation of the industrial chain,thereby playing a positive role during the development of the Taxus industry.This study provides reliable countermeasures and suggestions for the sustained and healthy development of the Taxus industry in Pengshui County. 展开更多
关键词 TAXUS Development and utilization Industrial chain Interest linkage Mechanism
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Security Policies for Web Service Invocation of Automotive Industry Chain Collaboration Platform
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作者 韩敏 《Journal of Southwest Jiaotong University(English Edition)》 2007年第3期192-196,共5页
To meet the actual requirements of an automotive industry chain collaboration platform (AICCP), this paper offers several simple but effective security policies based upon the traditional security mechanism of data ... To meet the actual requirements of an automotive industry chain collaboration platform (AICCP), this paper offers several simple but effective security policies based upon the traditional security mechanism of data transfer, including user ID verification with SOAP (simple object access protocol), header, SOAP message encryption with SOAP extension and XML (extensible markup language) file encryption and decryption. Application of these policies to the AICCP for more than one year proves the effectiveness of the data exchange practice between the AICCP and enterprise Intranet. 展开更多
关键词 Security policies Automotive industry chain collaboration platform (AICCP) Web service XML SOAP header SOAP extension
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Construction of Regional Grain Industry Chain and Supply Chain in Yunnan Province
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作者 Xuejiao WANG Liang LI +2 位作者 Zhaoqing MAO Longwei LI Liangzheng CHEN 《Agricultural Biotechnology》 CAS 2022年第4期124-131,135,共9页
As a southwestern border province of China,Yunnan is featured by the geographical advantage of proximity to the Indo-China Peninsula which is known as World Rice Warehouse,and its capital and technology are ahead of t... As a southwestern border province of China,Yunnan is featured by the geographical advantage of proximity to the Indo-China Peninsula which is known as World Rice Warehouse,and its capital and technology are ahead of the neighboring countries of China.Therefore,to enhance its support capability in consolidating and improving the national food security strategy,Yunnan should further develop its comparative advantages by building the regional food industry chain and supply chain depending on the province's grain system of production,processing,storage and transportation,as well as its agricultural economic and trade cooperation platforms and channels with the neighboring countries of China.In this study,comparative analysis and related methods were used to systematically analyze the scale of grain production in Yunnan,the proportion of its grain production to the national total amount,the transition of its grain variety structure and the characteristics of its food security system,as well as the grain export trade of the 6 countries in the Indo-China Peninsula from 2010 to 2019.Then,the problems in grain production in Yunnan were clarified,such as the decrease of grain ration production capacity,the decline of comparative benefits of grain production and the insufficient support for agricultural"going global"strategy.Finally,a series of countermeasures were put forward,including further implementing the strategy of"reserving grain in land and technology"to increase Yunnan's production capacity of grain,focusing on agricultural products storage and transportation system to improve the ability to obtain grain from abroad,expanding the border processing and logistics industry,optimizing the policy of agricultural products'import and export,and etc. 展开更多
关键词 Food security strategy industry chain and supply chain Comparative advantage Production capacity YUNNAN
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Study on industry chain based on perfect Songjiang district elderly health
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作者 HAO Xiaozhen 《International English Education Research》 2016年第6期29-32,共4页
In China's rapid aging, old before getting rich, the traditional way of pension weakening, health industry chain shortage situation, combining with the status quo of Shanghai Songjiang District elderly health industr... In China's rapid aging, old before getting rich, the traditional way of pension weakening, health industry chain shortage situation, combining with the status quo of Shanghai Songjiang District elderly health industry and the existing problems are analyzed, based on the existing health industry, practice, to explore the Shanghai Songjiang District is facing in the development of health industry., improve Songjiang elderly health industry chain. 展开更多
关键词 AGING health industry chain IMPROVEMENT
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Digital twin system framework and information model for industry chain based on industrial Internet
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作者 Wenxuan WANG Yongqin LIU +1 位作者 Xudong CHAI Lin ZHANG 《Frontiers of Information Technology & Electronic Engineering》 SCIE EI CSCD 2024年第7期951-967,共17页
