China is transitioning its industrial structure from labor-and resource-intensive industries that previously contributed significantly to the country’s GDP growth to technology-intensive industries emphasizing a high...China is transitioning its industrial structure from labor-and resource-intensive industries that previously contributed significantly to the country’s GDP growth to technology-intensive industries emphasizing a highly-skilled workforce and sustainability to achieve high-quality economic growth.This paper examines the impact of the RMB exchange rate on high-quality economic growth through theoretical modeling and empirical analysis and discusses the variable of overseas education to explore the mechanism of how the RMB exchange rate and overseas education jointly impact high-quality economic growth.The research sample includes the National Bureau of Statistics data on education from 1995 to 2015,the Bank for International Settlements(BIS)data on the RMB exchange rate,and the added value of China’s high-quality economic growth estimated based on the national economy data.An empirical analysis of theoretical expectations was conducted,finding that RMB appreciation could make a positive contribution to China’s high-quality economic growth;RMB exchange rate fluctuations would impact the relative cost of overseas education and overseas returnees could have a positive impact on domestic resource utilization efficiency and domestic capacity to make sci-tech innovations,thereby injecting vitality to high-quality economic growth.This study focuses on both the RMB exchange rate and the population studying abroad,providing additional observation dimensions to existing research.展开更多
This paper has organized and summarized the economic analysis on climate change from five angles,namely,connotation of discount rate,identification of and dispute about discount rate,discounting way,impact of the disc...This paper has organized and summarized the economic analysis on climate change from five angles,namely,connotation of discount rate,identification of and dispute about discount rate,discounting way,impact of the discount rate,and the integrated evaluation model of climate change impact and the discount evaluation.As the climate change economic analysis shows,there is a major dispute about discount rate between the market school and the ethic school.Rate of discount largely relates to the present value of potential loss attributable to climate change,and then influences the selection of policies for adapting and slowing down climate change.In the past,the constant index discount was adopted as the main way.But with the full understanding of discount rate,the uncertainty of loss attributable to climate change has been considered in the discount.展开更多
Nitrogen rate trials are often performed to determine the economically optimum N application rate. For this purpose, the yield is modeled as a function of the N application. The regression analysis provides an estimat...Nitrogen rate trials are often performed to determine the economically optimum N application rate. For this purpose, the yield is modeled as a function of the N application. The regression analysis provides an estimate of the modeled function and thus also an estimate of the economic optimum, Nopt. Obtaining the accuracy of such estimates by confidence intervals for Nopt is subject to the model assumptions. The dependence of these assumptions is a further source of inaccuracy. The Nopt estimate also strongly depends on the N level design, i.e., the area on which the model is fitted. A small area around the supposed Nopt diminishes the dependence of the model assumptions, but prolongs the confidence interval. The investigations of the impact of the mentioned sources on the inaccuracy of the Nopt estimate rely on N rate trials on the experimental field Sieblerfeld (Bavaria). The models applied are the quadratic and the linear-plus-plateau yield regression model.展开更多
Background:Saving and investment are two of the most important tools for economic growth.The interest rate has always been considered an important determinant of saving and investment.However,according to Islamic teac...Background:Saving and investment are two of the most important tools for economic growth.The interest rate has always been considered an important determinant of saving and investment.However,according to Islamic teachings,riba or earning interest on saving or investment is forbidden,and thus,many Muslims try to avoid earning income from the interest rate.Therefore,the aim of this study is to assess the effects of this religious guideline on the financial decisions of an Islamic country’s population and its impact on saving and investment.Methods:We applied the random effect and system generalized method of moments(GMM)model separately to data of 17 non-Islamic and 17 Islamic countries from 2005 to 2013.Results:The results suggest that people in Islamic countries are not concerned about the interest rate on saving,but in non-Islamic countries,the interest rate,per capita income,and inflation have significant positive impacts,and national expenditure has a significant negative impact on saving.However,in Islamic countries,remittances received and national expenditure have negative significant impacts,and per capita income has a positive significant impact on saving.In the case of investment,interest rate and inflation show a negative effect on investment while trade affects investment