9 ending have both level and image effects (Stiving & Winer, 1997). More than 50% of posted retail prices end in the number 9. Customers perceive prices ending in 9 as lower than they actually are; they also associate 9 endings with special offers. Despite their widespread use and possible wearoff effects, 9 endings still seem to lead to higher sales (Anderson & Simester, 2003). The compromise effect is a phenomenon whereby brands gain market share when they become intermediate, rather than extreme, options in a choice set. Customers are averse to extreme options. Pricing managers thus have the option to increase the likelihood that customers buy a premium product by adding a well documented that companies such as Starbucks, Dell, FedEx, and Amazon make heavy use of compromise effects to profitably influence customer choice.