Maximal Extractable Value in Decentralized Finance: Taxonomy, Detection, and Mitigation

• URL: http://arxiv.org/abs/2411.03327v1
• Date: Tue, 22 Oct 2024 12:11:41 GMT
• Title: Maximal Extractable Value in Decentralized Finance: Taxonomy, Detection, and Mitigation
• Authors: Huned Materwala, Shraddha M. Naik, Aya Taha, Tala Abdulrahman Abed, Davor Svetinovic,
• Abstract summary: Maximal Extractable Value (MEV) can be extracted from financial transactions on the blockchain. MEV causes financial losses and consensus instability, disrupting the security, efficiency, and decentralization goals of the DeFi ecosystem. This survey provides valuable insights for researchers, developers, stakeholders, and policymakers.
• Score: 0.534772724436823
• License:
• Abstract: Decentralized Finance (DeFi) leverages blockchain-enabled smart contracts to deliver automated and trustless financial services without the need for intermediaries. However, the public visibility of financial transactions on the blockchain can be exploited, as participants can reorder, insert, or remove transactions to extract value, often at the expense of others. This extracted value is known as the Maximal Extractable Value (MEV). MEV causes financial losses and consensus instability, disrupting the security, efficiency, and decentralization goals of the DeFi ecosystem. Therefore, it is crucial to analyze, detect, and mitigate MEV to safeguard DeFi. Our comprehensive survey offers a holistic view of the MEV landscape in the DeFi ecosystem. We present an in-depth understanding of MEV through a novel taxonomy of MEV transactions supported by real transaction examples. We perform a critical comparative analysis of various MEV detection approaches, evaluating their effectiveness in identifying different transaction types. Furthermore, we assess different categories of MEV mitigation strategies and discuss their limitations. We identify the challenges of current mitigation and detection approaches and discuss potential solutions. This survey provides valuable insights for researchers, developers, stakeholders, and policymakers, helping to curb and democratize MEV for a more secure and efficient DeFi ecosystem.

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