positively in both Islamic and non-Islamic countries.Furthermore,domestic credit provided by banks has a negative significant effect on investment in non-Islamic countries,while in Islamic countries,remittances show a positive significant impact on investment.Conclusions:The governments and policy makers of Islamic countries should not imitate the economic policies of non-Islamic countries because religious factors play an important role in the interest rate-saving relationship.Instead,they should increase per capita income by improving employment conditions and by reducing remittances received and national expenditure.Policies on saving should not allow earning interest.Furthermore,in order to increase investment,efforts should be made to lower the interest rate and inflation,and to enhance remittances received and trade.These policies will increase saving and investment in Islamic countries,ultimately resulting in improved economic growth.展开更多
The use of balanced fertilizers in adequate amount is very important to increase crop productivity and production in Ethiopia. The study was executed to quantify maize (Zea mays L.) grain yield response to different r...The use of balanced fertilizers in adequate amount is very important to increase crop productivity and production in Ethiopia. The study was executed to quantify maize (Zea mays L.) grain yield response to different rates of nitrogen (N), phosphorus (P), potassium (K) and sulfur (S) under balanced fertilization of other nutrients. On farm trials were conducted at seven sites on 8 farmers’ fields in Negele Arsi districts, west Arsi zone of Oromia region for three consecutive cropping seasons (2014-2016). Six rates of N, P, S and eight rates of K treatments established separately for each nutrient were laid out in randomized complete block (RCB) design with three replicates per farm. Nutrient response function modelling showed that 184, 20 and 80 kg•ha<sup>−1</sup> were the agronomic optimum rate for N, P, and K, respectively. Mean agronomic efficiency (AE) of N, P and K were recorded at the lower rates of these nutrients, application of 46, 10 and 20 kg•ha<sup>−1</sup> N, P and K resulted in 19.1, 61.0, and 24 kg additional grain yield•kg<sup>−1</sup> N, P and K, respectively. Also, the mean partial factor productivity (PFP) of N, P and K were 77.6, 370 and 158 kg additional grain•kg<sup>−1</sup> applied N, P and K respectively. Economically optimal rate (EOR) of N, P and K were 48 - 114 kg•ha<sup>−1</sup> N with CP 8 - 3.5, 12 - 20 kg•ha<sup>−1</sup> P with CP 18 - 4.5 and 32 - 53 kg•ha<sup>−1</sup> K with CP 8-4, from these rates net returns of US$487.23 - 143.30, US$698.16 - 498.3 and US$359.31 - 193.63 could be obtained respectively. To conclude, application of 84, 12 and 40 kg•ha<sup>−1 </sup>N, P and K could be recommended for the production of maize.展开更多
Studies on the relationship between corporate real estate(CRE)and economic cycles are very thin,especially from developing countries,such as South Africa.More,in practice,most firms hardly dedicate enough resources to...Studies on the relationship between corporate real estate(CRE)and economic cycles are very thin,especially from developing countries,such as South Africa.More,in practice,most firms hardly dedicate enough resources to CRE divisions.This leads to that management not fully maximises the wealth of shareholders.This study uses multi-linear regression to test how GDP,interest rate,and total corporate costs react to changes in CRE.The sample is made up of blue chip firms listed on the Johannesburg Stock Exchange(JSE).The results reveal mixed bag solutions-for certain firms;GDP,interest rate,and corporate costs are statistically significant and vice versa.More,this analysis can be replicated to other similar industries and indices around the world.展开更多
This study analyzes the interaction between non-regular employment of women and economic growth patterns by an overlapping-generations model.Declining Birthrate White Paper-Cabinet Office(2013)shows the ideal number o...This study analyzes the interaction between non-regular employment of women and economic growth patterns by an overlapping-generations model.Declining Birthrate White Paper-Cabinet Office(2013)shows the ideal number of children per household is 2.42 compared to the current number of 2.07,which is the lowest so far in Japan.The main reason households do not have the ideal number of children is“the costs burden of childcare and education”and the ratio amounts to 60.4%.In recent years in Japan,households in which both the husband and the wife work are increasing,whereas those in which only the husband works are decreasing.Additionally,although women have same educational background and abilities as men,most women become non-regular employees after marriage and childbirth,which reduces household income.In such a situation,raising the rate of pension insurance will be a big burden for the household and the declining birthrate may be caused by high levels of educational expenditure and pension insurance.The Japanese government has discussed raising the wages of non-regular employees.This paper finds that a rise in the wage rate of non-regular employment is needed under the public pension policy that raises the rate of pension insurance,and it must be at an adequate level.That is,there is a high risk that this policy will have a negative effect on Japan’s economic growth if an adequate level is not achieved.展开更多
