Lifespan of Commodities, Part I

@article{Murakami2010LifespanOC,
  title={Lifespan of Commodities, Part I},
  author={Shinsuke Murakami and Masahiro Oguchi and Tomohiro Tasaki and Ichiro Daigo and Seiji Hashimoto},
  journal={Journal of Industrial Ecology},
  year={2010},
  volume={14}
}
Lifespan is an essential parameter for the accounting and analysis of material stocks and flows, one of the main research topics in industrial ecology. Lifespan is also important as a parameter that portrays the current and historical situation of industrial metabolism, which is an area of interest to industrial ecologists. 

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References

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Lifespan of Commodities, Part II

Any of the four methodologies are theoretically applicable and provide the same value of a lifespan; however unless accurate data such as census statistics are available, lifespan data can vary, and therefore the authors must be very cautious about the representativeness of sample data.

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