Perspective of Resource Productivity in Taiwan ~Application of Input-Out Analysis and Decomposition Analysis
Date Issued
2010
Date
2010
Author(s)
Lin, Tzu-Chun
Abstract
The inseparable tie between economic development and the resource consumption has resulted in the exploration of effective utilization of resource to become one of the most important topics in the field of sustainable material management. “Resource Productivity” has been used as the indicator to determine not only the decoupling relationship between economic growth and material use, but also the resource-use efficiency of a nation.
The purpose of this research is to use “Resource Productivity” as the indicator to evaluate the utilization efficiency of various resource categories in Taiwan between 2000 and 2008. In order to obtain a better overall picture of the status of resource utilization during the above mentioned period, the resources-use intensity, which is the inverse of the resource productivity, is calculated for 4 different categories of resources, namely Biomass, Metallic minerals, non-metallic minerals and Fossil fuels.
To further evaluate the resource-use efficiency of the various economic activities in Taiwan, this research categorizes the economic activities in Taiwan into 17 industries and the Input-Out (IO) Analysis was applied to estimate the resource flow between different industries to calculate the resource-use intensity of each industry. The Decomposition analysis method is then applied to the resource-use intensity index to obtain 4 different impact factors, namely the Recycling Factor (R), Induced Material-Use Intensity Factor (I), Demand Structure Factor (S) and Import Factor (P). Analysis was performed to determine the effect of each impact factor on the resource-use intensity.
Calculation shows a achieving 27.7% improvement in resource productivity in Taiwan, from 29.2 thousand dollars/ ton in 2002 to 37.3 thousand dollars/ton in 2008. On the other hand, the direct resource input has fallen since 2005 but the GDP was still showing positive growth, which indicate that the resource use and economic growth are beginning to decouple.
Comparison between individual industry shows the Minerals and Stone Sector has achieve high improvement in resource-use intensity, which is mostly contributed by the Induced Material-Use Intensity Factor (I). In terms of resource categories, the Fossil fuel resource use intensity has increased due to increase in demand and the Non-Metallic mineral has achieved the most significant improvement in resource-use intensity which was mostly contributed by both the Induced Material-Use-Intensity Factor (I) and the Recycling Factor (R).
In conclusion, improvement in resource productivity during the study period is mostly contributed by the improvement in the Induced Material-Use Intensity Factor (I). Reduction in resource input was shown during production, which implies the technological level of production has gradually improved. Besides, although the recycling factor (R) is not the major impact factor, the gradual increase in annual recycling rate however play a significant role in the improvement of the resource-use intensity.
Subjects
Resource Productivity、Resource-use intensity
Input-Out (IO) Analysis
Decomposition analysis method
Type
thesis
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