Fair Value is an accounting expression, originally defined by the SEC.Under GAAP, the Fair Value of an asset is the amount at which that asset could be bought or sold in a current transaction between willing parties, other than in a liquidation. On the other side of the balance sheet, the Fair Value of a liability is the amount at which that liability could be incurred or settled in a current transaction between willing parties, other than in a liquidation. If available, a quoted market price in an active market is the best evidence of Fair Value and should be used as the basis for the measurement. If a quoted market price is not available, preparers should make an estimate of Fair Value using the best information available in the circumstances. In many circumstances, quoted market prices are unavailable. As a result, making estimates of Fair Value is often difficult.