Johnston, Ron; Hepple, Les; Hoare, Tony; Jones, Kelvyn; … - In: Open Economies Review 14 (2003) 1, pp. 11-14
The paper by Porojan on 'Trade flows and spatial effects' in a recent issue of this journal is criticized on three methodological grounds: it includes two of the gravity model independent variables as relative rather than absolute numbers; the dummy variables included are not binary but...
