Apparent cost must be paid by the manufacturer to other owners of production factors as remuneration according to the contract, and the manufacturer directly pays the cost of purchasing production factors with money. Such as the expenditure of purchasing raw materials, the payment of wages, the payment of land rent and interest, etc. It is the symmetry of "hidden cost".

Symmetry between implied cost and "obvious cost" In form, there is no cost of paying remuneration obligation according to the contract. Including the remuneration of various production factors owned by the manufacturer itself, such as capital, land and human resources, which is not obligated to pay according to the contract, but the actual cost of the product includes this part.