Objective To study the possible relationship between the output of new products in China’s pharmaceutical industry and the investment in research and development(R&D),and to provide a theoretical basis for the de...Objective To study the possible relationship between the output of new products in China’s pharmaceutical industry and the investment in research and development(R&D),and to provide a theoretical basis for the decision-making of relevant enterprises and institutions.Methods The econometric software Stata 14 was used to perform unit root test on the relevant data.Then,a co-integration regression equation was established after stabilization,which was analyzed through co-integration test(E-G two-step method).Results and Conclusion There is a long-term equilibrium and short-term error correction relationship between the output of new products and the investment of R&D funds in China’s pharmaceutical industry.During the lagging periods from 1 to 6,R&D investment is the Granger reason for the output of new products.The investment of R&D funds has a positive effect on the output of new products and the effect is significant.Therefore,more investment should be made in R&D to enhance the output of new products.展开更多
This paper made an empirical analysis of China＇s agricultural growth path and influential factors using the province-level panel data of agricultural inputs and outputs during 1985-2010.The findings indicate that the...This paper made an empirical analysis of China＇s agricultural growth path and influential factors using the province-level panel data of agricultural inputs and outputs during 1985-2010.The findings indicate that the increase in agricultural inputs and TFP contributed 40.6 and 55.2% to the agricultural output growth,respectively;China＇s agriculture had jumped out of the pattern which output growth was mainly driven by increasing input.Of the total inputs,chemical fertilizer had the most important contribution to the output growth,followed by mechanical inputs.The contribution of land and labor was negative.China＇s agricultural output growth belonged to the type of induced technology innovation.China＇s agricultural TFP growth had characteristics of fluctuations over time and unbalanced between regions,but the gap between the eastern,the middle,and the western regions has been narrowed.展开更多
Wood products provide a relatively long-term carbon storage mechanism.Due to lack of consistent datasets on these products,however,it is difficult to determine their carbon contents.The main purpose of this study was ...Wood products provide a relatively long-term carbon storage mechanism.Due to lack of consistent datasets on these products,however,it is difficult to determine their carbon contents.The main purpose of this study was to quantify forest disturbance and timber product output(TPO)using time series Landsat observations for North Carolina.The results revealed that North Carolina had an average forest disturbance rate of 178,000 ha per year from 1985 to 2010.The derived disturbance products were found to be highly correlated with TPO survey data,explaining up to 87%of the total variance of county level industrial roundwood production.State level TPO estimates derived using the Landsat-based disturbance products tracked those derived from ground-based survey data closely.The TPO modeling approach developed in this study complements the ground-based TPO surveys conducted by the US Forest Service.It allows derivation of TPO estimates for the years that did not have TPO survey data,and may be applicable in other regions or countries where at least some ground-based survey data on timber production are available for model development and dense time series Landsat observations exist for developing annual forest disturbance products.展开更多
ＴｈｅＯｕｔｐｕｔｏｆＭａｊｏｒＦａｒｍＰｒｏｄｕｃｔｓａｎｄＧｒｏｗｔｈＲａｔｅ ｉｎ１９９５ＳｔａｔｅＳｔａｔｉｓｔｉｃａｌＢｕｒｅａｕＳｏｕｒｃｅ：ＳｔａｔｅＳｔａｔｉｓｔｉｃａｌＢｕｒｅａｕ．The Output of Maj...ＴｈｅＯｕｔｐｕｔｏｆＭａｊｏｒＦａｒｍＰｒｏｄｕｃｔｓａｎｄＧｒｏｗｔｈＲａｔｅ ｉｎ１９９５ＳｔａｔｅＳｔａｔｉｓｔｉｃａｌＢｕｒｅａｕＳｏｕｒｃｅ：ＳｔａｔｅＳｔａｔｉｓｔｉｃａｌＢｕｒｅａｕ．The Output of Major Farm Products and Growth Rate...展开更多
This paper analyzes the correlativity between new products output and science ＆ technology resources input by the method of Gray Relevancy model, and finds that the spending for new products has greatest correlativit...This paper analyzes the correlativity between new products output and science ＆ technology resources input by the method of Gray Relevancy model, and finds that the spending for new products has greatest correlativity with new products output in large and medium sized state-owned industrial enterprises.展开更多
基金Research on Innovation and Development Strategy of Pharmaceutical Industry in Liaoning Province(2020lslktyb-095).
