Principles Electroboy management would like to know the accounting for the impaired asset in periods subsequent to the impairment.

(a) Suppose conditions improve in its markets. Can the assets be written back up? Briefly discuss the conceptual arguments for this accounting.

(b) Briefly describe how accounting for impairment differs from accounting for revaluation.

(c) Define cash generating units and briefly discuss conceptual arguments for accounting of impaired intangible assets.