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Construction and Exploration of an Intelligent Course in Chinese Medicinal Materials Commodity Science Based on the"One Core,Three Integrations,Five Transformations"Blended Teaching Path 认领 引用
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作者 Fangfang DA Baiyu DONG +1 位作者 Xiangpei WANG Kequn HE 《Asian Agricultural Research》 2026年第6期36-40,共5页
As a compulsory course for the Chinese Medicinal Resources and Development major,Chinese Medicinal Materials Commodity Science has long faced challenges in teaching practice concerning student motivation,content innov... As a compulsory course for the Chinese Medicinal Resources and Development major,Chinese Medicinal Materials Commodity Science has long faced challenges in teaching practice concerning student motivation,content innovation,and pedagogical value orientation.In response,the course team first broke away from the traditional course framework and initiated blended teaching reform and practical research,adhering to the principle of"Preserving the Essence while Innovating",upholding the concepts of student-centeredness,problem-orientation,and continuous improvement,and fully leveraging the appeal,value-driven force,and attractiveness of curriculum-based ideological and political education.The team explored and established an innovative teaching path characterized by"One Core,Three Integrations,and Five Transformations".This path centers on"Fostering Virtue and Cultivating Talent",achieves integration across"Knowledge,Competency,and Values",and drives the transformation of five key aspects:reshaping the course objectives towards being"high-level,innovative and challenging",restructuring the teaching content to be"layered and progressive",reforming the teaching strategy to be"task-driven",renewing teaching resources to be"co-constructed and shared",and reconstructing the evaluation system to be"multidimensional and comprehensive".Practical results demonstrate that this path has effectively addressed the identified teaching problems,enhanced student learning outcomes,and successfully achieved the established educational objectives of the course with high quality. 展开更多
关键词 Chinese Medicinal Materials Commodity Science Teaching path Teaching exploration
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Baidu News and the return volatility of Chinese commodity futures:evidence for the sequential information arrival hypothesis 认领 引用
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作者 Ruwei Zhao Xiong Xiong +2 位作者 Junjun Ma Yuzhao Zhang Yongjie Zhang 《Financial Innovation》 2025年第1期2279-2302,共24页
This study uses Baidu News data and introduces a novel proxy for the rate of information flow to examine its relationship with return volatility in Chinese commodity futures and to test two competing hypotheses.We exa... This study uses Baidu News data and introduces a novel proxy for the rate of information flow to examine its relationship with return volatility in Chinese commodity futures and to test two competing hypotheses.We examine the contemporaneous relationships using correlation coefficient analysis,and find apparent differences between the information flow-return volatility relationship and the information flowtrading volume relationship.The empirical evidence contradicts the mixture of distribution hypothesis(MDH)and suggests that the rate of information flow distinctly affects trading volume and volatility.We conducted linear and nonlinear Granger causality tests to explore the sequential information arrival hypothesis(SIAH).The empirical results prove that a lead-lag linear and nonlinear causality exists between the information flow and return volatility of commodity futures,which is consistent with SIAH.In other words,a partial equilibrium exists before reaching the ultimate equilibrium when the new information arrives in the market.Finally,these findings are robust to alternative measurement of return volatility and subperiod analysis.Our findings reject the MDH and support the SIAH in the context of Chinese commodity futures. 展开更多
关键词 Baidu News Chinese commodity futures Return volatility Sequential information arrival hypothesis Mixture of distribution hypothesis
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Asymmetric risk contagion effect of the interaction between the real economy and the financial sector—an analysis based on the domestic commodity price index 认领 引用 被引量：1
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作者 Quan Yonghui Miao Wenlong 《Financial Innovation》 2025年第1期970-995,共26页
