Modelling production-consumption flows of goods in Europe: the trade model within Transtools3

Gerard de Jong, Reto Tanner, Jeppe Rich, Mikkel Thorhauge, Otto Anker Nielsen, John Bates

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    The paper presents a new model for trade flows in Europe that is integrated with a logistics model for transport chain choice through Logsum variables. Logsums measures accessibility across an entire multi-modal logistical chain, and are calculated from a logistics model that has been estimated on disaggregated micro data and then used as an input variable in the trade model. Using Logsums in a trade model is new in applied large-scale freight models, where previous models have simply relied on the distance (e.g. crow-fly) between zones. This linkage of accessibility to the trade model makes it possible to evaluate how changes in policies on transport costs and changes in multi-modal networks will influence trade patterns. As an example the paper presents outcomes for a European-wide truck tolling scenario, which showcases to which extent trade is influenced by such a policy. The paper discusses how such a complex model can be estimated and considers the choice of mathematical formulation and the link between the trade model and logistics model. In the outcomes for the tolling scenario we decompose the total effects into effects from the trade model and effects from the logistics model.
    Original languageEnglish
    JournalJournal of Shipping and Trade
    Issue number1
    Pages (from-to)1-23
    Publication statusPublished - 2017


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