Buyback and burn is a deflationary model where the project uses profits to purchase token development from the market and destroy them, reducing total supply and increasing scarcity. Implement a smart contract function to trigger buyback events manually or via automated triggers (e.g., fee thresholds). Once bought, tokens are sent to a burn address (0x000…dead). Use logs to show burn events and display them on a dashboard for transparency. Buybacks can be manual, DAO-governed, or even scheduled. Pair this model with staking rewards or liquidity mining for stronger tokenomics. Properly executed buybacks improve token price dynamics and incentivize holders.