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economic
An economic example is analyzed to illustrate results here.
      
By numerical analysis, the fertility decreases with the per capita capital and per capita consumption increasing and increases with the per capita capital and per capita consumption decreasing on the economic growth path are obtained.
      
Research on a dynamical macro-economic model based on Sidrauski model
      
This paper formulates a kind of dynamical macro-economic model based on Sidrauski's work, then presents the sufficient and necessary conditions of the stability of model at equilibrium states, and shows some results for special production functions.
      
The economic implication of the derived condition is briefly discussed.
      
The dynamic input-output model is well known in economic theory and practice.
      
This paper investigates the effects of postponing retirement on economic growth in an aging society by using the infinite overlapping generations model constructed by Blanchard (1985) in a simple endogenous growth framework.
      
It shows that postponing retirement may decelerate economic growth.
      
An urban economic growth model with endogenous infrastructure allocation
      
In this paper, an urban economic growth model with endogenous infrastructure allocation is given by introducing the two-variable utility function for city's inhabitant.
      
The study also showed that intercropping with watermelon and vegetables proved to have the highest economic return among the treatments adopted.
      
Tree crop intercropping in young plantations is an effective measure to increase forest growth and economic benefit.
      
Using principles of ecosystem health quantitative assessment and diagnosis index selection, 17 factors were considered from three aspects: resource and environmental capacity, social and economic impact, and ecological services.
      
At the same time, obstacles and advantages to the watershed ecosystem health were studied by introducing the concepts of obstacle degree and advantage, and path analysis method, considering the real economic optimal level as the uppermost goal.
      
In recent decades, the system of successive plantation of Chinese fir has been widely used in southern China due to anticipated high economic return.
      
The economic performance and emission features of diesel engines using diesel fuel and bio-diesel fuel are compared.
      
In comparison with the conventional grind method, the process adopted appears to be economic and the exfoliated kaolinite end product may display a significantly enhanced performance in industrial applications.
      
The determination of operation optimization value is very important for economic analysis and operation optimization in power plants.
      
China has been experiencing fast economic development in recent decades at the cost of serious environmental deterioration.
      
The objective of this study is to carry out an economic, environmental and energy (EEE) life cycle study on natural gas-based automotive fuels with conventional gasoline in an abundant region of China.
      
 

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