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According to the consumption of resources, environment and GDP, as well as the relationship among the three, this paper analyzes circular economy with the method of system dynamics. Firstly, the conception of green GDP is introduced, and the possibility of system dynamics is proven with the grey incidence analysis. Furthermore, the system dynamics model of circular economy with three different states...
As an important part of Protection of national energy security, most petro reserves has been widely attention by developed and emerging developing countries. It is the common practice in the economic and social development process for the Countries in the world to save fuel, improve the efficiency of petro, reduce excessive reliance of economic development on petro as far as possible. To demonstrate...
Based on autoregressive distributed lag model, this study examines the long-run relationship between carbon intensity and energy efficiency, income level, coal price and industrial composition in the case of China by employing time series data of 1980-2007. The results show that there is a long-run equilibrium relationship and short-run adjusting relationship between China's carbon intensity and Per...
It is significant for scientific and rational decision-making method of coal resources development investment (for short CRDI) to evaluate reasonably the value of coal resources investment, to make the best coal resources investment program, and to timely manage the risks and flexibility in investment process. On the basis of analyzing the option characteristics of CRDI, CRDI could be regarded as...
A verification model of coal price (VEC) is established by using cointegration analysis method in this article, and an empirical study is carried on the corresponding statistics from the year 1985 to 2008. It shows that the main factors affecting coal prices are the output value of industry, GNP, retail price index, coal cost and coal supply. Considering the factors, the proposed verification model...
The selection of Client is the key point of the operation in port, select an excellent client will make the use of resource more reasonable, and increase the benefit of port. A system of evaluation and selection indexes for coal client selection is put forward based on the fact of Qinhuangdao Port Group, and establish a model of the selection of coal client, then use rough sets extract the decision-making...
Economic security has been a serious problem which threatens and hampers the sustainable growth of the economy. The paper sets up appraising indicator system of economic security on the basis of PSR model, and researches economic security for 21 coal cities by using BP artificial neural net. As innovation of researching economic security, BP artificial neural net has the better ability in level identification,...
On base of analyzing the situation of recycling economy of coal enterprises and establishing the principle of indication system, an evaluation-index system was established, which included four levels structure (economy development, resource utilization, social development and recycling system) and twenty-two indications. According to comparing all kinds of methods of recycling economy, and considering...
In China, evaluating coal resources mining right (for short MRCR) scientifically and effectively is a key and precondition of acquiring and transferring it. MRCR has the same option-like characteristics as stock call option, which is a multi-period call option exercised annually, thus evaluation methods of MRCR based on option can reflect the option-like characteristics of MRCR. Previous researches...
In this paper, we calculate the coal efficient utilization ratio (CEUR) of 29 regions in China from 1995 to 2006, by applying data envelopment analysis (DEA) based on the regional own production frontier. And three inputs (labor, capital stock and coal utilization amount) and one output (GDP) are chosen for DEA. Results show that, the more developed area is, the higher CEUR is. The eastern, central...
Implementating land reclamation forms a pivotal point for ecological restoration in coal mining area. Based on the analysis of a collection of factors including investment, benefit, employment, production and living demand, this paper adopt linear programming technique to optimize the structures of land reclamation in Banji coal mining area, China. The results indicate that the land reclamation for...
The main objective of this research is to investigate Iran's coal demand, projection and supplies by using the structure of the Iranian socio-economic conditions. This study develops a scenario to analyse coal consumption and make future projections based on particle swarm optimisation (PSO) and genetic algorithm (GA) methods. The models developed in two forms (exponential and linear) and applied...
Based on the basic analysis of China's newest coal consumption data, the theory of co-integration is used in this article to analyze the co-integrate relationship between coal consumption and economic growth and the Granger causality model of coal consumption and economic growth is established, leading to the conclusion that there is no longer long-term co-integrate relationship between coal consumption...
This paper presents a supply security system simulation for the coordination mechanism of coal proper-rights and product markets. The coal demand model with the method of ldquounit GDP energy consumptionrdquo and the ldquomarginal-utility-based optimal coal mining raterdquo model are established to forecast the Chinese coal demand from year of 2008 to 2020, the ldquocoordination mechanism model of...
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