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美国 essay 代 写:不可再生资源

美国 essay 代 写:不可再生资源

自1970年以来,世界上的不可再生资源经历了各种各样的变化。这些变化是自然资源消耗增加和供应减少的一部分。讨论工业化国家,由于不可再生资源的供应逐渐下降,这些国家的公司在需求曲线上经历了缓慢的增长。1990年东亚国家对不可再生资源的需求显著增加,而且这种需求仍然强劲。另一方面,欧洲经济体预测未来供应不足,并利用技术发明来替代对不可再生资源的需求(Lawell and Zhang, 2015)。经济学是与稀缺资源的配置相联系的,这就是为什么不可再生资源具有固定的存量,而相对于需求,它们的供给是有限的。树龄在1000年以上的古树属于不可再生资源,因为它们成熟生长缓慢,剩余林分有限。

美国 essay 代 写:不可再生资源
另一方面,煤炭被一些经济学家认为是不可再生资源,一些经济学家会认为它是可再生的,因为它有剩余的库存。从使用角度看,世界各地现有的煤的利用率,这些煤可以满足3000多年的需求。从经济角度看,由于煤炭储量固定,短期内不会出现煤炭短缺。如果资源是可再生的,那么开采过程中就不会出现稀缺性(Chang and Li, 2014)。本讨论中使用的第一篇论文是凯恩斯(1990)的,研究主题是“不可再生资源勘探的经济学”。理论框架:本文采用霍特林模型,这些模型解释了每一种不可再生资源的有限可用性和使用情况。本文采用了分组模型。

美国 essay 代 写:不可再生资源

Non renewable resources in the world have undergone various changes since 1970. These changes were part of the increasing consumption of and decreasing supply of the natural resources. Discussing about the industrialized countries where the companies have experienced a slow growth rate on the demand curve because of gradual decline in the supply of non renewable resources. Demand for non-renewable resources in East Asian countries increased significantly during 1990 and this demand is still strong. European economies on the other hand predicted the short fall of supply in future and used technological inventions for substituting the need of non renewable resources (Lawell and Zhang, 2015). Economics is connected with the allocation of scare resources and this is the reason why non renewable resources have a fixed stock and they also have limited supply in regard with the demand. Trees of old growth with life span of over 1000 years come under the classification of non renewable resources because they have a slow growth due to maturity and limited remaining stands.

美国 essay 代 写:不可再生资源
On the other hand coal is considered to be non renewable resource by some economists and some economists would consider it as renewable because it has remaining stock available. From usage perspective current rate of coal available all over the world and this coal would fulfill the needs for more than 3000 years. From an economic perspective coal scarcity would not occur in near future because of its fixed stock. If the resource is renewable there will be no scarcity associated with the extraction (Chang and Li, 2014). First paper used in this discussion is by Cairns (1990), topic of the research is “The economics of exploration for non-renewable resources”. Theoretical framework: the hotelling model has been used in this paper and these models explain: finite availability and usage of each non renewable resource. Parcimonious model has been used in the paper.