Deposit insurance, bank regulation, and narrow banking

• 成果类型: Article
• 署名作者: Williamson, Stephen
• 署名单位: Western University (University of Western Ontario)
• 刊物名称: JOURNAL OF ECONOMIC THEORY
• ISSN/ISSBN: 0022-0531
• DOI: 10.1016/j.jet.2024.105859
• 发表日期: 2024
• 关键词: Bank regulation; Deposit insurance; Narrow banking

摘要

Narrow banking has surfaced frequently as a proposed framework for dealing with financial instability and inefficiency. Recent proposals include reforms intended to improve the implementation of monetary policy, and to deal with perceived problems related to stablecoins. A model is constructed in which banks must deal with three frictions: limited commitment, moral hazard with respect to risky assets, and potential misrepresentation of safe assets. Surprisingly, deposit insurance does not engender inefficiency, and government-imposed capital requirements and leverage requirements serve to reduce welfare. The viability of narrow banking depends on inefficient regulation in conventional banking, and narrow banking is never welfare-improving.