There are two general consumer goods, roughly divided. That is

1)    Products with expiration date and best-before date: Food, beverages

2)    Products with intense obsolescence and declining prices: FMCG (Fast Moving Consumer Goods): apparel, shoes, etc.

Also, the market is often referred to as the seller market and the buyer market.

Economy is rising sharply with the era of the seller's market, when the seller side offers products for their own reasons, it is the time when customers buy it, sell it cheaply when prices are lowered.

On the other hand, the era of the buyer's market is the era when customers no longer buy unless they find value in the quality of goods and services as a result of the rich living environment.

In a buyer's market, if you try to sell with a seller's market experience, it becomes excessive supply, also not sell the commodity. Because it is not of a lack of demand, but the gap between the current situation of the buyer’s market and the idea of the seller's market has led to excess supply.