Companies are required to disclose the method of inventory valuation used in something called an Annual Report. These Annual Reports are required to be filed with the SEC (www.sec.gov), and are filed as a 10-K (Type of Report). Go to the SEC's website and type in a company that interests you (must be a retail company that deals with inventory). Find the latest 10-K or Annual Report filed by that company and open it. Find the notes to the financial statements and discuss the type of inventory valuation methods used by the company you've chosen. Why do you think they would have chosen this method?