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How Does the “Bribe” Mechanism Work in MEV Extraction?

The bribe is the financial incentive paid by a searcher to the block builder/validator to ensure their transaction bundle is included in a block and, crucially, ordered in a specific way. This bribe is typically a portion of the MEV profit and is paid via the transaction's priority fee or an off-chain payment.

The block builder chooses the bundle that offers the highest bribe, maximizing their own profit.

What Is the Concept of a ‘Tip’ or ‘Priority Fee’ in Modern Blockchain Transaction Models?
Does Using a Private Transaction Relay Guarantee a Transaction Will Be Included in the Next Block?
Does Sending a Transaction to a Private Mempool Guarantee Its Inclusion in the Next Block?
Explain How “Priority Fees” (Tips) Are Used in Modern Blockchain Fee Markets