What Is ‘Miner Extractable Value’ (MEV) in Relation to Transaction Ordering?
MEV is the profit that validators (or miners in PoW) can extract by strategically ordering, censoring, or inserting transactions within a block. This includes front-running decentralized exchange trades or liquidating positions.
It is a controversial practice that can negatively impact users by causing higher slippage and is a major area of research and mitigation efforts.