iPhone Market Share December 2018 December 2017 Market Share Change 43.9% Country United States Mexico China Japan 4.4 43.7% 5.5 23.3 46.4 28.6 55.2 -0.2% +1.1 -5.3 -8.8 1. What insights would this provide for a marketing manager with responsibility for global sales of the iPhone? 2. Speculate on why the iPhone's market share declined so much over one year in China and Japan 3. Why do you think market share for the iPhone is much higher in the United States and Japan as compared to Mexico and China? Look at data in Exhibit 3-3 for ideas