Buyers are a profession. Finger buyers ask experienced people to buy, so experienced people are called buyers.

The buyer system was first put forward by the supermarket. At first, because the supermarket had no experience in purchasing clothes, it invited experienced people to purchase goods. The buyer system needs to be responsible for the sales of goods, and the goods that are not sold well cannot be returned to the manufacturers. This requires shopping malls to have a group of "buyers" who accurately understand the market and consumers. Compared with other management talents, "buyer" is still a scarce position in the domestic retail industry.