In order to comprehend the ontological construction below, please refer to the respective posts for all notions in italic.
Any ordinary income increase, given as a result of marketing activities, is a normal profit. All products on a market form the income derived from it. As trading of commodities makes a market, every one of them is important for the existence of exchange. So in the market exchange, every economic good impacts the accounting profit according to its ever shifting contribution, which is predetermined by what is already given as capital in it. Thus the normal profit is just a payoff for the entrepreneurship that brings the goods about.
Historical Backdrop
• RICHARD CANTILLON Essay on the Nature of Commerce in General: profit.
• ADAM SMITH The Wealth of Nations: profit.
• JOHN BATES CLARK The Distribution of Wealth: marginal productivity theory of distribution.
• EUGEN VON BÖHM-BAWERK Karl Marx and the Close of His System: profit.