On the basis of research conducted by Long and Plosser(1983),this paper carries out an in-depth analysis on the relationship between real interest rates,real wage,and macro-economy and economic structure by simulating...On the basis of research conducted by Long and Plosser(1983),this paper carries out an in-depth analysis on the relationship between real interest rates,real wage,and macro-economy and economic structure by simulating a dynamic stochastic general equilibrium(DSGE) model and comes to the following conclusions:(1) Increasing the level of real interest rates will expand the share of consumption in GDP,improve the macroeconomic structure,and promote steady economic development;(2) Increasing the level of real wages will enhance economic growth but will not change the economic structure of consumption and investments;(3) Increasing wages will enhance economic growth and expand its share in national income;(4) Increasing wages will not lower output level but will be favorable to the improvement of economic structure.Therefore,this paper argues for interest rates liberalization to achieve long-term,steady economic development in China.展开更多
Excessive use of N fertilizers(driven by high-yield goals)and its consequent environmental problems are becoming increasingly acute in agricultural systems.A 2-year field experiment was conducted to investigate the ef...Excessive use of N fertilizers(driven by high-yield goals)and its consequent environmental problems are becoming increasingly acute in agricultural systems.A 2-year field experiment was conducted to investigate the effects of three N application methods(application of solid granular urea once(OF)or twice(TF),application of solid granular urea mixed with controlled-release urea once(MF),and six N rates(0,60,120,180,240,and 300 kg N ha^(-1))on maize yield,economic benefits,N use efficiency,and soil N balance in the maize(Zea mays L.)film mulching system on the Loess Plateau,China.The grain yield and economic return of maize were significantly affected by the N rate and application method.Compared with the OF treatment,the MF treatment not only increased the maize yield(increased by 9.0-16.7%)but also improved the economic return(increased by 10.9-25.8%).The agronomic N use efficiency(NAE),N partial factor productivity(NPFP)and recovery N efficiency(NRE)were significantly improved by 19.3-66.7,9.0-16.7 and 40.2-71.5%,respectively,compared with the OF treatment.The economic optimal N rate(EONR)of the OF,TF,and MF was 145.6,147.2,and 144.9 kg ha^(-1) in 2019,and 206.4,186.4,and 146.0 kg ha^(-1) in 2020,respectively.The apparent soil N loss at EONR of the OF,TF,and MF were 97.1-100.5,78.5-79.3,and 50.5-68.1 kg ha^(-1),respectively.These results support MF as a one-time N application method for delivering high yields and economic benefits,with low N input requirements within film mulching spring maize system on the Loess Plateau.展开更多
文摘China is transitioning its industrial structure from labor-and resource-intensive industries that previously contributed significantly to the country’s GDP growth to technology-intensive industries emphasizing a highly-skilled workforce and sustainability to achieve high-quality economic growth.This paper examines the impact of the RMB exchange rate on high-quality economic growth through theoretical modeling and empirical analysis and discusses the variable of overseas education to explore the mechanism of how the RMB exchange rate and overseas education jointly impact high-quality economic growth.The research sample includes the National Bureau of Statistics data on education from 1995 to 2015,the Bank for International Settlements(BIS)data on the RMB exchange rate,and the added value of China’s high-quality economic growth estimated based on the national economy data.An empirical analysis of theoretical expectations was conducted,finding that RMB appreciation could make a positive contribution to China’s high-quality economic growth;RMB exchange rate fluctuations would impact the relative cost of overseas education and overseas returnees could have a positive impact on domestic resource utilization efficiency and domestic capacity to make sci-tech innovations,thereby injecting vitality to high-quality economic growth.This study focuses on both the RMB exchange rate and the population studying abroad,providing additional observation dimensions to existing research.
基金supported by NSFC National Outstanding Youth Science Foundation of China (Grant No.71103111)MOST Special Project of Innovative Methodology (Grant No.2012IM010300)Twelfth Five-Year National Science and Technology Support Program (Grant No.2012BAC20B01)
文摘This paper has organized and summarized the economic analysis on climate change from five angles,namely,connotation of discount rate,identification of and dispute about discount rate,discounting way,impact of the discount rate,and the integrated evaluation model of climate change impact and the discount evaluation.As the climate change economic analysis shows,there is a major dispute about discount rate between the market school and the ethic school.Rate of discount largely relates to the present value of potential loss attributable to climate change,and then influences the selection of policies for adapting and slowing down climate change.In the past,the constant index discount was adopted as the main way.But with the full understanding of discount rate,the uncertainty of loss attributable to climate change has been considered in the discount.
