Mrázová, Monika; Vines, David; Zissimos, Ben - In: Journal of International Economics 89 (2013) 1, pp. 216-232
The GATT/WTO Article XXIV prevents a customs union (CU) from raising its common external tariff. In this paper, we compare CU formation with and without this Article XXIV constraint. We show, in a multi-country oligopoly model, that for a given CU structure, Article XXIV improves world welfare...