EBA欧洲银行-Discussant_1_Monika-Marcinkowska_29页_2mb

Summary of "Bank capital structure: A story of internationalization and business model" by Perono & Violon

Core Content

The paper discusses the relationship between bank capital structure, internationalization, and business models. It explores how the internationalization of banking operations affects the risk profile, performance, and balance sheet structure of banks. Additionally, it analyzes how different business models influence capital structure and risk management strategies.

Main Points

Internationalization

• Internationalization of banking operations has significant implications for the risk profile and performance of banks.
• It affects the balance sheet structure and is linked to systemic risk and liquidity management.
• The paper uses the ratio of total assets or liabilities denominated in a given currency relative to total assets in all currencies to measure internationalization, focusing on USD exposure.
• Limitations include not considering off-balance sheet items and only focusing on currency rather than geography of operations.
• The paper does not fully address the impact of FX risk management or specify international involvement in terms of activities and operations.
• The choice of topic is justified due to the significant implications of internationalization on banking risk and performance.

Business Models

• Business models are defined based on the legal form, nature, and nationality of the institution.
• The paper suggests using key ratios such as deposits, leverage ratio, and risk-weighted assets to classify business models.
• The definition of business models is somewhat ambiguous and could benefit from more detailed explanations.
• The paper could include a more comprehensive definition of business models, possibly using the business model canvas framework.
• The paper does not explicitly formulate hypotheses for each sub-section, which could enhance clarity and direction of the research.

Capital Structure

• The paper is well grounded in capital structure theory and includes relevant references.
• It uses the Risk Weighted Asset (RWA) density as a measure of risk, collected by the French banking supervision authority.
• Alternative risk measures such as Z-score and σROAA could be considered to better capture return volatility and bank stability.

Data and Methodology

• The paper uses RWA as a proxy for risk, but there are limitations in its application due to the lack of a benchmark measure like stock price volatility.
• The data on collateral and implicit guarantees for bail-out is unclear, which could affect the validity of the analysis.
• The inclusion of implicit guarantees for bail-out is not sufficiently explained, and further investigation into the impact of deposit guarantees and regulatory changes like the BRR Directive is recommended.

Policy Implications and Further Research

• The paper presents several findings that could have important policy implications, particularly in terms of capital requirements and risk management.
• It is suggested that the findings should be emphasized more clearly and that policy implications should be explicitly formulated.
• The paper answers some questions but also raises additional ones for further research, such as the role of different business models in risk management and the impact of regulatory changes on bank behavior.

Key Information

• Internationalization: Measured via currency exposure and has implications for risk and performance.
• Business Models: Classified using key ratios and could benefit from more detailed definitions.
• Capital Structure: Influenced by business models and internationalization, with RWA as a central risk measure.
• Data Limitations: Lack of clarity on collateral data and implicit guarantees, suggesting the need for more comprehensive data collection.
• Policy and Research: Findings have practical implications for regulatory policy and further research is needed to explore the nuances of business models and their impact on bank stability and performance.