EBA欧洲银行-Chahad-2CdeBandtA-DSGE-model-to-assess-the-post-crisis-regulation-of-universal-banks-Presentation_41页_1mb

Summary of "A DSGE Model to Assess the Post Crisis Regulation of Universal Banks"

Core Content

This document presents a DSGE (Dynamic Stochastic General Equilibrium) model designed to evaluate the macroeconomic effects of post-crisis regulatory reforms on universal banks. The focus is on analyzing the impacts of capital requirements and liquidity requirements (specifically the Liquidity Coverage Ratio (LCR)) introduced after the financial crisis, such as the Volcker Rule, Liikanen Proposal, and Basel III.

The model incorporates:

• Heterogeneity among producers, distinguishing between SMEs (Small and Medium Enterprises) and large firms.
• A bond market framework inspired by Gilchrist et al. (2010).
• A multi-period assets framework from Benes and Lees (2010), allowing for geometric repayments of principal and interest.
• Calibration using euro area data to reflect real-world conditions.

Main Findings

• Negative impact on output is observed, primarily through:
  • Private consumption affected by the LCR constraint.
  • Private investment reduced due to the capital ratio constraint.
• Liquidity regulation has persistent effects on the economy, particularly through consumption dynamics.
• The LCR may lead to a substitution effect, where banks replace business loans with sovereign bonds, potentially crowding out business investment.
• Simultaneous implementation of liquidity and solvency regulations has compounded negative effects on the economy.
• Progressive implementation of regulatory changes reduces the deleveraging effect and increases profit margins, favoring the latter strategy.
• Local regulators have some flexibility to influence the effects of regulatory constraints.
• There is no evidence of positive externalities between capital and liquidity requirements.

Key Information

• The DSGE model is richer than previous models, incorporating detailed financial and real market interactions.
• The LCR is shown to have a significant impact on bank behavior, especially in terms of asset composition.
• The simulation results are consistent with earlier studies like Covas and Driscoll (2014), but within a more comprehensive framework.
• The regulatory constraints are calibrated to reflect Basel III requirements and are implemented gradually over time.

Regulatory Impact Overview

Conclusion

• The new Basel III constraints result in a medium-term dampening of output.
• They increase discrepancies between small and large firms, with the accumulation of sovereign bonds playing a leading role in this divergence.
• A long or loose implementation of these regulations may mitigate some of the negative effects on the economy.

Related Literature

• The document notes that while there are many papers on macro-prudential regulations, little evidence exists on the impact of liquidity requirements.
• Most existing studies use simplified definitions of liquidity constraints, which are not aligned with the complex measures introduced in the new regulatory framework.