Amazon Targets Medicaid Recipients as It Widens War for Low-Income Shoppers

Amazon.com Inc. is expanding its discounted Prime program, its latest salvo in a battle with Walmart Inc. for low-income shoppers.

The online retail giant said Wednesday that it will extend its $5.99 monthly Prime membership to the roughly 20% of the U.S. population that is signed up for Medicaid. Last year, the company introduced the discount—Prime membership ordinarily costs $12.99 a month or $99 a year—by offering it to people who obtain government assistance with cards typically used for the food-stamp program, formally...