As the uncertainty of the global economy intensifies,domestic real economy risks and financial risks may interact and worsen under international risk shocks.Commodity prices are an important channel for transmitting i... As the uncertainty of the global economy intensifies,domestic real economy risks and financial risks may interact and worsen under international risk shocks.Commodity prices are an important channel for transmitting international economic and financial risks.Taking January 2007 to July 2021 as the sample period and using data from nine commodity price indices and banking,diversified finance,and insurance industry indices,this article uses rolling regression method to construct different commodity price risk and financial sector risk indicators.Combined with a vector autoregressive model,the risk contagion effect is calculated.The analysis indicates that there exist significant asymmetric risk contagion effects between various commodities(with energy and steel having the largest risk spillover effects)and there are significant net risk spillover effects on financial sectors(with insurance having the largest risk spillover effect).There are asymmetric risk contagion effects among different financial sectors,with varying degrees of risk spillover effects on commodity prices(with the banking sector having the greatest risk spillover effects on commodity prices and other financial sectors,and diversified finance having the greatest risk spillover effect on commodities).During major global financial events,the risk spillover effects of commodities and input effects increase significantly due to the intensification of the risk spillover effects of energy,steel,and nonferrous metals.The risk spillover effect between commodities and the overall risk spillover effect have significantly increased.The financial sector’s overall net risk input effect has increased,while the net risk input effect of the insurance sector has also increased.These findings are significant for improving systemic financial risk monitoring indicators and adopting accurate prevention and control measures. 展开更多
关键词 Systemic financial risk Commodity risk Contagion
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Price linkage between Chinese and international nonferrous metals commodity markets based on VAR-DCC-GARCH models 认领 引用 被引量：26
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作者 岳意定 刘笃池 徐珊 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2015年第3期1020-1026,共7页
Using VAR-DCC-GARCH model,the literature on commodity price was extended by exploring the co-movement between Chinese nonferrous metal prices and global nonferrous metal prices represented by the nonferrous metal pric... Using VAR-DCC-GARCH model,the literature on commodity price was extended by exploring the co-movement between Chinese nonferrous metal prices and global nonferrous metal prices represented by the nonferrous metal prices from London Metal Exchange(LME).The results show that LME nonferrous metals prices still have a greater impact on Chinese nonferrous metals prices.However,the impact of Chinese nonferrous metals prices on LME nonferrous metals prices is still weak except for lead price.The co-movement of nonferrous metal prices between LME and China presents hysteretic nature,and it lasts for 7-8trading days.Furthermore,the co-movement between LME nonferrous metals prices and Chinese nonferrous metals prices has the characteristics of time-varying,and the correlation of lead prices between LME and China is the more stable than all other nonferrous metals prices. 展开更多
关键词 price linkage nonferrous metals commodity prices Chinese metals commodity market LME co-movement VAR model DCC-GARCH model
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Exploring the Application of Blockchain and IoT Technology in Commodity Management 认领 引用
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作者 Zhangjun Jiang Xiaojian Zhu 《Journal of Electronic Research and Application》 2025年第2期133-139,共7页
This study provides a detailed analysis of the application of blockchain and Internet of Things(IoT)technologies in various aspects of commodity management,addressing issues such as information asymmetry,data security... This study provides a detailed analysis of the application of blockchain and Internet of Things(IoT)technologies in various aspects of commodity management,addressing issues such as information asymmetry,data security and privacy challenges,insufficient supply chain transparency,and difficulties in regulation.The study also explores the challenges and strategies associated with the implementation of these technologies.Through this analysis,the article aims to provide theoretical support and practical reference for improving the efficiency and quality of commodity management,thereby promoting the digital transformation of commodity management. 展开更多
关键词 Blockchain Internet of Things(IoT) Commodity management Pricing Supply chain
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From trash to treasure: Chemical recycling and upcycling of commodity plastic waste to fuels, high-valued chemicals and advanced materials 认领 引用 被引量：31
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作者 Fan Zhang Fang Wang +4 位作者 Xiangyue Wei Yang Yang Shimei Xu Dehui Deng Yu-Zhong Wang 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2022年第6期369-388,I0011,共20页
