Synergy effects of highway investments on the Turkish economy: An application of an integrated transport network with a multiregional CGE model

Piskin M., Hewings G. J. D., Hannum C. M.

TRANSPORT POLICY, cilt.95, ss.78-92, 2020 (SSCI) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 95
  • Basım Tarihi: 2020
  • Doi Numarası: 10.1016/j.tranpol.2020.05.011
  • Dergi Adı: TRANSPORT POLICY
  • Derginin Tarandığı İndeksler: Social Sciences Citation Index (SSCI), Scopus, Academic Search Premier, Aquatic Science & Fisheries Abstracts (ASFA), Business Source Elite, Business Source Premier, Geobase, Index Islamicus, PAIS International, Pollution Abstracts, Public Affairs Index, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.78-92
  • İstanbul Teknik Üniversitesi Adresli: Evet

Özet

We develop a Multi-Regional Spatial Computable General Equilibrium (TurkSCGE) model for economic analysis of highway projects, estimating their impacts on regional welfare and economic outcomes in Turkey. The framework integrates a transport sub-model that estimates minimum distances with a multiregional Computable General Equilibrium model that estimates economic aggregates. TurkSCGE identifies eight sectors in each of 11 regions. Three experiments explore the impacts of decreases in transportation margins from 'distance shortening'. The three highway projects involved are estimated to yield a combined increase in GDP of 1.6%. However, the new highways in eastern Turkey, connecting eastern regions to each other and the west are shown to be best options for improving welfare in poorer regions.