Abstract While all EU Member States can join the group's monetary union, the euro area, some members are far more ready for the adoption and use of the single European currency. Here, we construct a new Monetary Union Readiness Index (MURI) for the EU Member States. The theoretical framework of the index is built on the economic theory of Optimal Currency Areas and EU regulations such as the Treaty and the Maastricht criteria, and the Regulation on the Macroeconomic Imbalance Procedure. The index measures (i) nominal convergence, (ii) real convergence, and (iii) macroeconomic stability. The MURI Index provides an easy to use real-time policy tool to evaluate both candidate and current euro area members. Hence, it complements, aggregates and communicates key information in annual convergence reports and in official statistics. Our evaluation finds that Austria, Finland, Denmark, Sweden and Germany showed the highest level of compliance with the different euro area criteria in 2018, while Greece, Cyprus, Romania, Spain, and Italy were the least compliant.

中文翻译：

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准备好了没？构建货币联盟准备指数

摘要 虽然所有欧盟成员国都可以加入该集团的货币联盟欧元区，但一些成员国已经为采用和使用单一欧洲货币做好了准备。在这里，我们为欧盟成员国构建了一个新的货币联盟准备指数 (MURI)。该指数的理论框架建立在最优货币区的经济理论和欧盟法规如条约和马斯特里赫特标准以及宏观经济失衡程序法规的基础上。该指数衡量 (i) 名义趋​​同，(ii) 实际趋同，以及 (iii) 宏观经济稳定性。MURI 指数提供了一个易于使用的实时政策工具来评估候选和当前欧元区成员。因此，它补充、汇总和交流年度趋同报告和官方统计数据中的关键信息。