Which costs are treated differently by economists and accountants when calculating a firm's profits?

Explicit costs are the direct, out-of-pocket expenses incurred by a firm, such as wages, rent, and materials. These costs are straightforward and universally recognized by both accountants and economists, making them a common factor in profit calculations. Since explicit costs are treated similarly by both groups, they do not highlight any significant differences in treatment.

Marginal costs refer to the additional costs incurred from producing one more unit of a good or service. Both economists and accountants use marginal costs in decision-making and cost analysis; thus, they do not differ in their treatment of this concept. Marginal costs are a critical aspect of economic theory but do not represent a divergence in profit calculation approaches between the two fields.

Out-of-pocket costs are synonymous with explicit costs, representing the actual expenditures made by a firm. These costs are similarly acknowledged by both accountants and economists, with no variance in treatment. Therefore, they do not provide a basis for distinguishing between the methodologies used by the two professions.