The integration of industrial Internet,cloud computing,and big data technology is changing the business and management mode of the industry chain.However,the industry chain is characterized by a wide range of fields,c... The integration of industrial Internet,cloud computing,and big data technology is changing the business and management mode of the industry chain.However,the industry chain is characterized by a wide range of fields,complex environment,and many factors,which creates a challenge for efficient integration and leveraging of industrial big data.Aiming at the integration of physical space and virtual space of the current industry chain,we propose an industry chain digital twin(DT)system framework for the industrial Internet.In addition,an industry chain information model based on a knowledge graph(KG)is proposed to integrate complex and heterogeneous industry chain data and extract industrial knowledge.First,the ontology of the industry chain is established,and an entity alignment method based on scientific and technological achievements is proposed.Second,the bidirectional encoder representations from Transformers(BERT)based multi-head selection model is proposed for joint entity–relation extraction of industry chain information.Third,a relation completion model based on a relational graph convolutional network(R-GCN)and a graph sample and aggregate network(GraphSAGE)is proposed which considers both semantic information and graph structure information of KG.Experimental results show that the performances of the proposed joint entity–relation extraction model and relation completion model are significantly better than those of the baselines.Finally,an industry chain information model is established based on the data of 18 industry chains in the field of basic machinery,which proves the feasibility of the proposed method. 展开更多
关键词 industry chain Digital twin Industrial Internet Knowledge graph Graph neural network
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Production-teaching-research of a Commercial Aircraft Corporation in the Chinese Industry Chain
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作者 CHEN Lin, WANG Shuang-yuan, WEI Lin-wan School of Management, Northwestern Polytechnical University, Xi′an 710072, P.R.China 《International Journal of Plant Engineering and Management》 2012年第3期129-135,共7页
For the future development of a commercial aircraft corporation, this paper focused on the research and technological innovation model in an industrial chain and explored how to promote the sustainable development of ... For the future development of a commercial aircraft corporation, this paper focused on the research and technological innovation model in an industrial chain and explored how to promote the sustainable development of technological innovation on the basis of the Chinese aviation industry. It puts forward several ways to reinforce cooperation, such as strengthening policies and regulations, government's support for research cooperations, accelerating construction of the production-teaching-research oriented public technology platform and service system, and firming the industry awareness of universities and research institutes, and so on. 展开更多
关键词 industry chain production-teaching-research promotion strategy technology innovation
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Risk Management Situation and Strategic Analysis of Supply Chains of Small and Medium Enterprises in Luzhou Liquor Industry Development Zone
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作者 Peng Xu 《International Journal of Technology Management》 2016年第7期64-67,共4页
After entering the information-based society, profound reform has happened in the business pattern of enterprises, and thecompetitive mode between traditional enterprises has been transformed into the competition betw... After entering the information-based society, profound reform has happened in the business pattern of enterprises, and thecompetitive mode between traditional enterprises has been transformed into the competition between supply chains in nowadays. The liquorindustry in Luzhou is the pillar industry of economy, which involves “Luzhou Old Cellar”, “Ichiro Liquor”and other large-scale enterpriseswith well-known brands. Besides, many small and medium-sized enterprises are developing and flourishing in Luzhou. Compared with thedevelopment of large enterprises, the development of small and medium sized enterprises has more uncertainty and risks. At present, Luzhou Cityis setting about to build Huangyi into a liquor centralized zone, which is also a clusterization strategy for industry development of Luzhou liquor.For Luzhou Liquor Zone, the implementation of supply chain management of small and medium-sized enterprises can greatly reduce the cost ofenterprises and improve effi ciency of operation. The growth and development of small and medium-sized enterprises in Luzhou Liquor Zone andthe promotion of advantages of industrial clusters are closely related to the risks of the supply chain. 展开更多
关键词 Risk Management of Supply chain network Type Supply chain of Liquor industry Development Zone Risk Prevention ofSupply chain
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Research on Strategies to Promote the Integration of Industrial Chain,Innovation Chain,and Supply Chain in the Beijing-Tianjin-Hebei Region
