Liquidity pools not only provide traders with access to decentralized liquidity, but also provide investment opportunities for those who want to invest assets in the liquidity pool. When a user trades assets through a liquidity pool, a very small commission is paid to the people who provide the liquidity. To put this in common TradFi terms, those who contribute capital to the liquidity pools essentially earn a commission similar to that of a market maker. Liquidity funds, especially new ones, offer very high returns to investors. This concept is called yield farming and it provides income opportunities for those who understand the concept.