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Construction of industrial ecological chain for characteristic small town:A case study of VR Town at Gui-An New District 被引量:1
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作者 DENG Xiang 《Ecological Economy》 2017年第1期89-98,共10页
As the rapid development of the national small characteristic town,some problems began to show through.For example,the spatial structure is not reasonable,the industrial is not harmonious,and the industrial cluster is... As the rapid development of the national small characteristic town,some problems began to show through.For example,the spatial structure is not reasonable,the industrial is not harmonious,and the industrial cluster is not obvious and so on.In order to solve these uncoordinated problems and arrange industrial structure properly,to build the industrial ecologic chain construction according to local conditions appears to be critical.Therefore,constructing industrial ecological chain is of importance in academic aspect and practical significance to sustainable development.According to the theory of industrial ecology,this article researches on industrial ecological chain construction of Gui-An New District's VR town.Otherwise,with the principles of vertical supply-demand chain,horizontal collaboration chain,energy utilization chain,material circulation chain and water cycle chain,on the basis of five elements including public environment,service bake up,demand-supply collaboration,management system in a cloud and resource reuse,this paper put forward the industrial ecological chain model of VR town in Gui-An New District and analyze each links detailedly.The purpose is to explore and analyze the industrial ecological chain construction of VR town in Gui-An New District to abundant domestic related theory about small town and play a certain reference significance on other new-type of characteristic urbanization in mountainous region. 展开更多
关键词 small town characteristic town industrial ecological chain vertical demand-supply chain horizontal collaboration chain
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A study on ecological operation of web IP industrial chain 被引量:1
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作者 HAO Wen-jing WANG Xue-mei 《Ecological Economy》 2017年第3期247-253,共7页
In recent years, since the Internet has given rise to mass creation and the intervention of industrial capital, China's web IP has experienced a "blowout" growth, which accelerates the development of the... In recent years, since the Internet has given rise to mass creation and the intervention of industrial capital, China's web IP has experienced a "blowout" growth, which accelerates the development of the ecological operation of its industry chain a pressing issue, especially in the ecological environment via multi-media and "full-copyright" platforms. In the thesis, the author firstly talks about the ecological operation context of web IP, and then the existing problems of the ecological operation of web IP industrial chain, such as the insufficiency in copyright protection, the economic bubbles on its expansion, the lack of originals and the cash-out mentality toward currency. Therefore, the author comes into the conclusion that, there are enormous potentials for the ecological operation of web IP industrial chain. This demands further platforms across the multiple industrial running of web IP, building its brand through the development of"full-copyright". In one word, the life of web IP would be sustained with ecological progress in multimedia consumption, and the ecological operation of web IP industrial chain would be achieved in fact. 展开更多
关键词 web IP ecological operation industry chain full-copyright
