ACCOUNTING COST: The actual outlays or expenses incurred in production that shows up a firm's accounting statements or records. Accounting costs, while very important to accountants, company CEOs, shareholders, and the Internal Revenue Service, is only minimally important to economists. The reason is that economists are primarily interested in economic cost (also called opportunity cost). That fact is that accounting costs and economic costs aren't always the same. An opportunity or economic cost is the value of foregone production. Some economic costs, actually a lot of economic opportunity costs, never show up as accounting costs. Moreover, some accounting costs, while legal, bonified payments by a firm, are not associated with any sort of opportunity cost. See also | production | opportunity cost | economic cost | accounting profit | economic profit | normal profit | profit | Internal Revenue Service | x-inefficiency | economist |