Answer:
Transactions costs.
Explanation:
Transactions costs are the cost that a business incurs in the course of making a trade. It is not directly part of the product but is realised during transacting activities.
Examples of transaction cost includes legal fees, charges on communication, cost incurred in finding information on price, and labour that conveys product to the market.
Determining transaction cost is important because if transaction costs are high income will reduce, while low transaction cost result in higher income.