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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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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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Reengineering Model of Supply Chain of Tea Industry in Yunnan
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作者 LI Yan-feng 1, JIANG Fa-kui 2 (1. Management School, Huazhong University of Science and Technology, Wuhan 430074, China 2. Department of Business Administration, Yunnan University of Finance and Economics, Kunming 650221, China) 《厦门大学学报(自然科学版)》 CAS CSCD 北大核心 2002年第S1期230-231,共2页
Yunnan University of finance and Trade recording to t he statistics of chain’s output of tea, Yunnan province has entered the ranks of the larger ones of the production in China. Yunnan’s tea industry has the natur ... Yunnan University of finance and Trade recording to t he statistics of chain’s output of tea, Yunnan province has entered the ranks of the larger ones of the production in China. Yunnan’s tea industry has the natur al resources and the economic effects envied, on the orther hand, Yunnan’s tea m arket has gradually become less and the economic effects have been poor. Through our comprehensive investigation and study, we consider that because the supply chain has seriously been disjointed among production, supply and sale of tea ind ustry in Yunnan, the supply chain of Yunnan’s tea industry need to be reorganize d for the promoting the development of Yunnan’s tea industry. The essence of reengineering of Yunnan’s tea industrial supply chain is to set u p the model of the trailed operation,to strengthen the strategic partnership man agement between the supply chain, to optimize the design of the supply chain and build up and improve the working mechanism for management of the tea industrial supply chain. The structure of Yunnan’s model of tea industrial supply chain: the model of com mercial flow; the model of logistics flow; the model of information flow and the model of cash flow. The solutions and policies for the reorganization of Yunnan’s tea industrial sup ply chain: planning, logistics and distribution and sales. Set up the supporting system of information technology. Build up the control system of production and planning.Improve the working mechanism of Yunnan’s tea industrial supply chain. Implement the engineering of exporting Yunnan’s tea into the markets of other p rovinces and foreign markets. Have many the channels that raise the funds of dev elopment for Yunnan’s tea industry. 展开更多
关键词 Yunnan tea industry reengineering supply chain building model
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Global Value Chains in the Era of 4IR: New Paradigm of Business Models for SMEs
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作者 Roberto Mavilia Roberta Pisani 《Chinese Business Review》 2021年第1期1-10,共10页
This paper presents a brief literature review of previous studies methodologies,models,and contexts in studying firms’upgrading in Global Value Chains(GVCs).The key context of this paper is set within Fourth Industri... This paper presents a brief literature review of previous studies methodologies,models,and contexts in studying firms’upgrading in Global Value Chains(GVCs).The key context of this paper is set within Fourth Industrial Revolution(4IR).Through the literature review,this paper offers to identify the opportunities of theoretical novelty and ways to elaborate on understanding firm dynamics in Global Value Chains in the context of 4IR.The approach based on Business Model(BM)innovations and new forms of organizing for business(such as platforms)is used to synthesize from previous research findings and build on to newer explanations of firms’entry,learning,and upgrading within GVCs. 展开更多
