2006年-世界发展银行全球_Deposit_Insurance_Design_and_Implementation___Policy_Lessons_from_Research_and_Practice_33页_463kb

Deposit Insurance Design and Implementation: Policy Lessons from Research and Practice Summary

Core Content

This paper explores the design and implementation of deposit insurance (DI) systems globally, analyzing the challenges and policy implications of adopting such systems. It draws on cross-country empirical research and individual country experiences to formulate principles for effective DI systems. The authors argue that while explicit DI systems are becoming more common, their adoption and design are complex and require careful consideration of economic, political, and institutional factors.

Main Viewpoints

• Deposit Insurance is a Dual-Edged Sword: DI can enhance financial stability by reducing the likelihood of bank runs, but it may also encourage moral hazard by subsidizing risk-taking behavior.

• Empirical Evidence is Mixed: While DI can support financial development and increase household savings, it may also undermine productivity and sustainable growth in weak institutional environments.

• Adoption is Influenced by Multiple Factors: DI systems are often adopted in response to crises, political pressures, or integration into international financial frameworks (e.g., EU Directive). However, these adoptions can lead to suboptimal design and long-term policy constraints.

• Design Features Vary Widely: There is no one-size-fits-all approach to DI. Coverage limits, coinsurance, foreign currency deposits, and management structures differ significantly across countries, reflecting varying economic and institutional contexts.

• Timing and Careful Design are Crucial: Policymakers should avoid hasty adoption of DI, especially during or immediately after a crisis. Delaying the installation of DI may be a prudent strategy in many cases.

Key Information

Global Adoption Trends

• Explicit DI Systems: The number of countries offering explicit deposit insurance increased from 20 in 1980 to 87 by the end of 2003.
• Regional Differences: High-income countries are more likely to adopt DI (75%), while low-income countries have lower adoption (16%). DI is common in Europe and Latin America, but rare in Sub-Saharan Africa (11%) and the Middle East (29%).

Design Features Across Countries

• Coverage Limits: Some countries offer 100% coverage (e.g., Mexico, Turkey, Japan), while others limit reimbursement to amounts below per capita GDP (e.g., Chile, Switzerland, U.K.).
• Coinsurance: A few countries require depositors to share in the risk (coinsurance), which is rare in low-income countries.
• Foreign Currency Deposits: Not all DI systems cover deposits in foreign currency.
• Interbank Deposits: Most schemes exclude interbank deposits, but some low-to-middle income countries include them.
• Funding Mechanisms: DI is typically funded through a mix of government and bank contributions, with annual user charges to maintain reserves.

Empirical Findings

• Impact on Stability: In poorly developed contracting environments, DI reduces banking stability. In stronger environments, it has minimal effect.
• Market Discipline: DI can weaken market discipline by reducing depositor incentives to monitor banks. However, some features (e.g., coinsurance, foreign currency coverage) can strengthen it.
• Financial Development: DI can improve financial development by increasing depositors' confidence, but only in the presence of strong institutions. In weak environments, it may hinder growth and productivity.
• Crisis Management: Broad deposit guarantees can help contain crises but may lead to long-term fiscal burdens and moral hazard. They do not necessarily accelerate recovery or reduce the severity of crises.

Country Examples

• United States: Established the first nationwide DI system in 1934. Coverage limits have been gradually increased over time.
• Mexico: Adopted DI in 1991, which led to reckless lending and a taxpayer-funded bailout. The system was later expanded to cover all deposit types.
• Russia: Took nearly a decade to adopt DI after experiencing a major crisis in 1998. The system was introduced to create a level playing field between state-owned and private banks.
• Argentina: Revoked DI in 1991, but reintroduced it in 1995 due to bank suspensions, leading to a new coverage limit of $30,000.

Policy Implications

• Delay Adoption: The authors suggest that in many cases, officials should delay the installation of DI systems to avoid moral hazard and long-term fiscal strain.
• Institutional Readiness is Critical: DI should be introduced only when the country has a strong contracting environment, transparent governance, and effective regulatory frameworks.
• Adapt Design to Context: DI systems must be tailored to the economic and institutional conditions of the country, considering factors such as bank capital, GDP per capita, and crisis management needs.
• Private Management Can Be Effective: A few countries (e.g., Germany, Switzerland) manage DI systems privately, which may offer better efficiency and accountability.

Conclusion

The paper concludes that while deposit insurance is an important component of financial safety nets, its design and implementation require careful consideration of institutional quality, economic context, and long-term policy implications. Cross-country evidence suggests that the benefits of DI are conditional on the strength of the regulatory and contracting environment, and that hasty or poorly designed systems can lead to adverse consequences. Policymakers should therefore prioritize institutional development and avoid the pitfalls of over-insurance and moral hazard when considering the adoption of DI.