Income Components in the Italian and International Experience: From the Contraposition between Ordinary and Extraordinary Costs and Revenues to the Contraposition between Income Components Extraneous or not Extraneous to the Business Activity up to the Negation of Any Contraposition between Types of Costs or Revenues

The costs and revenues recognised in the profit and loss for users outside the company have evolved in various countries and at the level of international accounting standards concerning the juxtaposition of large aggregates of negative and positive income components. Over time, there was talk of costs and revenues without any contraposition whatsoever, even going so far as to state that a profit and loss was perfectly valid with three items recorded in such a document: total costs, total revenues, profit or loss for the year. Over time, this situation has completely changed both in Italy and internationally. In the 1990s, the profit and loss governed by the international IAS and the profit and loss governed by Italian civil law presupposed the contraposition of extraordinary costs and revenues. After this contraposition had been eliminated at the international level, discussions began in Italy about whether the contraposition between extraordinary and ordinary income components could be replaced with another contraposition using the term 'extraneousness' or 'not extraneousness' to the company's activity. .