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The Effect of Jump on Evaluating Natural Resource Investments

Chinese Journal of Population,resources and environment 2004年第4期2卷 28-32页

作者： yang haisheng, zhou yongzhang, wang shugong center for earth environment & resources, zhongshan university, guangzhou 510275, china institute of environmental science, zhongshan university, guangzhou 510275, china center for earth environment and resources Zhongshan University Guangzhou 510275 China institute of environmental science Zhongshan University Guangzhou 510275 China

The evaluation of mining and other natural resource projects is made particularly difficult by the high degree of uncertainty attaching to output prices. It is shown that the techniques of continuous time arbitrage and stochastic control theory may be used not only to value such projects but also to determine the optimal policies for developing managing. This paper describes a model for evaluating natural resource investments under uncertainty from a new perspective. The previous works in this field mostly regard the movements of natural resource prices as a continuous GBM process, which pays few attentions to the shock of unexpected bad news. Our model provides the first theoretical method to analyze the impact of such 'jump' on investment decisions. It concludes that the more frequently bad news happens, the earlier a project will be invested.

关键词： Investment Uncertainty Natural resource Stochastic process

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The Impact on environmental Kuznets Curve by Trade and Foreign Direct Investment in china

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Chinese Journal of Population,resources and environment 2005年第2期3卷 14-19页

作者： yang haisheng 1, Jia Jia 2, zhou yongzhang 1& wang shugong 1,31 center for earth environment & resources, zhongshan university, guangzhou, 5102752 Lingnan College, zhongshan university, guangzhou, 5102753 institute of environmental science, zhongshan university, guangzhou, 510275 center for earth environment and resources Zhongshan University Guangzhou 510275 China Lingnan College Zhongshan University Guangzhou 510275 China institute of environmental science Zhongshan University Guangzhou 510275 China

Based on data of trade, foreign directinvestment (FDI), economic development andenvironmental conditions in china’s 30 provincesbetween 1990-2002, this paper deals with the impacton environmental Kuznets Curve (EKC) of tradeand FDI in china. The results show no direct impacton EKC of trade, on the one hand. However, tradecontributes significantly to economic growth, andhas played a positive role in introducing advancedpollution prevention technology and environmentalmanagement methodology to china. Therefore, aproactive trade policy will help solve the environmentalpollution problem brought by economic growth. Onthe other hand, there is a positive correlation betweenFDI and pollutant emission, which proves that FDIdoes have some negative influence on environmentin china due to hasty introduction of foreign capitaland inadequate environmental management systemin china.

关键词： environmental economy free trade FDI environmental Kuznets Curve econometricmodel Sustainable development

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environmental response to ore deposits and mining of the Diaojiang River basin, Guangxi (South china)

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Acta Geochimica 2006年第S1期 40-41页

作者： yongzhang zhou1, Zhi DANG2, Xianzhi PENG3, Zhijun yang1, Chengbo ZHANG1, Xiaoqiang yang1, Shanming FU1, Yuyan ZHAO1 1 center for earth’s environment and resources, zhongshan university, guangzhou 510275, china 2 School of environment sciences, South china university of Technology, guangzhou 510640, china 3 guangzhou institute of Geochemistry, Chinese Academy of sciences, guangzhou 510640, china

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environmental response to ore deposits and mining of the Diaojiang River basin, Guangxi (South china)

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Chinese Journal Of Geochemistry 2006年第B8期25卷 40-41页

作者： yongzhang zhou Zhi DANG Xianzhi PENG Zhijun yang Chengbo ZHANG Xiaoqiang yang Shanming FU Yuyan ZHAO center for earth＇s environment and resources Zhongshan University Guangzhou 510275 China School of environment sciences South China University of Technology Guangzhou 510640 China guangzhou institute of Geochemistry Chinese Academy of Sciences Guangzhou 510640 China

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