Game Theory of Peg Maintenance

Game theory of peg maintenance refers to the strategic design of incentive structures within stablecoin protocols to ensure the asset maintains its target value, usually one dollar. It involves creating a system where market participants are financially motivated to perform arbitrage whenever the price deviates from the peg.

When the price is above the peg, the protocol encourages the minting of new tokens or the selling of collateral to drive the price down. Conversely, when the price falls below the peg, participants are incentivized to buy back the token or burn supply to push the price up.

These mechanisms rely on the assumption that actors act rationally to maximize their own profit. The stability of the peg depends on the robustness of these incentives against adversarial attacks or extreme market volatility.

If the incentives are poorly designed, a death spiral can occur where market participants lose confidence and flee the asset. This field bridges behavioral economics and protocol engineering to maintain financial equilibrium in decentralized systems.