Philippidis, GeorgeResano Ezcaray, HelenaSanjuán López, Ana IsabelBourne, Michael GeoffreyKitou, Elisavet2012-08-272012-08-272012Philippidis, George, Helena Resano, Ana Sanjuan, Michael Bourne and Elisavet Kitou. "Shifting Armington trade preferences employing gravity models: Addressing the ‘small shares stay small’ problem. " 15th Annual Conference on Global Economic Analysis, Geneva, Switzerland, June 27th – 29th, 2012. 32 p.http://hdl.handle.net/10532/1953enModelos econométricosComercio internacionalEconomía agroalimentariaconferenceObject