Walmart to invest $50 million China's largest local on-demand logistics and grocery O2O ecommerce platform New Dada   Beijing/Shanghai, China and Bentonville, Arkansas, 2016-Oct-23 — /EPR Retail News/ — Walmart (NYSE:WMT) today (Oct. 21, 2016) announced a $50 million strategic investment in New Dada, China's largest local on-demand logistics and grocery O2O ecommerce platform. The investment is an…