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Input-output analysis of embodied emissions: Impacts of imports data treatment on emission drivers

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  • Su, Bin
  • Ang, B.W.
  • Sun, Ya-Fang

Abstract

Input-output (I-O) analysis has been widely used in embodied emission studies. For country-level analysis, the non-competitive imports assumption is generally preferred. However, national I-O tables with the non-competitive imports assumption are often not available. In empirical studies, the uniform imports share approach is usually adopted to give the estimated tables from the I-O tables with the competitive imports assumption. When data are available for two different years, structural decomposition analysis (SDA) can be applied to study the drivers of the embodied emission changes. We propose a SDA framework with two imports effects, i.e. input imports effect and demand imports effect, to evaluate the impacts of imports data treatment on the drivers. An empirical study using China's latest I-O datasets, for 2017 and 2018, show that the impacts are not significant at the national level but are significant at the sectoral level. For the latter, the impacts on sectoral embodied emission intensity range from −5% to 16%, while on sectoral embodied emissions range from −8% to 35%. Sectoral aggregate embodied intensity (AEI) indicators are found to be more robust to the imports data treatments than sectoral embodied emission intensity. In some cases a change in the sign of the input imports effect or demand imports effect is observed, which leads to opposite outcomes. Implications of the findings on embodied emission studies and the role of imports are discussed.

Suggested Citation

  • Su, Bin & Ang, B.W. & Sun, Ya-Fang, 2022. "Input-output analysis of embodied emissions: Impacts of imports data treatment on emission drivers," Energy Economics, Elsevier, vol. 107(C).
    • Handle: RePEc:eee:eneeco:v:107:y:2022:i:c:s0140988322000585
    DOI: 10.1016/j.eneco.2022.105875
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    References listed on IDEAS

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    Citations

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    More about this item

    Keywords

    Input-output analysis; Structural decomposition analysis; Embodied emissions; Input imports effect; Demand imports effect; China;
    All these keywords.

    JEL classification:

    • C67 - Mathematical and Quantitative Methods - - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling - - - Input-Output Models
    • P28 - Political Economy and Comparative Economic Systems - - Socialist and Transition Economies - - - Natural Resources; Environment
    • Q43 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Energy - - - Energy and the Macroeconomy
    • Q54 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Climate; Natural Disasters and their Management; Global Warming
    • Q56 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Environment and Development; Environment and Trade; Sustainability; Environmental Accounts and Accounting; Environmental Equity; Population Growth
    • R15 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General Regional Economics - - - Econometric and Input-Output Models; Other Methods

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