If there’s an excess market supply of EOSDT, governance may decide to raise the applicable fee to induce position holders to sell off their “expensive” positions, lowering the supply of stablecoins. If there’s excess demand for EOSDT, governance may lower the interest rate to induce users to enter more “cheap” positions, increasing the total supply. This is reminiscent of how central banks adjust short-term interest rates to control the economy’s supply of money.