INVENTORY OBSOLESCENCE is when inventory is no longer salable. Possibly due to too much inventory on hand, out of fashion or demand. The true value of the inventory is seldom exactly what is shown on the balance sheet. Often, there is unrecognized obsolescence.
INDUCTIVE ACCOUNTING THEORY (scientific method) assumes accounting standards are somewhat like evolution of a species in nature --- survival of the fittest. It relies heavily upon controlled experimentation (e.g., behavioral accounting research) and statistical testing (e.g., capital markets "events" studies of the impact of accounting information on market prices and volume of transactions).
VALUE is a term that defines the worth of a thing. The term is usually preceded by the word, or words such as Fair" or "Fair Market", and it is usually defined in the document where it is found. Not all value for an item is the same, i.e. value is usually perceived.
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