The price difference generally includes storage and transportation costs, and "time interest" is a very vivid title.

How do you say this vernacular?

When purchasing corn at the first level, the deep processing channels may not be considered. Buying and then selling starch and any enterprise breeding are low-grade values (corn-starch, in this relationship, starch is the final product).

Some enterprises, such as the above-mentioned starch enterprises, continue to use starch to produce other things after purchasing corn, where starch has become a raw material for re-commercialization. After deep processing (finished starch), the profit is greatly increased through industrial leverage. In fact, time interest is the value created by these deep processing.

Without this market, there will be no basic position to support circulation: if this market does not need starch products, there will be no starch market and the corn market will be meaningless.

My own understanding, I don't know if this is the case?