Walmart has recently been awarded patents by the U.S. Patent and Trademark Office (USPTO) for AI tools that help set pricing decisions. Those patents are getting attention on social media this week as consumers worry about the future of dynamic pricing and so-called surveillance pricing, the practice of charging people different prices for the same goods and services based on their unique attributes. One of the new patents, US-12524776-B2, includes ways for “dynamically and automatically updating item prices” on e-commerce platforms. The patent filing explains that it combines price elasticity data and predicted demand for a given item, and then...