关键词 Fourth industrial Revolution Business models Global Value chains
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To Explore the Innovation of Mobile E-commerce Model in Service Industry From the Perspective of Supply Chain
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作者 HAN Yalin Yu Li 《International English Education Research》 2017年第4期34-36,共3页
This paper analyzed the service supply chain of the domestic industry, tourist industry, information service industry in the mobile e-business environment, according to the function of different participators in suppl... This paper analyzed the service supply chain of the domestic industry, tourist industry, information service industry in the mobile e-business environment, according to the function of different participators in supply chain and their relationship between each other, this paper obtained different patterns of different industry in the mobile e-commerce environment. 展开更多
关键词 supply chain service industry mobile e-commerce model
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“Products-Knowledge” Two-Dimensional Increment Model of Fashion Industry Value Chain Based on Industry Analysis
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作者 刘畅 黄震宇 《Journal of Donghua University(English Edition)》 EI CAS 2016年第4期660-664,共5页
Fashion industry has a complex characteristic for it spans the first, second, and third industries. In addition, the characteristic of creative industry has high value-added for its knowledge outputting, which makes t... Fashion industry has a complex characteristic for it spans the first, second, and third industries. In addition, the characteristic of creative industry has high value-added for its knowledge outputting, which makes the traditional value-added analysis based on supply chain not easy and good enough to interpret its industry value-added features. From the perspective of "products-knowledge" two-dimensional analysis,a fashion industry value chain increment model is built,by simulating the process of "product flow" and "information flow" value-added. The fashion industry value chain increment model provides an effective way for the enterprise strategy formulation and production strategy adjustment. 展开更多
关键词 fashion formulation adjustment creative return ledge increment enough manufacture itself
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Numerical analysis of ossicular chain lesion of human ear 被引量:12
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作者 Yingxi Liu Sheng Li Xiuzhen Sun 《Acta Mechanica Sinica》 SCIE EI CAS CSCD 2009年第2期241-247,共7页
Abstract Lesion of ossicular chain is a common ear disease impairing the sense of hearing. A comprehensive numerical model of human ear can provide better understanding of sound transmission. In this study, we propose... Abstract Lesion of ossicular chain is a common ear disease impairing the sense of hearing. A comprehensive numerical model of human ear can provide better understanding of sound transmission. In this study, we propose a three-dimensional finite element model of human ear that incorporates the canal, tympanic membrane, ossicular bones, middle ear suspensory ligaments/muscles, middle ear cavity and inner ear fluid. Numerical analysis is conducted and employed to predict the effects of middle ear cavity, malleus handle defect, hypoplasia of the long process of incus, and stapedial crus defect on sound transmission. The present finite element model is shown to be reasonable in predicting the ossicular mechanics of human ear. 展开更多
关键词 Finite element model Ossicular chain lesionAcoustic-structural coupled analysis Middle ear cavity Sound transmission
