British Airways, Plc. (BA), a U.K. company, prepares its financial statements according to International Financial Reporting Standards. BA's annual report for the year ended March 31, 2009, which includes financial statements and disclosure notes, is included with all new textbooks and can be found at www.britishairways.com. When answering questions, focus on BA's “Group” financial information (which is equivalent to “Consolidated” under U.S. GAAP).

Required:
BA's inventories are valued at the lower of cost and net realizable value. How does this approach differ from U.S. GAAP?