The Necessity to Introduce the Accounting Rules and Fair Value in the Conceptual Framework

In this paper, I present the fact that important organisations, such as FASB in the United States of America and IASC accept the accounting model of evaluation at fair value which substitutes the historical cost model. Supporters of innovation find the principles, tenets and conventions of any kind, in a way not only to adapt better to the reality, but also to anticipate developments. Although we do not provide evidences as the model for the initial and future evaluations of assets and liabilities (financial and/or non-financial) company, the fair value is the measure of evaluation the most relevant because the trades made on the day of their development reflect the reality of the moment and all the tools that need to be negotiated quickly by the company determine the getting a quick gain. The acceptance of the fair value by all potential users should be subject to a prior agreement.