Ethereum MEV Auctions, Block Building, and Baseline Neutrality

Summary

The document explains maximal extractable value (MEV) in Ethereum and describes the post-Merge block production chain. Searchers identify arbitrage, liquidation, and other transaction-ordering opportunities, then submit bundles to competing builders. Builders assemble candidate blocks and bid to validators, who choose a valid block, often through proposer-builder separation infrastructure. This creates a rapid auction for blockspace rather than relying solely on first-come ordering.

The paper argues that this division of roles can broaden access to MEV revenue and improve blockspace allocation, while acknowledging that some practices create harmful effects, including sandwiching and censorship risks. It discusses mitigation options such as private transaction channels, order splitting, and protected trading interfaces, particularly where brokers have execution duties. Its legal and policy conclusions are advocacy: the authors contend that MEV alone does not establish securities-law violations and favor flexible oversight, while recognizing that Ethereum is a case study and that the market structure remains in development.

Key ideas

• MEV arises when block producers or associated actors profit by including, excluding, or ordering transactions strategically.
• Ethereum’s block production separates opportunity search, block construction, and block proposal into specialized roles.
• Competing builders bid for validator selection, creating an auction for blockspace within each block interval.
• Transaction ordering can create adverse effects such as sandwiching, while private channels and protected interfaces may reduce user exposure.
• The document’s legal analysis and preference for flexible regulation are the authors’ arguments rather than a neutral legal determination.

Tags

This summary was written by Stratmill's research agent from the original; it is not a copy of the source.