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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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The Construction and Competitiveness of Operation Model of Agricultural Industrial Cluster 被引量:1
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作者 YANG Fang 《Asian Agricultural Research》 2011年第7期80-84,共5页
Through reviewing the viewpoints of former scholars, the connotation and features of supply chain of agricultural industrial cluster are introduced. The agricultural industrial cluster model constituted by core networ... Through reviewing the viewpoints of former scholars, the connotation and features of supply chain of agricultural industrial cluster are introduced. The agricultural industrial cluster model constituted by core network and supporting network is constructed. Three operation models of this kind of supply chain is described: the model takes wholesale market of agricultural products as the core; the model take pillar industries of agricultural industrialization as core; model takes the chains of retail enterprises as core. The competitiveness of agricultural industrial cluster is researched. The research assumes that the competiveness of supply chain of agricultural industrial cluster is mainly represented to make the agricultural industrial cluster to acquire more capabilities in terms of innovation and knowledge sharing capability, resource allocation capability, agile market adaptability and distinct value creation capability. 展开更多
关键词 Supply chain of agricultural industrial cluster Operation model COMPETITIVENESS China
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Optimization Agricultural Supply Chain:A Case Study of Fertilizer Supplier Selection
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作者 Nguyen Van Thanh Nguyen Thi Kim Lan +2 位作者 Syed Tam Husain Nguyen Hoang Hai Nguyen Viet Tinh 《Computers, Materials & Continua》 SCIE EI 2022年第8期4057-4068,共12页
The 21st century is associated with the IndustrialRevolution 4.0 and the organic agriculture trend,making the utilization of high-quality fertilizers,abundant nutritional content,economical,and no affect to environmen... The 21st century is associated with the IndustrialRevolution 4.0 and the organic agriculture trend,making the utilization of high-quality fertilizers,abundant nutritional content,economical,and no affect to environment pollution.According to the new concept,clean agricultural production and organic agricultural products are not allowed to excessively use synthetic chemicals such as chemical fertilizers,and plant protection drugs,but priority is to use manure,organic fertilizers,and natural mineral fertilizers.Fertilizer must meet the balanced nutritional requirements of crops,maintain,and improve the fertility of the ground,protect the surrounding ecosystem,and leave harmful effects in agricultural products,products with high quality,safe for users and high economic efficiency for producers.To achieve the above goal,the selection of a fertilizer supplier is an important decision,supporting the supply chain’s sustainable development,fertilizer supplier selection is a multicriteria decision making model,the decision maker must assess all qualitative and quantitative factors.In this paper,the author proposed an integer decision making model including Fuzzy Analytic Hierarchy Process(FAHP)and Complex Proportional Assessment of Alternatives(COPRAS)for fertilizer supplier selection.The weightings of the criteria are calculated by using FAHP,COPRAS is then applied for ranking some potential fertilizer suppliers.The efficiency of the proposed models is proved by a case study conducted in a farm located in the south of Vietnam.This research is the first fertilizer supplier evaluation and se-lection model in Vietnam by interviewing experts and reviewing the literature.Re-search result is to provide a case study on evaluating supplier in agricultural supply chain utilizing the model proposed by the combination of FAHP and COPRAS models. 展开更多
