Structural Decomposition Analysis of Japan’s Energy Transitions and Related CO2 Emissions in 2005–2015 Using a Hybrid Input-Output Table

Tatsuki Ueda ()
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Tatsuki Ueda: National Agriculture and Food Research Organization

Environmental & Resource Economics, 2022, vol. 81, issue 4, No 4, 763-786

Abstract: Abstract This study investigates Japan’s energy transitions in 2005–2015, which involved massive economic disruptions due to the 2011 Great East Japan earthquake and the Great Recession. A hybrid input-output (IO) table that conforms to the energy conservation condition was newly compiled by integrating the Japanese energy-balance and linked-IO tables. This was employed to conduct a structural decomposition analysis (SDA), which attributes changes in energy consumption and CO2 emissions to the effects of intensity, structure, domestic final demand, and export. These effects were successfully segregated into a profile of energy sources. The results revealed that the structural effect became the dominant driver for decisively reducing energy consumption and emissions of manufacturing and service sectors in the latter period 2011–2015. This suggested that it took time to materialize energy-saving innovations in response to the sudden economic disruptions. Over the entire period, the structural effect was the largest driver contributing to the overall reductions, in part because the other effects tended to cancel out either between energy sources or periods. Therefore, a sensible way to transform Japan to a less energy-intensive, carbon-free society in the future is to improve the non-energy input structures of the manufacturing and service sectors.

Keywords: Climate change; Energy; Fossil fuel; Input-output analysis; Structural decomposition analysis (search for similar items in EconPapers)
Date: 2022
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DOI: 10.1007/s10640-022-00650-9

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