Balistreri E, Tarr D. Mathematics of Generalized Versions of the Melitz, Krugman and Armington Models with Detailed Derivations. JGEA [Internet]. 2022 Dec. 19 [cited 2026 Jul. 10];7(2). Available from: https://jgea.org/ojs/index.php/jgea/article/view/156