Dominic Detzen, Tobias Stork genannt Wersborg, Henning Zülch

• This case originated from a real-life business situation and illustrates the application of impairment tests in accordance with IFRS and US GAAP. In the first part of the case study, students examine conceptual questions of impairment tests under IFRS and US GAAP with respect to applicable accounting standards, definitions, value concepts and frequency of application. In addition, the case encourages students to discuss the impairment regime from an economic point of view. The second part of the instructional resource continues to provide instructors with the flexibility of applying US GAAP and/or IFRS when students are asked to test a long-lived asset for impairment and, if necessary, allocate any potential impairment. This latter part demonstrates that impairment tests require professional judgment that students are to exercise in the case.