Of all the existing materials, plastics are no doubt among the most versatile ones. However, the extreme increases in plastic production as well as the difficulty of the material for degradation have led to a huge num... Of all the existing materials, plastics are no doubt among the most versatile ones. However, the extreme increases in plastic production as well as the difficulty of the material for degradation have led to a huge number of plastic wastes. Their recycling rate after disposal is less than 10%, resulting in a series of serious environmental and ecological problems as well as a significant waste of resources. Current recycling methods generally suffer from large energy consumption, the low utilization rate of recycled products with low added value, and produce other waste during the process. Here, we summarized recentlydeveloped chemical recycling ways on commodity plastics, especially new catalytic paths in production of fuels, high-valued chemicals and advanced materials from a single virgin or a mixture of plastic waste,which have emerged as promising ways to valorize waste plastics more economically and environmentally friendly. The new catalyst design criteria as well as innovative catalytic paths and technologies for plastic upcycling are highlighted. Beyond energy recovery by incineration, these approaches demonstrate how waste plastics can be a viable feedstock for energy use with the generation of clean H2, high-quality liquid fuels and materials for energy storage, and help inspiring more catalytic process on plastic upcycling to overcome the economical hurdle and building a circular plastic economy. 展开更多
关键词 Chemical recycling Upcycling Commodity plastic Sustainable development Catalytic path
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City Networks of Online Commodity Services in China:Empirical Analysis of Tmall Clothing and Electronic Retailers 认领 引用 被引量：10
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作者 XI Guangliang ZHEN Feng +1 位作者 HE Jinliao GONG Yanhao 《Chinese Geographical Science》 SCIE CSCD 2018年第2期231-246,共16页
City networks have been a critical topic in the fields of urban geography and regional economics. Numerous studies have explored city networks, focusing mainly on infrastructure and industrial networks. Unlike traditi... City networks have been a critical topic in the fields of urban geography and regional economics. Numerous studies have explored city networks, focusing mainly on infrastructure and industrial networks. Unlike traditional urban network of which the major measuring indexes are population sizes and entity industries, online commodity service networks could reflect well the influencing of emerging economies, especially the Internet economy, on city networks. This study analyzes and reveals structural features of China's city networks through online commodity services, providing the internet economic approach on city networks. Results indicate that the core cities of online commodity service networks are mainly concentrated in eastern coastal areas. In addition, spatial polarization and layer structure of network connections are obvious, descending from the centers in eastern China to peripheral cities in central and western China. Online commodity services of different cities show apparent differences and uncertainties in terms of specialization rates of international connection, which presents a tendency toward diversification. Online commodity service networks are not only associated with goods production, supply, and consumption in physical space but also reflect virtual information, capital, and technology flows, thus providing a new empirical approach for understanding city networks in information and internet economic age. 展开更多
关键词 city networks online commodity services intercity relationships specialization
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Do the RMB exchange rate and global commodity prices have asymmetric or symmetric effects on China’s stock prices? 认领 引用
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作者 Shaobo Long Mengxue Zhang +1 位作者 Keaobo Li Shuyu Wu 《Financial Innovation》 2021年第1期1030-1050,共21页
With the rapid expansion of the RMB exchange rate’s floating range,the effects of the RMB exchange rate and global commodity price changes on China’s stock prices are likely to increase.This study uses both auto reg... With the rapid expansion of the RMB exchange rate’s floating range,the effects of the RMB exchange rate and global commodity price changes on China’s stock prices are likely to increase.This study uses both auto regressive distributed lag(ARDL)and nonlinear ARDL(NARDL)approaches to explore the symmetric and asymmetric effects of the RMB exchange rate and global commodity prices on China’s stock prices.Our findings show that without considering the critical variable of global commodity prices,there is no cointegration relationship between the RMB exchange rate and China’s stock prices,and the coefficient of the RMB exchange