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作者 Chengguo E Ahui Mao +2 位作者 Xiuyan Huang Lian Lian Kun Yi 《Proceedings of Business and Economic Studies》 2024年第4期166-171,共6页
With the rapid development of international economic integration,industrial competition has gradually evolved from a competition of enterprise capabilities and resources to a game of comprehensive system collaboration... With the rapid development of international economic integration,industrial competition has gradually evolved from a competition of enterprise capabilities and resources to a game of comprehensive system collaboration capabilities among all participating parties.That is,the competition in the current international economy has evolved into an interactive and collaborative competition among the“three chains”of industry chain,capital chain,and innovation chain.Based on analyzing the current situation of the integration of the industrial chain,innovation chain,and supply chain,this article deeply analyzes the geographical advantages of the three chains in the Beijing-Tianjin-Hebei region.From the perspective of scientific and technological innovation and talent cooperation synergy,it proposes the integration strategy of the three chains in the Beijing-Tianjin-Hebei region. 展开更多
关键词 Industrial chain Innovation chain Supply chain BEIJING-TIANJIN-HEBEI Spatial distribution
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Analysis of Patent Application Status of Scutellaria Barbata Industrial Chain Based on Patent Data
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作者 Zeng Yingying Liu Tong +2 位作者 Liu Yue Song Aiwei Yuan Hongmei 《Asian Journal of Social Pharmacy》 2024年第1期89-97,共9页
Objective To analyze patent application status of Scutellaria Barbata industrial chain and provide some suggestions for its patent application and product development.Methods Patent data were collected through IncoPat... Objective To analyze patent application status of Scutellaria Barbata industrial chain and provide some suggestions for its patent application and product development.Methods Patent data were collected through IncoPat patent analysis system.Meanwhile,the patent analysis method combined with text mining method was adopted to analyze the situation and development trend of patent application in China’s Scutellaria Barbata industrial chain by using pie chart,bubble chart,trend chart and other visual charts to display the results.Results and Conclusion The patent application of Scutellaria Barbata in China mainly experienced three stages:Slow development,rapid development,and recession period.The number of patents is large,but the authorization rate is low.Individuals and enterprises are the main applicants for patent applications.Product development is involved in the whole industrial chain,but it basically focuses on its efficacy in downstream drugs,health food and other aspects.Therefore,government should enhance the awareness of patent protection,encourage collaborative innovation in industry-university-research to promote the combination of basic research and market application.Besides,it should provide theoretical support to tackle the problem of short board products,which can promote the transformation of scientific and technological achievements and contribute to the upgrading of Scutellaria Barbata industrial chain. 展开更多
关键词 Scutellaria Barbata PATENT industrial chain
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Price Transmission in China's Swine Industry with an Application of MCM 被引量:7
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作者 XU Shi-wei LI Zhe-min +3 位作者 CUI Li-guo DONG Xiao-xia KONG Fan-tao LI Gan-qiong 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2012年第12期2097-2106,共10页
The paper studies the relationship, adjustment ability, path, efficiency and intensity of price transmission in the swine industry chain in China, which consists of the prices of corn, compound feed for fattening pig,... The paper studies the relationship, adjustment ability, path, efficiency and intensity of price transmission in the swine industry chain in China, which consists of the prices of corn, compound feed for fattening pig, piglet, pig and pork. Monthly prices covering a period of 18 yr (1994-2011) are analyzed using a Market-Chain Cooperated Model (MCM). The empirical results show that there exists a stable long-term cointegration and short-term dynamic relationship in the price system. First, the adjustment speed of each price series is very slow and the transmission path is top-down and one-way significantly. Second, the price from upstream to downstream lags about 2 mort, while there is no lag in price transmission from midstream to downstream. Third, in terms of price transmission intensity, the price of pig impacted greatly on pork price, not only in the current period but also through the whole period. Besides, the price of corn has the largest lagged effects on pork price. According to the above empirical results, we suggest that government should strengthen monitoring and early warning of the swine industry chain, especially the upstream and midstream, attach great importance to the timely adjustment of feed prices and perfect the measures of price subsidy. 展开更多
关键词 price transmission Market-chain Cooperated Model swine industry chain
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