Tesla Inc showed signs of divergent strategies in the world’s two biggest automotive markets, raising prices to boost profit margins while keeping prices steady in China and hoping to grow sales there. Tesla raised prices for the most affordable versions of Model 3 and Model Y about a dozen times this year , according to data tracked by Reuters. At the same time, Tesla recently introduced an affordable Model Y version in China, where it refrained from price hikes. Tesla posted record vehicle deliveries and the price increases in North America boosted quarterly profits to a record. But in China,...