20120425 Follow Me 349 Feeling peaky:The economic impact of high oil prices

zhdefei 发表于 2012-4-25 08:37
Although the oil price can impact  the economic development,  the mainstream economists are  interes ...

After all, the oil price is one of most important factors which affects the macro-economy! That doesn't cater the economists' taste~

mu_lianzheng 发表于 2012-4-25 10:28
Feeling peaky
感觉憔悴

翻译的很不错，呵呵 EROI是 energy return on investment，意思是“能源投入回报值”，是用能量单位，如焦耳，而非货币单位，如多少人民币，来衡量能源投入与能源产出的关系。例如，石油是一种能源，其所产生的能量能够做功，但生产石油也需要消耗各种能量，用产出的能量除以投入的能量，就是该能源生产的EROI。改值反映了能源品质的变化及生产难度的变化。以石油为例，在上个世纪70年代左右，石油的EROI在100多以上，但现在已经降到20多了，这种变化的原因就是廉价易采石油资源的减少，取而代之的是昂贵难采的非常规油气，这种变化意味着可供人类使用某类重要的“净能量”(能源并不能做功，而是能源所具有的能量能够做功)的减少。这个应该引起经济学家的注意。
一味的关注石油产量等绝对量的增加是没有意义的，因为即使现在的绝对量增加了，但是其净能量实际上已经达到峰值或开始减小，这个也应该大家的注意。
上述这些就是EROI的内涵。

sailingyf 发表于 2012-4-25 09:39
Oil crisis is coming! New clean energy is very needed, but it's much easy to say than to find new en ...

yes, i agree your point. new energy is good and have a bright future, but it need much more cost and a long time to research and use it.

High oil price means not only the  infrequent of oil but also the growing demand。In anther way ，the
increase in quantity of currency  gives oil a high—made price。To this problem ，we should not be surprised，as this is just one inevitable tendency。

"Energy return on energy invested', I don't know whether it is the conservation of energy theory. Imagine a world where we can make use of the exhaust gas emitted by the tailpipes of cars to operate machines, how fascinating it will be!