Exploration of MEV Latencies
Front-running is a predatory market behavior that arises due to information asymmetries created by different actors accessing privileged information. Front-running is one of the ways to access MEV, and selling clients' orders is equivalent to the public Ethereum mempool.
Gonzalo Hirsch • Enter the MEV Void: the Rise of Flashbots
Profit-maximizing strategies can be benign (e.g. builders prioritizing transactions that offer fees for being included) or more problematic (e.g. if the builder observes a profitable trade, they can front-run it by including their own copy of the transaction first).