关键词 Fertilizer industry optimization model fuzzy theory agricultural supply chain
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Brownian localization:A generalized coupling model yielding a nonergodic Langevin equation description
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作者 刘剑 王海燕 包景东 《Chinese Physics B》 SCIE EI CAS CSCD 2013年第6期300-305,共6页
A minimal system-plus-reservoir model yielding a nonergodic Langevin equation is proposed, which originates from the cubic-spectral density of environmental oscillators and momentum-dependent coupling. This model allo... A minimal system-plus-reservoir model yielding a nonergodic Langevin equation is proposed, which originates from the cubic-spectral density of environmental oscillators and momentum-dependent coupling. This model allows ballistic diffusion and classical localization simultaneously, in which the fluctuation-dissipation relation is still satisfied but the Khinchin theorem is broken. The asymptotical equilibrium for a nonergodic system requires the initial thermal equilibrium, however, when the system starts from nonthermal conditions, it does not approach the equilibration even though a nonlinear potential is used to bound the particle, this can be confirmed by the zerotb law of thermodynamics. In the dynamics of Brownian localization, due to the memory damping function inducing a constant term, our results show that the stationary distribution of the system depends on its initial preparation of coordinate rather than momentum. The coupled oscillator chain with a fixed end boundary acts as a heat bath, which has long been used in studies of collinear atom/solid-surface scattering and lattice vibration, we investigate this problem from the viewpoint of nonergodicity. 展开更多
关键词 ocalization nonergodicity generalized coupling model coupled oscillator chain
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链主企业生态主导力提升产业链韧性路径研究——以比亚迪和中国新能源汽车产业链为例 被引量:2
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作者 王进富 李婷婷 张颖颖 《科技进步与对策》 CSSCI 北大核心 2024年第21期151-160,共10页
提升产业链供应链韧性和安全水平已成为新发展阶段推动我国高质量发展的关键着力点,具备生态主导力的链主企业在产业链韧性提升过程中扮演着支撑者、引领者和组织者的角色。以比亚迪和中国新能源汽车产业链为研究对象,采用扎根理论方法... 提升产业链供应链韧性和安全水平已成为新发展阶段推动我国高质量发展的关键着力点,具备生态主导力的链主企业在产业链韧性提升过程中扮演着支撑者、引领者和组织者的角色。以比亚迪和中国新能源汽车产业链为研究对象,采用扎根理论方法进行探索性单案例研究,探究链主企业生态主导力能力维度和产业链韧性提升路径。研究发现:①链主企业生态主导力包括技术创新引领能力、产业协作整合能力、数字转型赋能能力3个维度;②链主企业生态主导力通过促进产业链关键核心技术突破、产业链协同配套、产业链数字化转型3条路径提升产业链韧性,技术创新引领能力能够促进产业链关键核心技术突破,实现强链、补链,产业协作整合能力能够促进产业链协同配套,实现稳链、固链,数字转型赋能能力能够促进产业链数字化转型,实现延链、优链,从而显著提高产业链风险抵御能力、冲击恢复能力、链条升级能力。研究结论有助于拓展链主企业生态主导力与产业链韧性相关研究,为链主企业提升生态主导力和增强产业链韧性提供实践参考。 展开更多
关键词 链主企业生态主导力 产业链韧性 新能源汽车产业 扎根理论
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中国文化和旅游融合发展效率时空动态演化及其驱动机制 被引量:11
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作者 王兆峰 谢佳亮 《旅游学刊》 CSSCI 北大核心 2024年第1期34-51,共18页
提高文旅融合发展效率是关乎效率变革和质量变革背景下文化和旅游深度融合及高质量发展的重要科学问题,有效把握其动态演化特征及驱动机制对推动区域文化产业与旅游产业转型升级和提质增效及其深度融合高质量发展具有重要的理论价值和... 提高文旅融合发展效率是关乎效率变革和质量变革背景下文化和旅游深度融合及高质量发展的重要科学问题,有效把握其动态演化特征及驱动机制对推动区域文化产业与旅游产业转型升级和提质增效及其深度融合高质量发展具有重要的理论价值和现实意义。文章构建文化和旅游融合发展效率分析框架,运用耦合协调模型、基于松弛变量的超效率测度模型、空间马尔科夫链和面板空间杜宾模型等方法,剖析中国2011—2019年文化和旅游融合发展效率的时空动态特征及其驱动机制。研究发现:1)中国文化和旅游融合发展效率在9年间仅提升3.4%,距离最佳生产前沿面还存在至少17.3%的潜力空间,4大区域呈东部>中部>西部>东北格局,并且仅天津、上海、广东与云南4个省份常年达到最佳生产前沿面,其他省份还存在至少6.7%~33.9%的潜力空间;2)中国文化和旅游融合发展效率大致呈现“东南沿海高值集聚,西北内陆低值集聚”空间格局,存在显著的路径依赖与马太效应现象,短期内难以实现跨越式增长,但当与高效率的省份为邻时,本地省份文化和旅游融合发展效率向上转移概率有所提升;3)产业结构与交通水平是提高本地省份文化和旅游融合发展效率的主要因素,但对邻近省份产生了负向溢出效应,科技创新、消费需求和政府调控促进了邻近省份文化与旅游融合发展效率,但对本地省份的推动作用尚不显著,服务队伍抑制了本地省份文化与旅游融合发展效率,但对邻近省份的溢出效应并不显著。 展开更多
