Books-For-All is a well-established chain of 20 bookstores in western Ohio. In recent years, the company has grown rapidly, adding five new stores in regional malls. The manger of each store selects stock based on the market in his or her region. Managers select items from a master list of available titles that the central office provides. Ever six months, a physical inventory is taken, and financial statements are prepared using the periodic inventory system. At that time, books that have not sold well are placed on sale or, whenever possible, returned to the published. Management has found that when selecting books, the new managers are not judging the market as well as the mangers of the older, established stores. Thus, management is thinking about implementing a perpetual inventory system and carefully monitoring sales from the central office. Do you think Books Unlimited should switch to the perpetual inventory system or stay with the periodic inventory system? Discuss the advantages and disadvantages of each system.