Asia Pacific contains both the largest and the fastest growing eCommerce markets (China and India, respectively) that Forrester forecasts across the globe. Our forecast outlines the magnitude of the opportunity in the region: Today, total online retail revenues in just five markets in Asia Pacific surpass the combined figure for online retail in the US and all of Western Europe. In the markets included in this forecast — China, Japan, South Korea, India, and Australia — total online retail revenues will nearly double from $733 billion in 2015 to $1.4 trillion in 2020. In this report, we look at the growth in these markets over the next five years and some of the key trends shaping the development of online retail in each one.