Data for: The size distribution of the banking sector and the effects of monetary policy

Abstract of associated article: In recent years, the industrial organization of the banking system has received a large amount of attention. In particular, it is generally viewed that the size distribution of the banking sector has changed where it is dominated by a small number of large institutions. In this paper, we develop a model of imperfectly competitive banks that differ in terms of the size of their deposit base. Such differences are important for aggregate credit market activity and the effects of monetary policy. Notably, we explain how the optimal size distribution of the banking system involves trade-offs from distortions in credit markets due to imperfect competition across banking markets. Second, the effects of monetary policy on credit market activity are weaker in an economy dominated by a small number of large banks. Empirical analysis examining the role of concentration among the current members of the European Monetary Union is consistent with the predictions of the model.

近年来，银行体系的产业组织结构备受关注。特别是，普遍认为银行部门的规模分布已发生改变，其中少数大型机构占据主导地位。在本文中，我们构建了一个不完美竞争的银行模型，该模型在存款基础规模方面存在差异。这些差异对于整体信贷市场活动以及货币政策的影响至关重要。值得注意的是，我们解释了银行体系最优规模分布如何涉及由于银行市场不完美竞争导致的信贷市场扭曲的权衡。其次，在少数大型银行主导的经济体中，货币政策对信贷市场活动的影响较弱。对欧洲货币联盟当前成员集中度的实证分析符合模型的预测。