rate is not statistically significant.However,when we introduce global commodity prices into the NARDL model,the result shows that the RMB exchange rate has a negative effect on China’s stock prices,that there indeed exists a long-run cointegration relationship among the RMB exchange rate,global commodity prices,and stock prices in the NARDL model,and that global commodity price changes have an asymmetric effect on China’s stock prices in the long run.Specifically,China’s stock prices are more sensitive to increases than decreases in global commodity prices.Thus,increases in global commodity prices cause China’s stock prices to decline sharply.In contrast,the same magnitude of decline in global commodity prices induces a smaller increase in China’s stock prices. 展开更多
关键词 RMB exchange rate Global commodity prices China’s stock prices Asymmetric effects
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Co‑movement of commodity price indexes and energy price index:a wavelet coherence approach 认领 引用
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作者 Dervis Kirikkaleli Hasan Gügö 《Financial Innovation》 2021年第1期323-340,共18页
This research sheds light on the causal link between commodity price indexes,i.e.,the Agricultural Raw Materials Price Index,Industry Input Price Index,Metal Price Index,and Energy Price Index,in the global market,usi... This research sheds light on the causal link between commodity price indexes,i.e.,the Agricultural Raw Materials Price Index,Industry Input Price Index,Metal Price Index,and Energy Price Index,in the global market,using wavelet coherence,Toda–Yamamoto causality,and gradual shift causality tests over the period 1992M1 to 2019M12.Findings from the wavelet power spectrum and partial wavelet coherence reveal that:(1)there was significant volatility in the Agricultural Raw Materials Price Index,Industry Input Price Index,Metal Price Index,and Energy Price Index between 2004 and 2014 at different frequencies;and(2)commodity price indexes significantly caused the energy price index at different time periods and frequencies.It is noteworthy that the outcomes of the Toda–Yamamoto causality and gradual-shift causality tests are in line with the results of wavelet coherence. 展开更多
关键词 Energy price Commodity price Wavelet coherence Causality
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Alternative techniques for forecasting mineral commodity prices 认领 引用 被引量：2
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作者 C.A.Tapia Cortez S.Saydam +1 位作者 J.Coulton C.Sammut 《International Journal of Mining Science and Technology》 SCIE EI CAS CSCD 2018年第2期309-322,共14页
Forecasting mineral commodity(MC) prices has been an important and difficult task traditionally addressed by econometric, stochastic-Gaussian and time series techniques. None of these techniques has proved suitable to... Forecasting mineral commodity(MC) prices has been an important and difficult task traditionally addressed by econometric, stochastic-Gaussian and time series techniques. None of these techniques has proved suitable to represent the dynamic behavior and time related nature of MC markets. Chaos theory(CT) and machine learning(ML) techniques are able to represent the temporal relationships of variables and their evolution has been used separately to better understand and represent MC markets. CT can determine a system's dynamics in the form of time delay and embedding dimension. However, this information has often been solely used to describe the system's behavior and not for forecasting.Compared to traditional techniques, ML has better performance for forecasting MC prices, due to its capacity for finding patterns governing the system's dynamics. However, the rational nature of economic problems increases concerns regarding the use of hidden patterns for forecasting. Therefore, it is uncertain if variables selected and hidden patterns found by ML can represent the economic rationality.Despite their refined features for representing system dynamics, the separate use of either CT or ML does not provide the expected realistic accuracy. By itself, neither CT nor ML are able to identify the main variables affecting systems, recognize the relation and influence of variables though time, and discover hidden patterns governing systems evolution simultaneously. This paper discusses the necessity to adapt and combine CT and ML to obtain a more realistic representation of MC market behavior to forecast long-term price trends. 展开更多
关键词 Price forecasting Mineral commodity Market dynamics Chaos theory Machine learning
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Evaluation of the impact of commodity price change on mine plan of underground mining 认领 引用 被引量：3
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作者 Salama Abubakary Nehring Micah Greberg Jenny 《International Journal of Mining Science and Technology》 EI CAS CSCD 2015年第3期375-382,共8页
