Liquidator Bots
Liquidator bots are automated programs operated by market participants that monitor blockchain protocols for positions that are eligible for liquidation. When they identify such a position, they execute a transaction to close it, collecting a fee or a portion of the collateral as a reward for their service.
These bots play a vital role in maintaining the health of the entire ecosystem by ensuring that bad debt is cleared quickly. However, the competition between these bots can sometimes lead to network congestion and high gas fees, as they race to be the first to execute the liquidation.
Their behavior is a classic example of behavioral game theory in action, as they must balance the cost of execution with the potential reward of the liquidation.