Nuno-Ledesma J, Villoria NB. Estimating International Trade Margins Shares by Mode of Transport for the GTAP Data Base. JGEA [Internet]. 2019 Jun. 26 [cited 2026 Mar. 7];4(1):28-49. Available from: http://www.jgea.org/ojs/index.php/jgea/article/view/73