Fluctuations in commodity prices should influence mining operations to continually update and adjust their mine plans in order to capture additional value under new market conditions. One of the adjustments is the cha... Fluctuations in commodity prices should influence mining operations to continually update and adjust their mine plans in order to capture additional value under new market conditions. One of the adjustments is the change in production sequencing. This paper seeks to present a method for quantifying the net present value(NPV) that may be directly attributed to the change in commodity prices. The evaluation is conducted across ten copper price scenarios. Discrete event simulation combined with mixed integer programming was used to attain a viable production strategy and to generate optimal mine plans. The analysis indicates that an increase in prices results in an increased in the NPV from$96.57M to $755.65M. In an environment where mining operations must be striving to gain as much value as possible from the rights to exploit a finite resource, it is not appropriate to keep operating under the same mine plan if commodity prices alter during the course of operations. 展开更多
关键词 Mine planning Underground mining Commodity price Discrete event simulation Mixed integer programming
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Research on Online Reviews Impact on Commodity Sales in B2C E-commerce 认领 引用
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作者 Wu Guo-dong 《Review of Global Academics》 2015年第2期553-557,共5页
The objective of this paper was to analyze the impact of online reviews on sales. Based on dual path model of commodity sales, an online reviews impact on the relationship between various factors, and then the theoret... The objective of this paper was to analyze the impact of online reviews on sales. Based on dual path model of commodity sales, an online reviews impact on the relationship between various factors, and then the theoretical hypothesis of each factor has been put forward in the model. As it is intuitive and strongly supported empirically, data including Chinese texts captured from Tmall.com was utilized, and then analyzed by SPSS and ROST CM6. Our empirical study on the reviews of Tmall.com indicated that the hypotheses are verified. 展开更多
关键词 Online Review Commodity Sales B2C E-commerce Influencing Factor StatisticalAnalysis
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Evaluating the exchange rate and commodity price nexus in Malaysia: evidence from the threshold cointegration approach 认领 引用 被引量：1
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作者 Shamaila Butt Suresh Ramakrishnan +1 位作者 Nanthakumar Loganathan Muhammad Ali Chohan 《Financial Innovation》 2020年第1期392-410,共19页
This paper examines the long-and short-run dynamics of asymmetric adjustment between the nominal exchange rate and commodity prices,namely oil,palm oil,rubber,and natural gas prices,in Malaysia using monthly data from... This paper examines the long-and short-run dynamics of asymmetric adjustment between the nominal exchange rate and commodity prices,namely oil,palm oil,rubber,and natural gas prices,in Malaysia using monthly data from January 1994 to December 2017.The relationship between exchange rate and each commodity price is examined in terms of Engle-Granger and threshold cointegrations.The estimated results provide evidence of long-run threshold cointegration and show that the adjustments towards the long-run equilibrium position are asymmetric in the short run.Furthermore,this study finds evidence of a unidirectional causal relationship running from the nominal exchange rate to oil price in the long and short run using a spectral frequency domain causality application.There is also empirical evidence of bidirectional causality between the nominal exchange rate and palm oil price,rubber price,and natural gas price in the long and short run.Overall,the findings have significant implications for the current debate on the future of primary commodities in Malaysia. 展开更多
关键词 Commodity prices Exchange rate Threshold cointegration
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Role of governance in creating a commodity hub: A comparative analysis 认领 引用 被引量：3
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作者 Haris M.P. Tao Jacqueline 《Natural Gas Industry B》 2016年第4期367-376,共10页