文摘Nitrogen rate trials are often performed to determine the economically optimum N application rate. For this purpose, the yield is modeled as a function of the N application. The regression analysis provides an estimate of the modeled function and thus also an estimate of the economic optimum, Nopt. Obtaining the accuracy of such estimates by confidence intervals for Nopt is subject to the model assumptions. The dependence of these assumptions is a further source of inaccuracy. The Nopt estimate also strongly depends on the N level design, i.e., the area on which the model is fitted. A small area around the supposed Nopt diminishes the dependence of the model assumptions, but prolongs the confidence interval. The investigations of the impact of the mentioned sources on the inaccuracy of the Nopt estimate rely on N rate trials on the experimental field Sieblerfeld (Bavaria). The models applied are the quadratic and the linear-plus-plateau yield regression model.
文摘Background:Saving and investment are two of the most important tools for economic growth.The interest rate has always been considered an important determinant of saving and investment.However,according to Islamic teachings,riba or earning interest on saving or investment is forbidden,and thus,many Muslims try to avoid earning income from the interest rate.Therefore,the aim of this study is to assess the effects of this religious guideline on the financial decisions of an Islamic country’s population and its impact on saving and investment.Methods:We applied the random effect and system generalized method of moments(GMM)model separately to data of 17 non-Islamic and 17 Islamic countries from 2005 to 2013.Results:The results suggest that people in Islamic countries are not concerned about the interest rate on saving,but in non-Islamic countries,the interest rate,per capita income,and inflation have significant positive impacts,and national expenditure has a significant negative impact on saving.However,in Islamic countries,remittances received and national expenditure have negative significant impacts,and per capita income has a positive significant impact on saving.In the case of investment,interest rate and inflation show a negative effect on investment while trade affects investment positively in both Islamic and non-Islamic countries.Furthermore,domestic credit provided by banks has a negative significant effect on investment in non-Islamic countries,while in Islamic countries,remittances show a positive significant impact on investment.Conclusions:The governments and policy makers of Islamic countries should not imitate the economic policies of non-Islamic countries because religious factors play an important role in the interest rate-saving relationship.Instead,they should increase per capita income by improving employment conditions and by reducing remittances received and national expenditure.Policies on saving should not allow earning interest.Furthermore,in order to increase investment,efforts should be made to lower the interest rate and inflation,and to enhance remittances received and trade.These policies will increase saving and investment in Islamic countries,ultimately resulting in improved economic growth.
文摘The use of balanced fertilizers in adequate amount is very important to increase crop productivity and production in Ethiopia. The study was executed to quantify maize (Zea mays L.) grain yield response to different rates of nitrogen (N), phosphorus (P), potassium (K) and sulfur (S) under balanced fertilization of other nutrients. On farm trials were conducted at seven sites on 8 farmers’ fields in Negele Arsi districts, west Arsi zone of Oromia region for three consecutive cropping seasons (2014-2016). Six rates of N, P, S and eight rates of K treatments established separately for each nutrient were laid out in randomized complete block (RCB) design with three replicates per farm. Nutrient response function modelling showed that 184, 20 and 80 kg•ha<sup>−1</sup> were the agronomic optimum rate for N, P, and K, respectively. Mean agronomic efficiency (AE) of N, P and K were recorded at the lower rates of these nutrients, application of 46, 10 and 20 kg•ha<sup>−1</sup> N, P and K resulted in 19.1, 61.0, and 24 kg additional grain yield•kg<sup>−1</sup> N, P and K, respectively. Also, the mean partial factor productivity (PFP) of N, P and K were 77.6, 370 and 158 kg additional grain•kg<sup>−1</sup> applied N, P and K respectively. Economically optimal rate (EOR) of N, P and K were 48 - 114 kg•ha<sup>−1</sup> N with CP 8 - 3.5, 12 - 20 kg•ha<sup>−1</sup> P with CP 18 - 4.5 and 32 - 53 kg•ha<sup>−1</sup> K with CP 8-4, from these rates net returns of US$487.23 - 143.30, US$698.16 - 498.3 and US$359.31 - 193.63 could be obtained respectively. To conclude, application of 84, 12 and 40 kg•ha<sup>−1 </sup>N, P and K could be recommended for the production of maize.
