Amazon's move to slash free delivery times in half for Prime members — from 2 days to 1 — will squeeze American retailers, who are already scrambling to match it. But the e-commerce behemoth is still miles behind its Chinese rivals.
Why it matters: As we reported from China last summer, JD.com is already delivering 90% of its packages within 24 hours. Even 85% of packages shipped from abroad get to customers' doorsteps in a day. Last year, Alibaba said it will offer same-day delivery to all of China. Amazon is just catching up.