The United States is undeniably on a same-day delivery binge. The graphs of the U.S.’s e-commerce market size and Amazon’s free-delivery times are near-perfect mirror images of each other, with delivery times plummeting as e-commerce takes off. Estimates put the percentage of retailers offering same-day services anywhere between 50% and 67% as consumers are becoming increasingly impatient — according to a 2020 McKinsey report, about half of them abandoned their online shopping carts because of...
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