文摘Studies on the relationship between corporate real estate(CRE)and economic cycles are very thin,especially from developing countries,such as South Africa.More,in practice,most firms hardly dedicate enough resources to CRE divisions.This leads to that management not fully maximises the wealth of shareholders.This study uses multi-linear regression to test how GDP,interest rate,and total corporate costs react to changes in CRE.The sample is made up of blue chip firms listed on the Johannesburg Stock Exchange(JSE).The results reveal mixed bag solutions-for certain firms;GDP,interest rate,and corporate costs are statistically significant and vice versa.More,this analysis can be replicated to other similar industries and indices around the world.
文摘This study analyzes the interaction between non-regular employment of women and economic growth patterns by an overlapping-generations model.Declining Birthrate White Paper-Cabinet Office(2013)shows the ideal number of children per household is 2.42 compared to the current number of 2.07,which is the lowest so far in Japan.The main reason households do not have the ideal number of children is“the costs burden of childcare and education”and the ratio amounts to 60.4%.In recent years in Japan,households in which both the husband and the wife work are increasing,whereas those in which only the husband works are decreasing.Additionally,although women have same educational background and abilities as men,most women become non-regular employees after marriage and childbirth,which reduces household income.In such a situation,raising the rate of pension insurance will be a big burden for the household and the declining birthrate may be caused by high levels of educational expenditure and pension insurance.The Japanese government has discussed raising the wages of non-regular employees.This paper finds that a rise in the wage rate of non-regular employment is needed under the public pension policy that raises the rate of pension insurance,and it must be at an adequate level.That is,there is a high risk that this policy will have a negative effect on Japan’s economic growth if an adequate level is not achieved.
文摘On the basis of research conducted by Long and Plosser(1983),this paper carries out an in-depth analysis on the relationship between real interest rates,real wage,and macro-economy and economic structure by simulating a dynamic stochastic general equilibrium(DSGE) model and comes to the following conclusions:(1) Increasing the level of real interest rates will expand the share of consumption in GDP,improve the macroeconomic structure,and promote steady economic development;(2) Increasing the level of real wages will enhance economic growth but will not change the economic structure of consumption and investments;(3) Increasing wages will enhance economic growth and expand its share in national income;(4) Increasing wages will not lower output level but will be favorable to the improvement of economic structure.Therefore,this paper argues for interest rates liberalization to achieve long-term,steady economic development in China.
基金financially supported by the National Key R&D Program of China (2022YFD1900702 and 2021YFD1900700)the Key Research and Development Program of Shaanxi, China (2023-ZDLNY-52)the National Natural Science Foundation of China (42077102)
文摘Excessive use of N fertilizers(driven by high-yield goals)and its consequent environmental problems are becoming increasingly acute in agricultural systems.A 2-year field experiment was conducted to investigate the effects of three N application methods(application of solid granular urea once(OF)or twice(TF),application of solid granular urea mixed with controlled-release urea once(MF),and six N rates(0,60,120,180,240,and 300 kg N ha^(-1))on maize yield,economic benefits,N use efficiency,and soil N balance in the maize(Zea mays L.)film mulching system on the Loess Plateau,China.The grain yield and economic return of maize were significantly affected by the N rate and application method.Compared with the OF treatment,the MF treatment not only increased the maize yield(increased by 9.0-16.7%)but also improved the economic return(increased by 10.9-25.8%).The agronomic N use efficiency(NAE),N partial factor productivity(NPFP)and recovery N efficiency(NRE)were significantly improved by 19.3-66.7,9.0-16.7 and 40.2-71.5%,respectively,compared with the OF treatment.The economic optimal N rate(EONR)of the OF,TF,and MF was 145.6,147.2,and 144.9 kg ha^(-1) in 2019,and 206.4,186.4,and 146.0 kg ha^(-1) in 2020,respectively.The apparent soil N loss at EONR of the OF,TF,and MF were 97.1-100.5,78.5-79.3,and 50.5-68.1 kg ha^(-1),respectively.These results support MF as a one-time N application method for delivering high yields and economic benefits,with low N input requirements within film mulching spring maize system on the Loess Plateau.