文摘Objective To study the possible relationship between the output of new products in China’s pharmaceutical industry and the investment in research and development(R&D),and to provide a theoretical basis for the decision-making of relevant enterprises and institutions.Methods The econometric software Stata 14 was used to perform unit root test on the relevant data.Then,a co-integration regression equation was established after stabilization,which was analyzed through co-integration test(E-G two-step method).Results and Conclusion There is a long-term equilibrium and short-term error correction relationship between the output of new products and the investment of R&D funds in China’s pharmaceutical industry.During the lagging periods from 1 to 6,R&D investment is the Granger reason for the output of new products.The investment of R&D funds has a positive effect on the output of new products and the effect is significant.Therefore,more investment should be made in R&D to enhance the output of new products.
基金supported by the Projects of National Survey of CASS (Survey of Grain Production in China)
文摘This paper made an empirical analysis of China＇s agricultural growth path and influential factors using the province-level panel data of agricultural inputs and outputs during 1985-2010.The findings indicate that the increase in agricultural inputs and TFP contributed 40.6 and 55.2% to the agricultural output growth,respectively;China＇s agriculture had jumped out of the pattern which output growth was mainly driven by increasing input.Of the total inputs,chemical fertilizer had the most important contribution to the output growth,followed by mechanical inputs.The contribution of land and labor was negative.China＇s agricultural output growth belonged to the type of induced technology innovation.China＇s agricultural TFP growth had characteristics of fluctuations over time and unbalanced between regions,but the gap between the eastern,the middle,and the western regions has been narrowed.
基金This study contributes to the North American Carbon Program,with grant support from NASA’s Land Cover and Land Use Change,Terrestrial Ecology,Carbon Cycle Science,and Applied Sciences Programs.Additional support was provided by the US Geological Survey and USDA Forest Service.
文摘Wood products provide a relatively long-term carbon storage mechanism.Due to lack of consistent datasets on these products,however,it is difficult to determine their carbon contents.The main purpose of this study was to quantify forest disturbance and timber product output(TPO)using time series Landsat observations for North Carolina.The results revealed that North Carolina had an average forest disturbance rate of 178,000 ha per year from 1985 to 2010.The derived disturbance products were found to be highly correlated with TPO survey data,explaining up to 87%of the total variance of county level industrial roundwood production.State level TPO estimates derived using the Landsat-based disturbance products tracked those derived from ground-based survey data closely.The TPO modeling approach developed in this study complements the ground-based TPO surveys conducted by the US Forest Service.It allows derivation of TPO estimates for the years that did not have TPO survey data,and may be applicable in other regions or countries where at least some ground-based survey data on timber production are available for model development and dense time series Landsat observations exist for developing annual forest disturbance products.
文摘ＴｈｅＯｕｔｐｕｔｏｆＭａｊｏｒＦａｒｍＰｒｏｄｕｃｔｓａｎｄＧｒｏｗｔｈＲａｔｅ ｉｎ１９９５ＳｔａｔｅＳｔａｔｉｓｔｉｃａｌＢｕｒｅａｕＳｏｕｒｃｅ：ＳｔａｔｅＳｔａｔｉｓｔｉｃａｌＢｕｒｅａｕ．The Output of Major Farm Products and Growth Rate...
文摘This paper analyzes the correlativity between new products output and science ＆ technology resources input by the method of Gray Relevancy model, and finds that the spending for new products has greatest correlativity with new products output in large and medium sized state-owned industrial enterprises.
