从柯南和奥布斯菲尔德所提出的前提出发，甚至即使从蒙代尔的劳动流动性前提看，一个符合逻辑的推论是，货币联盟不可能在没有政治合法性 — — 最有可能的形式是地区级的大选 — — 的前提下生存。
A logical corollary of the criteria set forth by Kenen and Obstfeld, and even of Mundell’s labor-mobility criterion, is that currency unions cannot survive without political legitimacy, most likely involving region-wide popular elections.