Sunk Cost Fallacy in DeFi

The sunk cost fallacy occurs when a trader continues to invest in a failing protocol or position because they have already spent significant capital on it. They feel that exiting the position would mean acknowledging the loss of their previous investment.

In decentralized finance, this often manifests as continuing to provide liquidity or adding collateral to a failing vault to avoid liquidation. The rational choice would be to evaluate the current market conditions independently of past costs.

However, the emotional burden of the initial investment clouds judgment. This behavior frequently leads to greater losses than if the trader had exited early.

Recognizing that past investments cannot be recovered is a core tenet of rational financial management. It is crucial to evaluate every trade based on its future potential rather than past performance.