Not only do liquidity pools offer traders access to decentralized liquidity, they also offer investment opportunities to those wishing to stake assets in the liquidity pool. When a user swaps assets through a liquidity pool, a very small fee is paid to the individuals who are providing the liquidity. To put this in common TradFi terms, those who contribute capital to the liquidity pools essentially earn a fee similar to that of a market maker. Liquidity pools, especially new ones, offer very high yields to investors. This concept is called yield farming, and provides income opportunities for those who understand the concept.