The body of work on natural gas hubs has been expanding rapidly in recent years,with most of the current work examining the creation of gas hubs focusing on either the European experience or the North American experie... The body of work on natural gas hubs has been expanding rapidly in recent years,with most of the current work examining the creation of gas hubs focusing on either the European experience or the North American experience.In this paper,we adopt a different perspective and place the focus on experience of hub building from other international commodities.We analyse three commodities-crude oil,iron ore and coal,and draw experience on the role of governance in development of hub based prices.In particular,we propose that the role of governance is different at different stages of the pricing transition to market based pricing.Governance could play an important role at the initial stage,building the relevant soft and physical infrastructure which facilitates the reaping of first mover advantage.As the market develops,private sector players may prefer less involvement of governance,which may distort markets.With market stabilization,governance should be focused on maintaining stable rules and regulation for private sector development,as well as monitoring for further changes in global trends.To facilitate the building of a benchmark price,the public sector should adopt a long-term and overarching view on industry growth. 展开更多
关键词 Commodity markets pricing Natural gas hubs Governance
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Analysis of commodity traceability service effects on the purchase behavior of consumers using an evolutionary game model 认领 引用 被引量：1
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作者 Jingyang Liu Shizhong Ai +1 位作者 Rong Du Cathal M.Brugha 《Data Science and Management》 2022年第4期175-186,共12页
Blockchain-based commodity traceability is an emerging technology developed in recent years;it plays a vital role in monitoring product quality and responding to product safety problems.Considering the perceived value... Blockchain-based commodity traceability is an emerging technology developed in recent years;it plays a vital role in monitoring product quality and responding to product safety problems.Considering the perceived value of product traceability for consumers and the cost of using blockchain technology,determining whether merchants adopt blockchain-based commodity traceability technology deserves attention.Based on the information asymmetry between consumers and merchants,this paper establishes a two-party evolutionary game model to understand whether merchants enable the commodity traceability function and whether consumers choose to be involved in the commodity traceability relationship based on the Foote,Cone,and Belding grid theory.The model explores the influence boundary of merchants enabling the commodity traceability function for consumers with different degrees of involvement in purchasing behavior.The results show that traceability cost,consumer involvement,commodity price,and the value-added traceability nature of different commodities affect the evolution results.These results indicate that businesses need to constantly reduce the cost of traceability to improve consumer involvement and the perceived value of commodity traceability.Businesses must identify consumers with different involvement levels,and commodities with different traceability levels should provide targeted services for consumers and commodities. 展开更多
关键词 Consumer involvement Blockchain-based commodity traceability Evolutionary game
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The volatility of returns from commodity futures:evidence from India 认领 引用
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作者 Isita Mukherjee Bhaskar Goswami 《Financial Innovation》 2017年第1期189-211,共23页
Background:This paper examines the pattern of the volatility of the daily return of select commodity futures in India and explores the extent to which the select commodity futures satisfy the Samuelson hypothesis.Meth... Background:This paper examines the pattern of the volatility of the daily return of select commodity futures in India and explores the extent to which the select commodity futures satisfy the Samuelson hypothesis.Methods:One commodity future from each group of futures is chosen for the analysis.The select commodities are potato,gold,crude oil,and mentha oil.The data are collected from MCX India over the period 2004–2012.This study uses several econometric techniques for the analysis.The GARCH model is introduced for examining the volatility of commodity futures.One of the key contributions of the paper is the use of theβterm of the GARCH model to address the Samuelson hypothesis.Result:The Samuelson hypothesis,when tested by daily returns and using standard deviation as a crude measure of volatility,is supported for gold futures only,as per the value ofβ(the GARCH effect).The values of the rolling standard deviation,used as a measure of the trend in the volatility of daily returns,exhibits a decreasing volatility trend for potato futures and an increasing volatility trend for gold futures in all contract cycles.The result of the GARCH(1,1)model suggests the presence of persistent volatility and the prevalence of long memory for the select commodity futures,except potato futures.Conclusions:The study sheds light on significant characteristics of the daily return volatility of the commodity futures under analysis.The results suggest the existence of a developed market for the gold and crude oil futures(with volatility clustering)and show that the maturity effect is only valid for the gold futures. 展开更多
