LONDON—Regulators blocked the proposed merger between Walmart Inc.’s British grocery unit and rival J Sainsbury PLC citing competition concerns, meaning the U.S. retail giant must now find ways to drive stand-alone growth for Asda Group in the U.K.’s highly competitive retail market. Britain’s Competition and Markets Authority said Thursday the merger would reduce competition and could lead to price rises for shoppers. The decision is a major disappointment for both retailers for whom the uncertainty about the deal has proved...

Source: Wall Street Journal April 25, 2019 08:10 UTC