关键词 文化产业 旅游产业 文旅融合 效率 空间马尔科夫链 面板空间杜宾模型
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新发展格局下体育竞赛表演业产业链韧性提升的耦合逻辑、风险因素与实践方略 被引量:1
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作者 焦强 范尧 +1 位作者 张宇 郑冠杰 《沈阳体育学院学报》 CSSCI 北大核心 2024年第3期107-113,121,共8页
依托新发展格局,提升体育竞赛表演业产业链韧性是产业链现代化建设和体育竞赛表演业高质量发展的重要议题。本文运用文献资料法、逻辑分析法,结合产业链韧性的内涵将体育竞赛表演业产业链韧性拆解为补链、疏链和强链能力,具体表现为产... 依托新发展格局,提升体育竞赛表演业产业链韧性是产业链现代化建设和体育竞赛表演业高质量发展的重要议题。本文运用文献资料法、逻辑分析法,结合产业链韧性的内涵将体育竞赛表演业产业链韧性拆解为补链、疏链和强链能力,具体表现为产业链在面对外部压力或风险时的冲击抵抗能力、恢复重构能力和核心竞争能力,此“三力要素”与构建新发展格局存在高度耦合。在此基础上识别新发展格局下体育竞赛表演业产业链韧性提升的风险因素:断链风险,核心技术自主创新能力不足;堵链风险,竞赛表演市场供求关系失衡;弱链风险,复合型体育人才本土供给不足。据此提出实践方略:补链方面,以完善的数字基础设施构建体育竞赛表演产业生态体系;疏链方面,以供给侧结构性改革调和体育竞赛表演市场供求关系;强链方面,以多元化渠道提升体育竞赛表演业人才要素流通效率。 展开更多
关键词 新发展格局 体育竞赛表演业 产业链韧性 耦合逻辑 实践方略
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产业协同集聚、数字经济与产业链韧性提升研究——基于省级面板数据的实证检验 被引量:2
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作者 李文龙 梁帆 魏曙光 《科学与管理》 2024年第3期45-53,共9页
随着产业发展进入新阶段,产业协同集聚和数字经济已经成为提升产业链韧性的核心驱动力,基于2011—2021年我国省级面板数据,采用熵权法对产业链韧性进行了测算,运用双重固定效应模型和空间杜宾模型考察产业协同集聚、数字经济对产业链韧... 随着产业发展进入新阶段,产业协同集聚和数字经济已经成为提升产业链韧性的核心驱动力,基于2011—2021年我国省级面板数据,采用熵权法对产业链韧性进行了测算,运用双重固定效应模型和空间杜宾模型考察产业协同集聚、数字经济对产业链韧性的影响。研究发现:不同地区的产业链韧性存在显著差异。产业协同集聚与数字经济均显著促进了产业链韧性提升。但是二者对产业链韧性提升的空间溢出作用存在差异。其次,数字经济在产业协同集聚促进产业链韧性提升的过程中发挥显著的正向调节作用,但这种正向调节作用在中西部地区不显著。基于上述结论,提出了扩大产业协同集聚空间范围、加强数字经济建设、强化我国中西部欠发达地区的产业基础设施建设等提升产业链韧性的对策建议。 展开更多
关键词 产业协同集聚 数字经济 产业链韧性 空间杜宾模型
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基于VAR模型的生猪产业链价格波动影响因素分析 被引量:1
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作者 刘彧 《饲料研究》 CAS 北大核心 2024年第5期182-186,共5页
生猪产业链价格剧烈波动不仅关系消费者的切身利益,也对生猪产业长远发展具有重要影响。基于2009—2022年161个月度样本数据,文章采用VAR模型,从生猪产业链主要产品价格以及上游环节、中下游环节2个层面出发,探究生猪产业链价格波动的... 生猪产业链价格剧烈波动不仅关系消费者的切身利益,也对生猪产业长远发展具有重要影响。基于2009—2022年161个月度样本数据,文章采用VAR模型,从生猪产业链主要产品价格以及上游环节、中下游环节2个层面出发,探究生猪产业链价格波动的影响因素。结果显示:生猪产业链价格波动受自身主要产品价格的影响最大,前10期生猪产业链主要产品价格对当月生猪产业链价格波动仍具有61.835 8%的影响。从产业链上游环节观察,稻糠价格、大豆价格和小麦麸价格均能够对生猪产业链价格波动产生显著影响,前10期稻糠价格对当月生猪产业链价格波动的影响达到39.783 8%。从产业链中下游环节观察,通货膨胀水平和养殖场规模对生猪产业链价格波动的影响程度较大。研究表明,生猪产业链价格波动容易受到自身主要产品价格、稻糠价格、大豆价格、小麦麸价格、通货膨胀水平、养殖场规模等因素影响,应从完善价格波动预警机制和加强流通运行环节调控两方面着手推动生猪市场稳定发展。 展开更多
关键词 生猪产业链 价格波动 VAR模型
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中国省域文化产业与经济高质量发展的动态响应及协调效应研究 被引量:1
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作者 苏晓智 周克勤 《资源开发与市场》 CAS 2024年第8期1239-1249,共11页
在当前国家提出高质量发展的战略背景下,文化产业成为推动经济高质量发展的重要资源之一。以中国30个省区市为研究对象,采用熵权法测度2012—2021年中国省域文化产业与经济高质量发展水平,继而采用PVAR模型探讨了二者的互动响应关系,最... 在当前国家提出高质量发展的战略背景下,文化产业成为推动经济高质量发展的重要资源之一。以中国30个省区市为研究对象,采用熵权法测度2012—2021年中国省域文化产业与经济高质量发展水平,继而采用PVAR模型探讨了二者的互动响应关系,最后利用修正的耦合协调模型和马尔科夫链深入剖析了二者协同发展的时空演变特征。结果表明:①中国省域文化产业与经济高质量发展综合水平稳步上升,经济高质量发展整体水平高于文化产业,年均增长速度低于文化产业。中国省域文化产业与经济高质量发展均呈现较为显著的空间异质性,整体表现为“由西向东”梯度式递增的格局;②中国省域文化产业与经济高质量发展之间存在双向互动关系,短期内二者受自身发展的影响较大,长期来看彼此间的交互影响不断增强。前期文化产业与经济高质量发展主要依靠自身发展,后期经济高质量发展对文化产业的作用不断增强,文化产业对经济高质量发展的影响稳定在有限区间;③中国省域文化产业与经济高质量发展的总体耦合协调发展水平较低。耦合协调度在空间层面呈现出“东南高,西北低”的空间分异格局;④中国省域文化产业与经济高质量发展的耦合协调度维持原有状态的概率最大,存在“马太效应”和“俱乐部收敛”现象,难以实现跨越等级式的演化。 展开更多
关键词 文化产业 经济高质量发展 PVAR模型 耦合协调度 马尔科夫链 动态效应
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粤港澳大湾区“四链”融合发展评价探索性研究:基于耦合协调度与灰色关联度的分析 被引量:2
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作者 喻锋 桃娜尔·赛力克 《城市观察》 2024年第1期20-31,159,160,共14页
面对当前要素驱动向创新驱动转型的现实发展需求,粤港澳大湾区已初步构筑起创新链、产业链、资金链、人才链“四链”深度融合的基础生态,但融合的状态、水平和层次都存在可以优化提升的空间。文章采用耦合协调度与灰色关联度对粤港澳大... 面对当前要素驱动向创新驱动转型的现实发展需求,粤港澳大湾区已初步构筑起创新链、产业链、资金链、人才链“四链”深度融合的基础生态,但融合的状态、水平和层次都存在可以优化提升的空间。文章采用耦合协调度与灰色关联度对粤港澳大湾区“四链”融合发展水平进行实证分析,研究发现:“创新—产业—资金—人才”四个子链已逐渐从低水平均衡向高水平均衡过渡,从极度不协调发展向高度协调状态过渡发展。“创新链—产业链”子系统耦合对整体“四链”融合水平贡献度最高。 展开更多
关键词 “四链”融合 耦合协调度 灰色关联度 协同 粤港澳大湾区
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