关键词 Commodity futures Daily return Volatility Samuelson hypothesis GARCH
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PDMS项目阀门Commodity Code软件开发应用 认领 引用
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作者 邹培轩 《化工设计》 CAS 2023年第4期28-31,1,共4页
本文主要介绍利用PDMS内置PML编程语言进行阀门Commodity Code开发的思路及程序应用效果。
关键词 阀门 PDMS PML Commodity Code
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Comprehensive Evaluation on the Regional Economy of Commodity Grain Base in Heilongjiang Province Based on Factor Analysis Method 认领 引用
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作者 SHEN Lei-ming XU Mei +1 位作者 WANG Fu-lin ZHANG Hao 《Asian Agricultural Research》 2010年第6期25-28,共4页
Taking a total of 13 areas in Heilongjiang commodity grain base as the research objects,9 indices are selected,which are regional GDP(X1),per capita GDP(X2),total value of tertiary industry(X3),financial revenue(X4),u... Taking a total of 13 areas in Heilongjiang commodity grain base as the research objects,9 indices are selected,which are regional GDP(X1),per capita GDP(X2),total value of tertiary industry(X3),financial revenue(X4),urban fixed assets investment(X5),average salary(X6),gross industrial output value(X7),total output value of farming,forestry,husbandry and fishing(X8),and retail sales of social consumer goods(X9).Based on this,evaluation index system of regional economy is established.According to the 2006-2008 Heilongjiang Statistical Yearbook,average values within 3 years are used as analytical data.Factor Analysis Method is adopted to establish regression model and to carry out comprehensive analysis.Result shows that Heilongjiang commodity grain base has extremely uneven regional economic development in different areas.According to the score order and actual situation,the 13 areas are divided into 4 types.The first and second types are Harbin and Daqing,respectively.The third type is Qiqihaer,Suihua,Mudanjiang and Jiamusi.And the forth type is Jixi,Shuangyashan,Heihe,Yichun,Qitaihe,Hegang and Daxinganling.Suggestions for the development of these areas are put forward. 展开更多
关键词 Heilongjiang commodity grain base Factor Analysis Method Regional economy Comprehensive evaluation China
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Structural Upgrade of China's Commodity Trade during 1987-2014 认领 引用
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作者 Liu Zuanshi Zhang Juan 《中国经济学人（中英文）》 2018年第5期99-115,共17页
This paper investigates the structural upgrade of China's commodity trade over the past two decades from the perspectives of commodity categories, technical value-added and quality level. Based on the analysis of ... This paper investigates the structural upgrade of China's commodity trade over the past two decades from the perspectives of commodity categories, technical value-added and quality level. Based on the analysis of commodity categories, technical value-added and quality, this paper arrives at the following findings: High technology manufactures accounted for a growing share of China's commodity export, the overall technical level of Chinese exports significantly upgraded, and most of Chinese commodities upgraded from low quality to medium-and high-quality levels. As can be seen from the structure of China's bilateral trade with its five major trading partners, China's exporting goods remained inferior to importing goods in terms of technology and quality despite their quality upgrades. 展开更多
关键词 trade structure commodity categories technical level quality level
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Commodity Market and Financial Derivative Instruments: Is There a Cointegration? 认领 引用
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作者 Maria Leone Alberto Manelli Roberta Pace 《Journal of Modern Accounting and Auditing》 2019年第4期185-203,共19页
Over the past decade, agricultural commodity prices underwent wild swings, Periods of high growth in 2008 were followed by periods of sudden decrease in 2009, The excessive increase in food price volatility is a subje... Over the past decade, agricultural commodity prices underwent wild swings, Periods of high growth in 2008 were followed by periods of sudden decrease in 2009, The excessive increase in food price volatility is a subject of great interest because it has to do with the survival of mankind, Recent academic studies and policy makers have reached sharply different conclusions about the dynamics of such fluctuations, Also, some of them have indicated the main cause in speculative transactions and in the little regulation of futures markets, This paper intends to verify if there exists a co-implication between wheat futures price and some financial “speculative” variables, The results of cointegration analysis show that there is no evidence that financial derivative instruments determine the fluctuations of wheat futures price. 展开更多
关键词 financial market commodity market speculation GARCH model
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