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Disaggregating air, land and maritime transport sectors in the GTAP database

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  • Norman-Lopez, Ana
  • Wojtowicz, Krzysztof
  • Garaffa, Rafael
  • Tamba, Marie

Abstract

In the Global Trade Analysis Project (GTAP) data base (Aguiar et al., 2019), transport sectors (air, land and maritime) are too aggregated for modelling transport policies for specific modes (aviation/rail/road) and operations (passenger/freight). This limitation is already recognised in the literature, with a number of studies focusing on data quality and transport analysis (e.g., Karkatsoulis et al., 2017, Nuno-Ledesma and Villoria, 2019, Robson et al., 2018). This study splits the air and maritime sectors into two sectors each (air passenger, air freight, water passenger, water freight) and the land transport sectors into four new sectors (road passenger, road freight, rail passenger and rail freight). Our contribution to the literature is an open discussion of the data available paying particular attention to GTAP’s structure, and a step by step procedure on how to split the transport sectors and the data we use. Finally, this paper will discuss baseline projections of the disaggregated transport components. Our methodology to split GTAP database is a simple RAS method, which is used twice (separately for each aggregated sector and each region): first to disaggregate the cost structure of a sector and then to disaggregate its use (sales). We run RAS starting with an already aggregated GTAP database (35 sectors and 49 regions), but the method can be applied to any other dimensions.

Suggested Citation

  • Norman-Lopez, Ana & Wojtowicz, Krzysztof & Garaffa, Rafael & Tamba, Marie, 2022. "Disaggregating air, land and maritime transport sectors in the GTAP database," Conference papers 333415, Purdue University, Center for Global Trade Analysis, Global Trade Analysis Project.
    • Handle: RePEc:ags:pugtwp:333415
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    References listed on IDEAS

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    1. Weitzel, Matthias & Saveyn, Bert & Vandyck, Toon, 2019. "Including bottom-up emission abatement technologies in a large-scale global economic model for policy assessments," Energy Economics, Elsevier, vol. 83(C), pages 254-263.
    2. Jose Nuno-Ledesma & Nelson B. Villoria, 2019. "Estimating International Trade Margins Shares by Mode of Transport for the GTAP Data Base," Journal of Global Economic Analysis, Center for Global Trade Analysis, Department of Agricultural Economics, Purdue University, vol. 4(1), pages 28-49, June.
    3. Weitzel, Matthias & Saveyn, Bert & Vandyck, Toon, 2019. "Including Bottom-Up Emission Abatement Technologies in a Large-Scale Global Model for Policy Assessments," 2019: Trading for Good - Agricultural Trade in the Context of Climate Change Adaptation and Mitigation... Symposium, June 23-25, 2019, Seville, Spain 312535, International Agricultural Trade Research Consortium.
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    Keywords

    International Relations/Trade; International Relations/Trade;

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