What is one problem that might commonly occur when one is bartering?

The one problem that commonly occurs when bartering is the exchange of a valuable item to a less valuable item.

Explanation

Bartering is a system of trading one product in exchange for another.

Hence, the person who needs a certain item depended on another who is ready to sell the same.

Bartering doesn't involve money transactions.  

For example, a woodcutter giving wood to a farmer in return for wheat.

But this system had many disadvantages like lack of need, double coincidence of needs, deferred payments etc.

the answer is : the nut cases won't quit battling and their recurrence of flights will going to continue as before despite the fact that the battles are less hazardous now because of their bills have all of a sudden been blunted.   in the falcon dove diversion, two creatures will drive towards one another to crush one another, among the two one will win and other will swerve. in this way, clearly, the battle will be dependably there between two creatures for the assets or mate.

answer; rarely listen to the child's point of view;