To make grain price stable is an important goal for the Chinese government. The paper compared the grain supply elasticity and demand elasticity to determine the grain price stability in China; used "k value" method...To make grain price stable is an important goal for the Chinese government. The paper compared the grain supply elasticity and demand elasticity to determine the grain price stability in China; used "k value" method to analyze the grain price fluctuation from 1985 to 2010; divided the grain price volatility into three stages; and analyzed the factors in each phase. On the base, it put forward some countermeasures to guarantee the stability of the grain price.展开更多
As critical piece of China's gradualist economic transition, domestic price reform still faces major challenges. In particular, factor price, which is still tightlycontrolled and not market-based, is lower than marke...As critical piece of China's gradualist economic transition, domestic price reform still faces major challenges. In particular, factor price, which is still tightlycontrolled and not market-based, is lower than market equilibrium price. Factor price distortion not only reduces market efficiency but also affects wealth distribution. Subsequent wealth transfer has, over the past ten to fifieen years, created a powerful vested interests and spawned social resentment, both of which may constitute major hazards in China's future reform and development. Keeping in mind that China will have to address factor price distortion in its next step of reform, this paper takes stock of China's journey toward price rejorm; examines the relationship among factor price distortion, previous economic growth, and policy; and estimates' the size of resulting wealth transfer.展开更多
Price volatility analysis is a basic problem in the price modification,financial risk estimation and management process.Among the global commodities,oil plays an important role in the development of modern industry an...Price volatility analysis is a basic problem in the price modification,financial risk estimation and management process.Among the global commodities,oil plays an important role in the development of modern industry and economy.Hence the price of crude oil analysis is a hot topic.It is also a difficult topic since there are so many factors associating the price volatilities.And some factors give the different influences in the different periods.Based on data computing,people generally classify the factors into positive and negative ones.But some factors do not affect the price as the nominal effect.For instance,the output of OPEC gave the positive contributions to the oil price in the past long time.Hence,the investigation of the historic WTI oil price is well proposed and the factors are classified into active and passive ones.And then the better explanations are given using this type of classification.展开更多
Regular and available supply is the prerequisite of an effective and efficient commercialization process. Using multivariate regression analysis on field data, this research appraises the production and marketing fact...Regular and available supply is the prerequisite of an effective and efficient commercialization process. Using multivariate regression analysis on field data, this research appraises the production and marketing factors that influence cassava market price. The production factors include cultivated area, planting material, yield, and farmers’ field schools;while farmers access to a paved road, having a telephone, the transportation costs of fresh roots, the level of root perishability, and the prices of rice and maize stand as marketing factors. The results show that farmers who attended farmers’ field school adopted improved planting materials, propagated them in their localities and the yields in these communities increased significantly. The farm size also has a significant influence on the availability of fresh roots. On the marketing side, transportation costs, access to a paved road, the prices of rice and maize significantly affect cassava’s market price and tighten the relationship between producers and marketers. We conclude that to increase fresh roots supply, roads leading to cultivating areas should be paved, better transportation provided, communication costs reduced, even distribution of planting materials and appropriate warehouses.展开更多
Real-time electricity price( RTEP) influence factor extraction is essential to forecasting accurate power system electricity prices. At present,new electricity price forecasting models have been studied to improve pre...Real-time electricity price( RTEP) influence factor extraction is essential to forecasting accurate power system electricity prices. At present,new electricity price forecasting models have been studied to improve predictive accuracy,ignoring the extraction and analysis of RTEP influence factors. In this study,a correlation analysis method is proposed based on stochastic matrix theory.Firstly, an augmented matrix is formulated, including RTEP influence factor data and RTEP state data. Secondly, data correlation analysis results are obtained given the statistical characteristics of source data based on stochastic matrix theory.Mean spectral radius( MSR) is used as the measure of correlativity.Finally,the proposed method is evaluated in New England electricity markets and compared with the BP neural network forecasting method. Experimental results show that the extracted index system comprehensively generalizes RTEP influence factors,which play a significant role in improving RTEP forecasting accuracy.展开更多
基金Supported by the National Natural Science Foundation Project (71173035)the National Soft Science Research Plan (2010GXQ5D330)the Plan for Key Teachers of Heilongjiang Province (GC10D206)
文摘To make grain price stable is an important goal for the Chinese government. The paper compared the grain supply elasticity and demand elasticity to determine the grain price stability in China; used "k value" method to analyze the grain price fluctuation from 1985 to 2010; divided the grain price volatility into three stages; and analyzed the factors in each phase. On the base, it put forward some countermeasures to guarantee the stability of the grain price.
文摘As critical piece of China's gradualist economic transition, domestic price reform still faces major challenges. In particular, factor price, which is still tightlycontrolled and not market-based, is lower than market equilibrium price. Factor price distortion not only reduces market efficiency but also affects wealth distribution. Subsequent wealth transfer has, over the past ten to fifieen years, created a powerful vested interests and spawned social resentment, both of which may constitute major hazards in China's future reform and development. Keeping in mind that China will have to address factor price distortion in its next step of reform, this paper takes stock of China's journey toward price rejorm; examines the relationship among factor price distortion, previous economic growth, and policy; and estimates' the size of resulting wealth transfer.
文摘Price volatility analysis is a basic problem in the price modification,financial risk estimation and management process.Among the global commodities,oil plays an important role in the development of modern industry and economy.Hence the price of crude oil analysis is a hot topic.It is also a difficult topic since there are so many factors associating the price volatilities.And some factors give the different influences in the different periods.Based on data computing,people generally classify the factors into positive and negative ones.But some factors do not affect the price as the nominal effect.For instance,the output of OPEC gave the positive contributions to the oil price in the past long time.Hence,the investigation of the historic WTI oil price is well proposed and the factors are classified into active and passive ones.And then the better explanations are given using this type of classification.
文摘Regular and available supply is the prerequisite of an effective and efficient commercialization process. Using multivariate regression analysis on field data, this research appraises the production and marketing factors that influence cassava market price. The production factors include cultivated area, planting material, yield, and farmers’ field schools;while farmers access to a paved road, having a telephone, the transportation costs of fresh roots, the level of root perishability, and the prices of rice and maize stand as marketing factors. The results show that farmers who attended farmers’ field school adopted improved planting materials, propagated them in their localities and the yields in these communities increased significantly. The farm size also has a significant influence on the availability of fresh roots. On the marketing side, transportation costs, access to a paved road, the prices of rice and maize significantly affect cassava’s market price and tighten the relationship between producers and marketers. We conclude that to increase fresh roots supply, roads leading to cultivating areas should be paved, better transportation provided, communication costs reduced, even distribution of planting materials and appropriate warehouses.
基金National Natural Science Foundation of China(No.61701104)the “13th Five Year Plan” Research Foundation of Jilin Provincial Department of Education,China(No.JJKH2017018KJ)
文摘Real-time electricity price( RTEP) influence factor extraction is essential to forecasting accurate power system electricity prices. At present,new electricity price forecasting models have been studied to improve predictive accuracy,ignoring the extraction and analysis of RTEP influence factors. In this study,a correlation analysis method is proposed based on stochastic matrix theory.Firstly, an augmented matrix is formulated, including RTEP influence factor data and RTEP state data. Secondly, data correlation analysis results are obtained given the statistical characteristics of source data based on stochastic matrix theory.Mean spectral radius( MSR) is used as the measure of correlativity.Finally,the proposed method is evaluated in New England electricity markets and compared with the BP neural network forecasting method. Experimental results show that the extracted index system comprehensively generalizes RTEP influence factors,which play a significant role in improving RTEP forecasting accuracy.