What kinds of risks does a firm like Amazon.com face with respect to safeguarding its assets? What types of controls do you think it already has in place to minimize these risks? Go to the firms website and click on Investor Relations. Youll be able to find the firms annual report to help you answer these questions. Are any specific controls mentioned in the annual report? What depreciation method does Amazon use for property and equipment? What is the range of useful lives for buildings and for fixtures and equipment? Do these useful lives make sense? Find the heading Goodwill. What type of an asset is goodwill? Does Amazon write off this asset? Explain what the company does.