China Railway builders take the silk road back home

China’s efforts to open itself to the world aren’t meeting much success of late, with MSCI’s refusal to admit the nation’s stocks to its emerging markets index the latest blow to President Xi Jinping’s ambitions. Now China’s attempts to build hard physical connections are looking like they, too, may disappoint.The developers of a planned high-speed railway between Los Angeles and Las Vegas this month pulled out of a joint venture with a unit of China Railway Group, the country’s second-biggest builder.