Abstract:
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In the input-output literature, structural decomposition analysis (SDA) has largely been used to
disentangle changes in key variables over time. This paper uses the demand-driven input-output
model and proposes a simple method to decompose the changes in energy gross output into
different determinants. Specifically, the total changes in energy output are divided into two
elements: technological changes, showing the effects of changing the technological coefficients
of the input-output model, and structural changes, showing the effects of changing the final
demand components. The empirical application, which is for the Catalan economy, uses two
input-output tables that cover an entire decade (2001 and 2011). The results show a positive
contribution of technology to increasing energy output, while the contribution of the final
demand for energy is negative. In addition, the various energy activities exert a different
repercussion on energy gross output changes. This highlights the importance of using detailed
methods in the study of energy issues.
Keywords:
Energy Output, Input-Output Analysis, Structural Decomposition Analysis, Technological
Coefficients, Final Demand. |