46) What information can a retailer gain by calculating GMROI, GMROL, and GMROS? Briefly describe each. 47) When determining a retail positioning strategy, what are the cost-side and demand-side decisions that must be made? 48) What are the three primary routes to market? What challenges does a retailer or manufacturer face when using multiple retail routes? 49) Discuss the reasons that major retailers have increasingly more channel power than manufacturers. 50) What are the challenges associated with globalizing a retail