Respuesta :

Hagrid
There is not a direct question that you are asking but I will assume that you are talking about the value of goods sold within the market. The value of an item is determined by its quality and its age. Often antiques with good quality are sold in the market with a high value and are sometimes auctioned.

Answer,

It is determined by demand of the item relative to supply in the market

Explanation,

Value is worth of a good or service.Market value of the product is the price whereby it is affected by the demand and supply of the item.when the demand is high the supply is low hence the prices go up.When the demand is low the supply is high hence lower the price.when demand of a product is high its value is bigger while when demand is low the value tend to go lower.The lower the supply the higher the value and when the supply is high the lower the value of the item.