One of the main problems of European banks is their low profitability, often attributed to burdensome new regulation. In this paper we investigate whether the establishment of the Single Supervisory Mechanism (SSM) influenced the profitability of European banks using the returns on assets and equity as alternative indicators and applying the difference-in-differences methodology combined with matching techniques. Our main findings indicate a statistically significant and positive effect on profitability for the directly supervised banks, and especially banks located in the euro area periphery. Institutional improvements introduced by the SSM have been beneficial for improving performance and enhancing integration of the banking sector.

欧洲银行的主要问题之一是盈利能力低，通常归因于繁琐的新监管。在本文中，我们使用资产和股权收益作为替代指标，并应用差异中的差异方法结合匹配技术，研究单一监管机制（SSM）的建立是否影响了欧洲银行的盈利能力。我们的主要发现表明，对直接监管的银行，尤其是位于欧元区外围的银行的盈利能力有统计上显着的积极影响。SSM 引入的制度改进有利于提高绩效和加强银行业的整合。