Maximal (formerly miner) Extractable Value (MEV) is the ability for security providers to selectively insert, reorder, or censor user transaction requests during the block production process. While MEV can have many negative externalities including higher costs for users, it’s not all bad. MEV presents the opportunity for better liquidity, more efficient transaction routing, and higher yield for stakers. Today, we think about MEV through the lens of Ethereum as this is where the majority of DeFi activity exists, yet MEV also exists on other chains. MEV on Cosmos, Solana, and other popular chains is an area that is still ripe for exploration. MEV can be minimized, controlled, and redistributed, but it can never be fully removed from blockchains. MEV can be distributed as a public good if harnessed properly, but centralization concerns will have to be monitored to ensure networks retain the ethos of decentralization.

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