2023-11-01-国际清算银行-全系统股利限制_证据与理论_47页_1mb

Summary

The Bank for International Settlements (BIS) examines system-wide dividend restrictions (SWDRs) as a tool to sustain banking sector lending during economic downturns. Launched by the ECB in March 2020, the SWDR recommended euro-area banks refrain from distributing dividends for the 2019 and 2020 financial years until at least October 2020. The analysis evaluates both empirical evidence and theoretical frameworks.

Evidence from the ECB SWDR:

• Bank lending increased by approximately 5% for institutions that deferred dividends compared to those that paid out dividends.
• Stock prices experienced a negative but moderate and transitory impact, largely due to the unanticipated nature of the policy. Once lifted, dividends recovered fairly quickly, partially compensating for the prior deferral.
• Market participants viewed the measure as a temporary deferral of dividends rather than a permanent cut.

Theoretical Modeling with a DSGE Framework:

• A quantitative Dynamic Stochastic General Equilibrium (DSGE) model incorporating banking features is calibrated to euro-area data to assess the SWDR's general equilibrium effects.
• The SWDR stabilizes lending and economic activity by safeguarding bank capital. Welfare gains are significant under certain conditions, particularly in response to financial shocks.
• The optimal SWDR is highly countercyclical and strictly enforced, but it only provides substantial welfare benefits during financial shocks due to the economy's structural constraints.

Conclusion:
SWDRs are effective in sustaining lending during crises and mitigating economic downturns. Their impact on bank valuations is limited and temporary. The optimal SWDR policy is welfare-enhancing but highly dependent on the type and severity of economic shocks.

Key Findings:

• SWDRs balance the need for banks to conserve capital with minimal disruption to financial markets.
• Welfare gains are maximized through timely and sufficiently enforced countercyclical policies.