2022-09-13-美联储-分散金融（DeFi）_变革潜力和相关风险（英）_33页_516kb

Decentralized Finance (DeFi) refers to financial services built on blockchain technology, offering peer-to-peer alternatives to traditional intermediaries like banks. Key elements include:

1. Blockchain Basics: Utilizes distributed ledgers, smart contracts, and consensus mechanisms (e.g., Proof of Work/Proof of Stake) for secure, transparent transactions.
2. Key Features: Trustless execution via smart contracts, pseudonymity, censorship resistance, and 24/7 accessibility. Governance is often community-driven through token voting.
3. Products & Services: Includes lending/borrowing, decentralized exchanges (DEXs), derivatives, payments, synthetic assets, and asset management.
4. Technology Challenges: Faces scalability issues (e.g., Ethereum's transaction limits) and is evolving with solutions like sharding and Layer 2 protocols (rollups).
5. Risks: High operational risk from smart contract vulnerabilities, flash loans, price volatility, regulatory uncertainty, and systemic vulnerabilities in interconnected protocols.
6. Regulatory Considerations: DeFi largely operates outside traditional regulatory frameworks, making it difficult to address risks like illicit activities or financial stability issues. Regulatory clarity and interoperability are needed to integrate DeFi with traditional finance.

In conclusion, DeFi offers transformative potential but introduces unique risks related to security, governance, and systemic stability. Policymakers should develop frameworks to mitigate these risks while fostering innovation.