Scale pig production is an effective approach to improve farmers＇ income. Many pig feeding villages and intensive pig farms has presented rapidly in Center China in recent years, the focus of large quantity of manure...Scale pig production is an effective approach to improve farmers＇ income. Many pig feeding villages and intensive pig farms has presented rapidly in Center China in recent years, the focus of large quantity of manure and sewage discharged by pig farms has become the leading source of pollution in vast rural areas. How to dissolve the contravention between the development of scale pig production and the serious pollution caused by swine excreta in rural area is a complex systematic problem. An approach named Systems Dynamic Digraph Analysis Approach is presented in this paper. And the approach is applied to analyze the scale pig breeding system in small hill watershed area systematically. A case of Pingxiang Taihua pig farm in the west region of Jinggang Mountain, which is a typical intensive pig farm in small hill watershed area in Center China, was studied, after the systematical analyses with its system dynamic digraph, three common management policies are presented at the end of the paper.展开更多
This article examines the public revenue and expenditure patterns and its nexus of a few countries.This paper employs panel unit root,panel cointegration and Vector Error Correction Model to analyze the inter-temporal...This article examines the public revenue and expenditure patterns and its nexus of a few countries.This paper employs panel unit root,panel cointegration and Vector Error Correction Model to analyze the inter-temporal association among the variables of government revenues,expenditures and the growth of GDP through the panel data of ten divergent nations over the period 2001 to 2017.The study exercised three cointegration tests and these estimates find the evidence of long run association among articulated three variables.To know the cross-section status of different nations this paper diverted Phillips-Peron test with bandwidth statistics and it asserted that,all ten countries secured the long run association among the variables.The study uncovered that,growth of GDP has escalated in 0.78%by one percentage increase in revenue expenditure;meanwhile,1.41%lessening in GDP growth by one percentage increase in revenue income.The specified model is supported by a few diagnostic tests.展开更多
基金The research is supported by National Natural Science Foundation of China（70361002）.
文摘Scale pig production is an effective approach to improve farmers＇ income. Many pig feeding villages and intensive pig farms has presented rapidly in Center China in recent years, the focus of large quantity of manure and sewage discharged by pig farms has become the leading source of pollution in vast rural areas. How to dissolve the contravention between the development of scale pig production and the serious pollution caused by swine excreta in rural area is a complex systematic problem. An approach named Systems Dynamic Digraph Analysis Approach is presented in this paper. And the approach is applied to analyze the scale pig breeding system in small hill watershed area systematically. A case of Pingxiang Taihua pig farm in the west region of Jinggang Mountain, which is a typical intensive pig farm in small hill watershed area in Center China, was studied, after the systematical analyses with its system dynamic digraph, three common management policies are presented at the end of the paper.
文摘This article examines the public revenue and expenditure patterns and its nexus of a few countries.This paper employs panel unit root,panel cointegration and Vector Error Correction Model to analyze the inter-temporal association among the variables of government revenues,expenditures and the growth of GDP through the panel data of ten divergent nations over the period 2001 to 2017.The study exercised three cointegration tests and these estimates find the evidence of long run association among articulated three variables.To know the cross-section status of different nations this paper diverted Phillips-Peron test with bandwidth statistics and it asserted that,all ten countries secured the long run association among the variables.The study uncovered that,growth of GDP has escalated in 0.78%by one percentage increase in revenue expenditure;meanwhile,1.41%lessening in GDP growth by one percentage increase in revenue income.The specified model is supported by a few diagnostic tests.
